Date   
Re: Adjusting pa bias (RV3) blows one of the final #ubitx

M0OOZ
 

From experience, a mutiturn pot is not only unnecessary, it is less durable than a 'normal' pot. 

May the peace be with you. 

M0OOZ

On Fri, 29 Nov 2019, 09:23 srivatsa KS, <srivatsak.s@...> wrote:
Thanks Raj, yes it's skewed! I'll replace the pot with the Bourne multi turn and check. Thanks.

Re: Adjusting pa bias (RV3) blows one of the final #ubitx

M0OOZ
 

An indicator lamp (incandescent) is sufficient

M0OOZ

On Fri, 29 Nov 2019, 17:18 Jerry Gaffke via Groups.Io, <jgaffke=yahoo.com@groups.io> wrote:
Any particular "car lamp"?
There's headlights, tail lights, brake lights, dash lights, turn signals, ...
There's incandescent, halogen, LED, ...

My guess is that you are thinking of something like an 1157 incandescent light.
    https://www.amazon.com/SYLVANIA-1157-Miniature-Contains-Bulbs/dp/B0031HAN92

This has two different filaments, try the thinner tail light filament first.
If the voltage drops too much at the required current then try the thick brake light filament.
Could get a little bit more ummph by running both filaments in parallel.

Seems an incandescent light is well suited to this sort of thing since the resistance goes up drastically when it's hot.
So it has little effect at low currents, but severely restricts high currents.
An 1157 plus jumper cables to a 12v source is a quick and easy current limited power supply.
Assuming you are happy with a rough current limit of something under 1 Amp.

I have never tried it.

Jerry, KE7ER



On Fri, Nov 29, 2019 at 07:21 AM, Lawrence Galea wrote:
Apart from the suggestions by our friends, best is to use a current limited supply so that if it goes above the setting it will protect the set or use a car lamp in series with the supply which will also provide some protection.
As suggested a multi-turn pot is better to adjust the bias.
Happy weekend
Lawrence

Re: Taa-Daa

Gordon Gibby
 

Explanation;  That book, "Spying on WINLINK" was written and published in 3  days, expressly to let the Board of ARRL become aware that there is NO encryption in WINLINK.    It proposed methods to take the simple clever experiment detailed within the book, and expand to a REAL monitoring system.   Hundreds of pages of original research and studies and documentation have since flowed to the FCC, and manay many chapters need to be added to the text and a 2nd edition put out, which will likely happen when the FCC begins to make its rulings on 16-239 etc.    At that point, the book will become a real history of the horrible, and astonishing arguments that went on in hundreds of comments before the FCC in RM-11831 and 16-239.....   

The book on Disaster ministry radio communications was written as an inexpensive way for me to have a training manual for volunteers here in faith-based ministries that needed hams to work with their myriad communications needs.    Not tied to any one group, it may benefit volunteers from multiple states. 

The hardest part of writing these kinds of books is obviously the proofreading, and a ton of that has to go on.   Schematics get scan and imported just as photographs; photos go right in without any problem, but Kindle will complain at you if they are of low resolution.   You get to see "galley proofs" on your computer if you prefer that, of you can download a PDF of the galley proofs, or you can have them mail you a real, hold in your hand, galley proof book for under $3.   

Author copies of texts (I use both the 9x6" size and the 8.5x11" size for various books; they have templates for any size you might want) are about $3/each when you factor in shipping, and I'll order  40-100 copies at a crack to handle local groups or conferences.   Those take 2-3 weeks, but a few copies (at ffull price) from Amazon are here in 2-3 days.    This was just SUCH an improvement over having something bound at Kinko's or handing out stapled zerox copies, that I never went back to those old ways of doing things.

I teach others how to do this to benefit their groups. Easy.

Gordon


On Sat, Nov 30, 2019 at 3:58 AM Gordon Gibby via Groups.Io <docvacuumtubes=gmail.com@groups.io> wrote:
Jack --

I may have some news, then, of interest to you.   Publishing a real, paperback book that you can hold in your hand (or have it electronically if one prefers) is not only cheap, it is FREE.   You may know this, but it sounded as if you might not.  

For my particular interests, the ability to get books published at ZERO COST to myself -- nothing! -- and to be able to get copies to teach local people, groups with at very very low cost ($2.15-$2.50 ea) was the most important thing to me.   By using Amazon, I'm able to do ALL of that, and theyhandle all the distribution for me.  Done.   Plus, when I want to revise the book and update it, the process is very simple and generally only takes an email or message or two and the old book "retires" and it replaced on Amazon's shelves with the new book.   Cost is $0.   

I must have 13 texts out there in paperback (and most of them Kindle as well) format -- and I have never spent a penney.   Of course, Amazon would love for me to do so in order to push them, but I never do.   I give away scores and scores of copies, and word gets around, and people benefit all over the nation, and occasinaly even over the world.

I have certainly done my part to put $ in the coffers of the ARRL -- bought a bunch of copies of their license manual and had sent to students in Haiti.   Unfotunately, they never were willing to study enough to take the test, which was discouraging.   But now that I'm looking at doing something in the schools here, those costs are somewhat daunting, even with the nice discount the ARRL offers registered instructors like me.    I may yet write an entry license  manual just to save $$$.   

If you go to Amazon and enter Gordon L. Gibby you'll see a bunch of books on emerrgency commmunications, how to do HSEEP-compliant full scale exercises, and even books on how to build a sound-card type digital interface.   I don't do any formal advertizing at all --- and they still sell.   I have also done the pen-name route this way and with excellent results.   I am astonished, but I can check sales any day I wish and download spreadsheets, the whole bit.   I get to set the price MYSELF and I generally set it ridiculously LOW because my goal is to expand the teaching in the area of Emergency Communications.   Every Conference we hold in Florida, I have all the speakers write a chapter, and then I publish their chapters and get a copy of the text to all participants at the door.   That makes for a much higher quality teaching at the conference!

KINDLE DIRECT PUBLISHING.   I use Libre Office to create the texts, because it is free also.   Kindle handles both the paperbacks and the Kindle books for Amazon.   They prefer PDF upload to create the paperbacks, but they prefer .doc or .docx for the Kindle (odd, huh?) -- and it all works out as one would expect, given what little work I put into it.  For cheapness, I use only the color cover (you get that for free) and everything INSIDE is black and white to reduce costs.   But that generally works out fine for the area in which I'm publishing.   A noted anesthesiologist friend of mine was having delays and huge costs with academic publishers; I explained to him how to publish using Amazon and he had a book on the market about regional nerve blocks within I think 3 weeks, and sold 1200 copies **IN JAPAN** the first weekend.    He was as happy as he could be and told me I had changed everything and he would now publish a new book every month for a year.  

Gordon




On Sat, Nov 30, 2019 at 12:10 AM Jack, W8TEE via Groups.Io <jjpurdum=yahoo.com@groups.io> wrote:
I appreciate and understand that, and I know you're not alone. There may be a way to make everyone happy. Al and I are checking an idea out...If it proves viable, we will report it.


Jack, W8TEE

On Friday, November 29, 2019, 3:21:28 PM EST, Richard Spohn <wb2gxm@...> wrote:


Guess you won't listen to me but I am totally into through-hole, I do
not like SMD at all. -- Rich WB2GXM

On 11/29/19, Jack, W8TEE via Groups.Io <jjpurdum=yahoo.com@groups.io> wrote:
>  Mornin' Jim:
> Al and I have talked about this at length and, given what we read over the
> past 24 hours, I'm almost certain we will do SMD boards. I doubt we will do
> two versions of the boards and I also doubt that we will release the Gerber
> files. Al and I have invested 17 months and many 12 hour days working on the
> book and we know that our expected hourly wage will be somewhere around
> $0.50/hour. QRP Guys will be selling the boards at reasonable cost and it's
> one way that we might get some revenue from people who don't pay for the
> book. (My last two publishers agree that for every book I sell, 3 are ripped
> off through torrent sites.)
> For those who may not have seen it, if you haven't tried working with SMD
> devices, I encourage you to spend $2 and buy a practice kit. This one is
> eBay 172645304752
>
>
> Our boards will use the 1206 sized SMD, which you can see their size in the
> above photo. I also think this video: How to Solder SMD Components!
>
> |
> |
> |
> |  |  |
>
>  |
>
>  |
> |
> |  |
> How to Solder SMD Components!
>
> In this video, I will show you how to solder SMD components using soldering
> iron as well as using hot air. In la...
>  |
>
>  |
>
>  |
>
>  is very good in showing what SMD are and how to solder them. As to the
> cost, a 2000 SMD resistor assortment with 50 values is less than $10. Caps
> are a little more expensive, but $10 still buys 320 pieces with about 16
> different values. Electronic Parts Online Store - Tayda Electronics sells
> quantity 1 1206 resistors for $0.01 each and they are fairly fast
>
>
> |
> |
> |
> |  |  |
>
>  |
>
>  |
> |
> |  |
> Electronic Parts Online Store - Tayda Electronics
>
>
>  |
>
>  |
>
>  |
>
>
> in shipping products as they have a warehouse in CO.
>
> So, it's going to be SMD's. We'll know more about the costs when we start to
> get estimates on the boards, as their size will vary. We will also
> investigate boards with the SMD parts in place, which will leave only
> "large" pieces (e.g., IDC connectors, voltage regulators, etc.) left to do
> on the boards. That's a little riskier, since we have no idea which products
> will be the "most built". More on that much later.
>
> Jack, W8TEE
>
>
>
>
>    On Friday, November 29, 2019, 1:50:11 AM EST, Jim Pruitt
> <jpruitt67@...> wrote:
>
>  Hello Jack.
>
>  Are you taking a poll?  You might actually make a Groups.io poll asking
> your question.  Yes,  I know, there will be lots of people that think they
> are participating in the poll by posting their comment and why they chose
> that particular thing but a poll would make it easier for you.
>
>  My vote is for smt pc boards but you might also consider making 2 versions,
> one through hole and the other as smt.  I know that would be more work but
> would appease both.  I am almost 71 years old and have no fear of smt (well,
> some fear anyway as I currently have a project -RadioBerry that uses a
> LFPGA144 Intel chip and a AD9866 QFN64 and no option to drag solder--and do
> not like drag soldering).  I well know that many parts are no longer
> available in through hole.  Many that are available are not stocked by
> DigiMouse or have a 10,000 minimum order (OK, usually 1000 but that is still
> more than most of us can afford--even if we had an outlet for the extra
> 999).  If we as a group start finding that projects are only available in
> smt versions then it might force us as a whole to embrace or at least try
> smt.  The other option would be to make the gerbers available (for the smt
> version) and tell us we can submit out orders to JLCSteeedPCBWay and request
> assembly (of the smt parts) and how to place that order since the smt parts
> would not normally be included in a board order but these outfits do
> assembly and preassembly...at a price.
>
>  I think if the various projects use SOCI8 chips that it would be easier for
> us old farts to figure out that it aint that bad!  I would not layout a
> board for the RadioBerry and its LFCSP144 (or whatever that 144 pin fpga is
> called) on a 5/8" square then we would all run in terror!
>
>  In summary, I vote for smt if both are not an option.  Even if it is an
> option I would still buy the smt version over the through hole because I
> know how hard it is getting to find many through hole parts.
>
>  Thank you.
>
>  Jim Pruitt
>  WA7DUY
>
>
>  On 11/28/2019 1:41 PM, jjpurdum via Groups.Io wrote:
>
>
>  While they are editing the book, Al and I will be making PCB's for all but
> the most trivial of the projects. One thing we go back and forth about is
> whether to do the boards for through-hole or SMD parts. We both want to do
> SMD, but we also know a lot of people are afraid of SMD's. My feeling: If,
> at my age, I can work with  SMD's, anyone can. Also, the cost is
> significantly lower, too. On the other hand, a lot of hams won't even try to
> use an SMD board. It's not going to be a major revenue source for us anyway,
> so we're wondering what people actually want. Manufacturing an SMD board is
> a little less expensive and, ceteris paribus, can be a little smaller. I
> would be interested in hearing what the group thinks on the matter.
>  Jack, W8TEE
>
>      On Thursday, November 28, 2019, 2:03:37 PM EST, Gwen Patton
> <ardrhi@...> wrote:
>
>      It all looks wonderful, Jack! I'm looking forward to a couple of those,
> but mostly the luggable double-double. I want to build one, and mount it so
> I can hoist it on a mast held by a drive-on mast mount in my van. That way,
> I can operate from the van out in the field, from parks and such, and not
> have to get out in the weather. I have lots of radios I can take (and
> usually do), but I need to get or build a reasonable amp that can run off
> power from the van easily and safely. Maybe a 50W. With the remote control,
> that loop looks like exactly what I need, along with some of the wires I can
> hang from the same mast (when I'm not using the loop, of course).
>  I repurposed an Acer Chromebook CB3-111 for field use. I replaced the
> ChromeOS with GalliumOS, a distro of Linux based on Xubuntu. It works great,
> and I just got JS8Call working on it this morning. I've got FLDigi and FLRig
> installed, Qtel, a very well done Echolink client, and some  various and
> sundry other programs, like a flavor of NEC for antenna modeling (which I
> still need to learn how to use), and a decent logger. I can tether it to my
> phone via WiFi and get on the Internet, and access QRZ for lookups -- my
> battery selection was such that I can also power the phone, and once I get a
> cable built for it, the Chromebook as well. It'll streamline my field ops a
> lot, reducing what I need to carry to do some serious operating!
>  I can't wait for that book to come out! It looks great, and you and Al
> deserve some serious applause for it.
>  73, Gwen, NG3P
>    On Thu, Nov 28, 2019 at 1:44 PM jjpurdum via Groups.Io
> <jjpurdum=yahoo.com@groups.io> wrote:
>
>    All:
>  Most of you are aware that Al (AC8GY) and I are working on a sequel to the
> Projects book titled Microcontroller Projects for Amateur Radio. We changed
> the title because we have not limited ourselves to the Arduino family of
> processors, but include the STM32F1, ESP32, and the Teensy 4.0 controllers.
> All can be (and, for the book, are) programmed  in the Arduino IDE using C.
> Today, Al and I finished writing the narrative for the last chapter of the
> book.
>
>  We have signed with the ARRL to publish the book, and one reason for
> signing with them is that they had enough faith to sign a contract with us,
> but allow us to finish all of the projects before submitting the chapters.
> That way, Al and I could work in the absence of a publisher breathing down
> our necks. That's the good news. The bad news is that, despite us beating
> our Jan 1, 2020, deadline, they are putting the new License manual ahead of
> us in the production queue. (Boo !) I asked if it would be ready by FDIM and
> they said no. That was a huge disappointment, but it is what it is. I'm
> still hopeful it will be out before the end of the second quarter of next
> year. Still, we feel like a 15 month stone has been lifted off our backs.
>
>  Anyway, what follows are some photos of most of the projects. I'll keep
> everyone posted on publishing details when I know them.
>
>  Jack, W8TEE Al, AC8GY
>
>  two channel DSP (there's a preprocessor project, too)
>    Signal generator, up to 30MHz.
>
>  All kinds of test functions (i.e., different wave forms at  various
> voltages)
>
>  30W mini DL with watt meter (almost fits in a shirt pocket)
>
>  Old computer PS redesigned for powering the projects.
>
>  Morse Code Tutor (the subject of my FDIM presentation  this year)
>
>  Antenna tuner with SWR display and scan function (very useful for trimming
> antennas)
>
>  Our Mag loop with remote controller (tested to 100' and used  in Field
> Day).
>
>
>
>
>
>
>  --
>
>  -+-+-+-+-
>  Jenny Everywhere's Infinite: Quark Time
http://quarktime.net
>
>
>
>
>



--
Jack, W8TEE

Re: Adjusting pa bias (RV3) blows one of the final #ubitx

MVS Sarma
 

Before powering fresh, you should first keep both pots fully clockwise so that both gates are at zero potential. 


On Sat, 30 Nov 2019, 11:35 am Raj vu2zap, <rajendrakumargg@...> wrote:
Try adjusting the drive  control VR1 and see..

Raj

At 29/11/2019, you wrote:

I had a Bourne 10k single turn lying around my shack which i used. I also replaced the blows IRF 510 today .


Rx only consumes 150ma. TX no modulation takes 350mA. Adjusted pa bias 100mA from each IRF510. So max consumption(no modulation) is 550-560ma .
While speaking to mic there is no significant increase in current. Max 600-650mA. Output power measured on my swr meter is 2-3watt max with me shouting into the PTT on 40m . Is this normal?

Re: Taa-Daa

Gordon Gibby
 

Jack --

I may have some news, then, of interest to you.   Publishing a real, paperback book that you can hold in your hand (or have it electronically if one prefers) is not only cheap, it is FREE.   You may know this, but it sounded as if you might not.  

For my particular interests, the ability to get books published at ZERO COST to myself -- nothing! -- and to be able to get copies to teach local people, groups with at very very low cost ($2.15-$2.50 ea) was the most important thing to me.   By using Amazon, I'm able to do ALL of that, and theyhandle all the distribution for me.  Done.   Plus, when I want to revise the book and update it, the process is very simple and generally only takes an email or message or two and the old book "retires" and it replaced on Amazon's shelves with the new book.   Cost is $0.   

I must have 13 texts out there in paperback (and most of them Kindle as well) format -- and I have never spent a penney.   Of course, Amazon would love for me to do so in order to push them, but I never do.   I give away scores and scores of copies, and word gets around, and people benefit all over the nation, and occasinaly even over the world.

I have certainly done my part to put $ in the coffers of the ARRL -- bought a bunch of copies of their license manual and had sent to students in Haiti.   Unfotunately, they never were willing to study enough to take the test, which was discouraging.   But now that I'm looking at doing something in the schools here, those costs are somewhat daunting, even with the nice discount the ARRL offers registered instructors like me.    I may yet write an entry license  manual just to save $$$.   

If you go to Amazon and enter Gordon L. Gibby you'll see a bunch of books on emerrgency commmunications, how to do HSEEP-compliant full scale exercises, and even books on how to build a sound-card type digital interface.   I don't do any formal advertizing at all --- and they still sell.   I have also done the pen-name route this way and with excellent results.   I am astonished, but I can check sales any day I wish and download spreadsheets, the whole bit.   I get to set the price MYSELF and I generally set it ridiculously LOW because my goal is to expand the teaching in the area of Emergency Communications.   Every Conference we hold in Florida, I have all the speakers write a chapter, and then I publish their chapters and get a copy of the text to all participants at the door.   That makes for a much higher quality teaching at the conference!

KINDLE DIRECT PUBLISHING.   I use Libre Office to create the texts, because it is free also.   Kindle handles both the paperbacks and the Kindle books for Amazon.   They prefer PDF upload to create the paperbacks, but they prefer .doc or .docx for the Kindle (odd, huh?) -- and it all works out as one would expect, given what little work I put into it.  For cheapness, I use only the color cover (you get that for free) and everything INSIDE is black and white to reduce costs.   But that generally works out fine for the area in which I'm publishing.   A noted anesthesiologist friend of mine was having delays and huge costs with academic publishers; I explained to him how to publish using Amazon and he had a book on the market about regional nerve blocks within I think 3 weeks, and sold 1200 copies **IN JAPAN** the first weekend.    He was as happy as he could be and told me I had changed everything and he would now publish a new book every month for a year.  

Gordon




On Sat, Nov 30, 2019 at 12:10 AM Jack, W8TEE via Groups.Io <jjpurdum=yahoo.com@groups.io> wrote:
I appreciate and understand that, and I know you're not alone. There may be a way to make everyone happy. Al and I are checking an idea out...If it proves viable, we will report it.


Jack, W8TEE

On Friday, November 29, 2019, 3:21:28 PM EST, Richard Spohn <wb2gxm@...> wrote:


Guess you won't listen to me but I am totally into through-hole, I do
not like SMD at all. -- Rich WB2GXM

On 11/29/19, Jack, W8TEE via Groups.Io <jjpurdum=yahoo.com@groups.io> wrote:
>  Mornin' Jim:
> Al and I have talked about this at length and, given what we read over the
> past 24 hours, I'm almost certain we will do SMD boards. I doubt we will do
> two versions of the boards and I also doubt that we will release the Gerber
> files. Al and I have invested 17 months and many 12 hour days working on the
> book and we know that our expected hourly wage will be somewhere around
> $0.50/hour. QRP Guys will be selling the boards at reasonable cost and it's
> one way that we might get some revenue from people who don't pay for the
> book. (My last two publishers agree that for every book I sell, 3 are ripped
> off through torrent sites.)
> For those who may not have seen it, if you haven't tried working with SMD
> devices, I encourage you to spend $2 and buy a practice kit. This one is
> eBay 172645304752
>
>
> Our boards will use the 1206 sized SMD, which you can see their size in the
> above photo. I also think this video: How to Solder SMD Components!
>
> |
> |
> |
> |  |  |
>
>  |
>
>  |
> |
> |  |
> How to Solder SMD Components!
>
> In this video, I will show you how to solder SMD components using soldering
> iron as well as using hot air. In la...
>  |
>
>  |
>
>  |
>
>  is very good in showing what SMD are and how to solder them. As to the
> cost, a 2000 SMD resistor assortment with 50 values is less than $10. Caps
> are a little more expensive, but $10 still buys 320 pieces with about 16
> different values. Electronic Parts Online Store - Tayda Electronics sells
> quantity 1 1206 resistors for $0.01 each and they are fairly fast
>
>
> |
> |
> |
> |  |  |
>
>  |
>
>  |
> |
> |  |
> Electronic Parts Online Store - Tayda Electronics
>
>
>  |
>
>  |
>
>  |
>
>
> in shipping products as they have a warehouse in CO.
>
> So, it's going to be SMD's. We'll know more about the costs when we start to
> get estimates on the boards, as their size will vary. We will also
> investigate boards with the SMD parts in place, which will leave only
> "large" pieces (e.g., IDC connectors, voltage regulators, etc.) left to do
> on the boards. That's a little riskier, since we have no idea which products
> will be the "most built". More on that much later.
>
> Jack, W8TEE
>
>
>
>
>    On Friday, November 29, 2019, 1:50:11 AM EST, Jim Pruitt
> <jpruitt67@...> wrote:
>
>  Hello Jack.
>
>  Are you taking a poll?  You might actually make a Groups.io poll asking
> your question.  Yes,  I know, there will be lots of people that think they
> are participating in the poll by posting their comment and why they chose
> that particular thing but a poll would make it easier for you.
>
>  My vote is for smt pc boards but you might also consider making 2 versions,
> one through hole and the other as smt.  I know that would be more work but
> would appease both.  I am almost 71 years old and have no fear of smt (well,
> some fear anyway as I currently have a project -RadioBerry that uses a
> LFPGA144 Intel chip and a AD9866 QFN64 and no option to drag solder--and do
> not like drag soldering).  I well know that many parts are no longer
> available in through hole.  Many that are available are not stocked by
> DigiMouse or have a 10,000 minimum order (OK, usually 1000 but that is still
> more than most of us can afford--even if we had an outlet for the extra
> 999).  If we as a group start finding that projects are only available in
> smt versions then it might force us as a whole to embrace or at least try
> smt.  The other option would be to make the gerbers available (for the smt
> version) and tell us we can submit out orders to JLCSteeedPCBWay and request
> assembly (of the smt parts) and how to place that order since the smt parts
> would not normally be included in a board order but these outfits do
> assembly and preassembly...at a price.
>
>  I think if the various projects use SOCI8 chips that it would be easier for
> us old farts to figure out that it aint that bad!  I would not layout a
> board for the RadioBerry and its LFCSP144 (or whatever that 144 pin fpga is
> called) on a 5/8" square then we would all run in terror!
>
>  In summary, I vote for smt if both are not an option.  Even if it is an
> option I would still buy the smt version over the through hole because I
> know how hard it is getting to find many through hole parts.
>
>  Thank you.
>
>  Jim Pruitt
>  WA7DUY
>
>
>  On 11/28/2019 1:41 PM, jjpurdum via Groups.Io wrote:
>
>
>  While they are editing the book, Al and I will be making PCB's for all but
> the most trivial of the projects. One thing we go back and forth about is
> whether to do the boards for through-hole or SMD parts. We both want to do
> SMD, but we also know a lot of people are afraid of SMD's. My feeling: If,
> at my age, I can work with  SMD's, anyone can. Also, the cost is
> significantly lower, too. On the other hand, a lot of hams won't even try to
> use an SMD board. It's not going to be a major revenue source for us anyway,
> so we're wondering what people actually want. Manufacturing an SMD board is
> a little less expensive and, ceteris paribus, can be a little smaller. I
> would be interested in hearing what the group thinks on the matter.
>  Jack, W8TEE
>
>      On Thursday, November 28, 2019, 2:03:37 PM EST, Gwen Patton
> <ardrhi@...> wrote:
>
>      It all looks wonderful, Jack! I'm looking forward to a couple of those,
> but mostly the luggable double-double. I want to build one, and mount it so
> I can hoist it on a mast held by a drive-on mast mount in my van. That way,
> I can operate from the van out in the field, from parks and such, and not
> have to get out in the weather. I have lots of radios I can take (and
> usually do), but I need to get or build a reasonable amp that can run off
> power from the van easily and safely. Maybe a 50W. With the remote control,
> that loop looks like exactly what I need, along with some of the wires I can
> hang from the same mast (when I'm not using the loop, of course).
>  I repurposed an Acer Chromebook CB3-111 for field use. I replaced the
> ChromeOS with GalliumOS, a distro of Linux based on Xubuntu. It works great,
> and I just got JS8Call working on it this morning. I've got FLDigi and FLRig
> installed, Qtel, a very well done Echolink client, and some  various and
> sundry other programs, like a flavor of NEC for antenna modeling (which I
> still need to learn how to use), and a decent logger. I can tether it to my
> phone via WiFi and get on the Internet, and access QRZ for lookups -- my
> battery selection was such that I can also power the phone, and once I get a
> cable built for it, the Chromebook as well. It'll streamline my field ops a
> lot, reducing what I need to carry to do some serious operating!
>  I can't wait for that book to come out! It looks great, and you and Al
> deserve some serious applause for it.
>  73, Gwen, NG3P
>    On Thu, Nov 28, 2019 at 1:44 PM jjpurdum via Groups.Io
> <jjpurdum=yahoo.com@groups.io> wrote:
>
>    All:
>  Most of you are aware that Al (AC8GY) and I are working on a sequel to the
> Projects book titled Microcontroller Projects for Amateur Radio. We changed
> the title because we have not limited ourselves to the Arduino family of
> processors, but include the STM32F1, ESP32, and the Teensy 4.0 controllers.
> All can be (and, for the book, are) programmed  in the Arduino IDE using C.
> Today, Al and I finished writing the narrative for the last chapter of the
> book.
>
>  We have signed with the ARRL to publish the book, and one reason for
> signing with them is that they had enough faith to sign a contract with us,
> but allow us to finish all of the projects before submitting the chapters.
> That way, Al and I could work in the absence of a publisher breathing down
> our necks. That's the good news. The bad news is that, despite us beating
> our Jan 1, 2020, deadline, they are putting the new License manual ahead of
> us in the production queue. (Boo !) I asked if it would be ready by FDIM and
> they said no. That was a huge disappointment, but it is what it is. I'm
> still hopeful it will be out before the end of the second quarter of next
> year. Still, we feel like a 15 month stone has been lifted off our backs.
>
>  Anyway, what follows are some photos of most of the projects. I'll keep
> everyone posted on publishing details when I know them.
>
>  Jack, W8TEE Al, AC8GY
>
>  two channel DSP (there's a preprocessor project, too)
>    Signal generator, up to 30MHz.
>
>  All kinds of test functions (i.e., different wave forms at  various
> voltages)
>
>  30W mini DL with watt meter (almost fits in a shirt pocket)
>
>  Old computer PS redesigned for powering the projects.
>
>  Morse Code Tutor (the subject of my FDIM presentation  this year)
>
>  Antenna tuner with SWR display and scan function (very useful for trimming
> antennas)
>
>  Our Mag loop with remote controller (tested to 100' and used  in Field
> Day).
>
>
>
>
>
>
>  --
>
>  -+-+-+-+-
>  Jenny Everywhere's Infinite: Quark Time
http://quarktime.net
>
>
>
>
>



--
Jack, W8TEE

Re: Book TOC

Gary Kantor
 

Hi Jack,

 

            That sounds just like the rig I’d be very interested in building for myself.

The 7” display should allow enough space to display a nice sized chunk of the

band, much like that on the Flex Radio control panel.  I’d also like to see the

digital radio circuitry and computer interface built inside the case, along with

provision to add an optional 100W amplifier, mounted to the back of the case.

My ideal situation would be to have the amplifier easily detachable from the rear

of the radio with a separate power input for it.  That would allow using the radio

as a portable, battery powered unit without the bulk or weight of the amp and to

have the higher power when used in the shack.  Maybe even a lightweight

detachable Lithium-ion battery pack for the QRP radio that would replace the

amplifier when used in portable mode?  ( I can dream, can’t I?)

 

            I have seen a radio designed by a Polish ham that had what appeared to be

a wider ranged panadaptor and waterfall display with all the works on 3 PC Boards

and packed into a very compact extruded aluminum case.  It had all the bells and whistles

but unfortunately, the display was a 2.8” unit and mounted onto the front PCBoard by

plugging it’s 2 rows of pins into two matching rows of sockets on the PCB.  There was

physically no space  to put a larger display on it.  A larger display would have covered the

PC Board mounted controls and other components.  For that reason, I decided not to pursue it.

 

            Good luck with this project and please keep the group apprised of your progress!

 

Thanks & 73,

 

Gary, WA2BAU

 

 

 

 

Hi Arv:

 

The contract for this book is done, but I'm always interested in finding new things to work with. Al and I hope this book will encourage others to take what we've done and run with it. What I really want to do next is develop a 1-20W SDR rig (CW, SSB, digital) that has a built in 7" touch screen with a "real" panadapter (not one with a 15KHz bandspread). I love my QRP rigs, but if I hear Yemen on the air, out comes the 20W Big Guns!

 

You might consider joining my SoftwareControllerHamRadio group, as it's an active group with lots of ideas.

 

If you have some ideas, I'd love to hear them!

 

Jack, W8TEE

 

 

Re: Adjusting pa bias (RV3) blows one of the final #ubitx

 

Try adjusting the drive  control VR1 and see..

Raj


At 29/11/2019, you wrote:

I had a Bourne 10k single turn lying around my shack which i used. I also replaced the blows IRF 510 today .

[]
Rx only consumes 150ma. TX no modulation takes 350mA. Adjusted pa bias 100mA from each IRF510. So max consumption(no modulation) is 550-560ma .
While speaking to mic there is no significant increase in current. Max 600-650mA. Output power measured on my swr meter is 2-3watt max with me shouting into the PTT on 40m . Is this normal?

Re: Taa-Daa

Jack, W8TEE
 

I appreciate and understand that, and I know you're not alone. There may be a way to make everyone happy. Al and I are checking an idea out...If it proves viable, we will report it.


Jack, W8TEE

On Friday, November 29, 2019, 3:21:28 PM EST, Richard Spohn <wb2gxm@...> wrote:


Guess you won't listen to me but I am totally into through-hole, I do
not like SMD at all. -- Rich WB2GXM

On 11/29/19, Jack, W8TEE via Groups.Io <jjpurdum=yahoo.com@groups.io> wrote:
>  Mornin' Jim:
> Al and I have talked about this at length and, given what we read over the
> past 24 hours, I'm almost certain we will do SMD boards. I doubt we will do
> two versions of the boards and I also doubt that we will release the Gerber
> files. Al and I have invested 17 months and many 12 hour days working on the
> book and we know that our expected hourly wage will be somewhere around
> $0.50/hour. QRP Guys will be selling the boards at reasonable cost and it's
> one way that we might get some revenue from people who don't pay for the
> book. (My last two publishers agree that for every book I sell, 3 are ripped
> off through torrent sites.)
> For those who may not have seen it, if you haven't tried working with SMD
> devices, I encourage you to spend $2 and buy a practice kit. This one is
> eBay 172645304752
>
>
> Our boards will use the 1206 sized SMD, which you can see their size in the
> above photo. I also think this video: How to Solder SMD Components!
>
> |
> |
> |
> |  |  |
>
>  |
>
>  |
> |
> |  |
> How to Solder SMD Components!
>
> In this video, I will show you how to solder SMD components using soldering
> iron as well as using hot air. In la...
>  |
>
>  |
>
>  |
>
>  is very good in showing what SMD are and how to solder them. As to the
> cost, a 2000 SMD resistor assortment with 50 values is less than $10. Caps
> are a little more expensive, but $10 still buys 320 pieces with about 16
> different values. Electronic Parts Online Store - Tayda Electronics sells
> quantity 1 1206 resistors for $0.01 each and they are fairly fast
>
>
> |
> |
> |
> |  |  |
>
>  |
>
>  |
> |
> |  |
> Electronic Parts Online Store - Tayda Electronics
>
>
>  |
>
>  |
>
>  |
>
>
> in shipping products as they have a warehouse in CO.
>
> So, it's going to be SMD's. We'll know more about the costs when we start to
> get estimates on the boards, as their size will vary. We will also
> investigate boards with the SMD parts in place, which will leave only
> "large" pieces (e.g., IDC connectors, voltage regulators, etc.) left to do
> on the boards. That's a little riskier, since we have no idea which products
> will be the "most built". More on that much later.
>
> Jack, W8TEE
>
>
>
>
>    On Friday, November 29, 2019, 1:50:11 AM EST, Jim Pruitt
> <jpruitt67@...> wrote:
>
>  Hello Jack.
>
>  Are you taking a poll?  You might actually make a Groups.io poll asking
> your question.  Yes,  I know, there will be lots of people that think they
> are participating in the poll by posting their comment and why they chose
> that particular thing but a poll would make it easier for you.
>
>  My vote is for smt pc boards but you might also consider making 2 versions,
> one through hole and the other as smt.  I know that would be more work but
> would appease both.  I am almost 71 years old and have no fear of smt (well,
> some fear anyway as I currently have a project -RadioBerry that uses a
> LFPGA144 Intel chip and a AD9866 QFN64 and no option to drag solder--and do
> not like drag soldering).  I well know that many parts are no longer
> available in through hole.  Many that are available are not stocked by
> DigiMouse or have a 10,000 minimum order (OK, usually 1000 but that is still
> more than most of us can afford--even if we had an outlet for the extra
> 999).  If we as a group start finding that projects are only available in
> smt versions then it might force us as a whole to embrace or at least try
> smt.  The other option would be to make the gerbers available (for the smt
> version) and tell us we can submit out orders to JLCSteeedPCBWay and request
> assembly (of the smt parts) and how to place that order since the smt parts
> would not normally be included in a board order but these outfits do
> assembly and preassembly...at a price.
>
>  I think if the various projects use SOCI8 chips that it would be easier for
> us old farts to figure out that it aint that bad!  I would not layout a
> board for the RadioBerry and its LFCSP144 (or whatever that 144 pin fpga is
> called) on a 5/8" square then we would all run in terror!
>
>  In summary, I vote for smt if both are not an option.  Even if it is an
> option I would still buy the smt version over the through hole because I
> know how hard it is getting to find many through hole parts.
>
>  Thank you.
>
>  Jim Pruitt
>  WA7DUY
>
>
>  On 11/28/2019 1:41 PM, jjpurdum via Groups.Io wrote:
>
>
>  While they are editing the book, Al and I will be making PCB's for all but
> the most trivial of the projects. One thing we go back and forth about is
> whether to do the boards for through-hole or SMD parts. We both want to do
> SMD, but we also know a lot of people are afraid of SMD's. My feeling: If,
> at my age, I can work with  SMD's, anyone can. Also, the cost is
> significantly lower, too. On the other hand, a lot of hams won't even try to
> use an SMD board. It's not going to be a major revenue source for us anyway,
> so we're wondering what people actually want. Manufacturing an SMD board is
> a little less expensive and, ceteris paribus, can be a little smaller. I
> would be interested in hearing what the group thinks on the matter.
>  Jack, W8TEE
>
>      On Thursday, November 28, 2019, 2:03:37 PM EST, Gwen Patton
> <ardrhi@...> wrote:
>
>      It all looks wonderful, Jack! I'm looking forward to a couple of those,
> but mostly the luggable double-double. I want to build one, and mount it so
> I can hoist it on a mast held by a drive-on mast mount in my van. That way,
> I can operate from the van out in the field, from parks and such, and not
> have to get out in the weather. I have lots of radios I can take (and
> usually do), but I need to get or build a reasonable amp that can run off
> power from the van easily and safely. Maybe a 50W. With the remote control,
> that loop looks like exactly what I need, along with some of the wires I can
> hang from the same mast (when I'm not using the loop, of course).
>  I repurposed an Acer Chromebook CB3-111 for field use. I replaced the
> ChromeOS with GalliumOS, a distro of Linux based on Xubuntu. It works great,
> and I just got JS8Call working on it this morning. I've got FLDigi and FLRig
> installed, Qtel, a very well done Echolink client, and some  various and
> sundry other programs, like a flavor of NEC for antenna modeling (which I
> still need to learn how to use), and a decent logger. I can tether it to my
> phone via WiFi and get on the Internet, and access QRZ for lookups -- my
> battery selection was such that I can also power the phone, and once I get a
> cable built for it, the Chromebook as well. It'll streamline my field ops a
> lot, reducing what I need to carry to do some serious operating!
>  I can't wait for that book to come out! It looks great, and you and Al
> deserve some serious applause for it.
>  73, Gwen, NG3P
>    On Thu, Nov 28, 2019 at 1:44 PM jjpurdum via Groups.Io
> <jjpurdum=yahoo.com@groups.io> wrote:
>
>    All:
>  Most of you are aware that Al (AC8GY) and I are working on a sequel to the
> Projects book titled Microcontroller Projects for Amateur Radio. We changed
> the title because we have not limited ourselves to the Arduino family of
> processors, but include the STM32F1, ESP32, and the Teensy 4.0 controllers.
> All can be (and, for the book, are) programmed  in the Arduino IDE using C.
> Today, Al and I finished writing the narrative for the last chapter of the
> book.
>
>  We have signed with the ARRL to publish the book, and one reason for
> signing with them is that they had enough faith to sign a contract with us,
> but allow us to finish all of the projects before submitting the chapters.
> That way, Al and I could work in the absence of a publisher breathing down
> our necks. That's the good news. The bad news is that, despite us beating
> our Jan 1, 2020, deadline, they are putting the new License manual ahead of
> us in the production queue. (Boo !) I asked if it would be ready by FDIM and
> they said no. That was a huge disappointment, but it is what it is. I'm
> still hopeful it will be out before the end of the second quarter of next
> year. Still, we feel like a 15 month stone has been lifted off our backs.
>
>  Anyway, what follows are some photos of most of the projects. I'll keep
> everyone posted on publishing details when I know them.
>
>  Jack, W8TEE Al, AC8GY
>
>  two channel DSP (there's a preprocessor project, too)
>    Signal generator, up to 30MHz.
>
>  All kinds of test functions (i.e., different wave forms at  various
> voltages)
>
>  30W mini DL with watt meter (almost fits in a shirt pocket)
>
>  Old computer PS redesigned for powering the projects.
>
>  Morse Code Tutor (the subject of my FDIM presentation  this year)
>
>  Antenna tuner with SWR display and scan function (very useful for trimming
> antennas)
>
>  Our Mag loop with remote controller (tested to 100' and used  in Field
> Day).
>
>
>
>
>
>
>  --
>
>  -+-+-+-+-
>  Jenny Everywhere's Infinite: Quark Time
http://quarktime.net
>
>
>
>
>



--
Jack, W8TEE

Re: Book TOC

Jack, W8TEE
 

Hi Arv:

The contract for this book is done, but I'm always interested in finding new things to work with. Al and I hope this book will encourage others to take what we've done and run with it. What I really want to do next is develop a 1-20W SDR rig (CW, SSB, digital) that has a built in 7" touch screen with a "real" panadapter (not one with a 15KHz bandspread). I love my QRP rigs, but if I hear Yemen on the air, out comes the 20W Big Guns!

You might consider joining my SoftwareControllerHamRadio group, as it's an active group with lots of ideas.

If you have some ideas, I'd love to hear them!

Jack, W8TEE

On Friday, November 29, 2019, 4:20:02 PM EST, Arv Evans <arvid.evans@...> wrote:


Jack

I am looking forward to your latest book.  

I had used Google to search for your new book, but it found the older book and reported it as the new one.  Obviously Google Search is a double-edged sword.

Are you looking for others projects as inputs for this book...or for a third book on the subject?

Farhan's uBITEX opened the door to homebuilt rigs and test equipment that incorporates microcontrollers.  Your books are documenting that evolution, and suggesting paths for it to take. 

Arv
_-_




On Fri, Nov 29, 2019, 12:30 PM Jack, W8TEE via Groups.Io <jjpurdum=yahoo.com@groups.io> wrote:
The book you found is the one I wrote about 5 years ago. Note that it's title is Arduino Projects for Amateur Radio. Because that book did fairly well, and there has been a real advance in some of the microcontrollers, we are not limiting ourselves to the Arduino family of microcontrollers this time. Instead, we are limiting it to those that can be programmed within the Arduino (free) IDE. Therefore, the new book is titled Microcontroller Projects for Amateur Radio. This time we have projects that use touch screen displays and the STM32F1, ESP32, and Teensy 4.0 microcontrollers. We do things in this book that simply were not possible in the first book simply because the resource depth and clock speed wasn't there.

Sorry for the confusion!

Jack, W8TEE

On Friday, November 29, 2019, 1:06:28 PM EST, Arv Evans <arvid.evans@...> wrote:


Jack

I am confused (my normal state!).  Your email says the book is not yet in publication but
It is already available in paperback and via Kindle.


Arv
_._


On Fri, Nov 29, 2019 at 10:38 AM Jack, W8TEE via Groups.Io <jjpurdum=yahoo.com@groups.io> wrote:
The book is not in print yet. In fact, it will be published by the ARRL and they say it won't be done until the second quarter of 2020. The title will be Microcontroller Projects for Amateur Radio. Amazon will likely carry it, but we're encouraging people to support the ARRL directly if possible.

Jack, W8TEE

On Friday, November 29, 2019, 12:24:15 PM EST, John Faivre <wa9sgd@...> wrote:


What is the title of the new book? I looked on amazon and didn’t see anything with those projects
--
thanks
John Faivre WA9SGD

--
Jack, W8TEE


--
Jack, W8TEE

--
Jack, W8TEE

Re: Book TOC

Jack, W8TEE
 

I've never self-published, mainly because of the difficulty in getting market presence. In this case, McGraw-Hill who published the original Projects book did absolutely nothing to promote the book, so there was no way that I was going to use them again. The ARRL does promote its books, so that was a major consideration. The other factor is that I want this to become a reference book...a springboard for others to enhance, and an ebook just doesn't seem to work in that arena...I wanted a book I could hold in my hand, and that's not cheap.

Jack, W8TEE

On Friday, November 29, 2019, 7:25:11 PM EST, Gordon Gibby <docvacuumtubes@...> wrote:


Hey Jack, what were the most important factors that made you decide to go with ARRL instead of just publishing on Amazon yourself?


On Nov 29, 2019, at 14:30, Jack, W8TEE via Groups.Io <jjpurdum@...> wrote:

The book you found is the one I wrote about 5 years ago. Note that it's title is Arduino Projects for Amateur Radio. Because that book did fairly well, and there has been a real advance in some of the microcontrollers, we are not limiting ourselves to the Arduino family of microcontrollers this time. Instead, we are limiting it to those that can be programmed within the Arduino (free) IDE. Therefore, the new book is titled Microcontroller Projects for Amateur Radio. This time we have projects that use touch screen displays and the STM32F1, ESP32, and Teensy 4.0 microcontrollers. We do things in this book that simply were not possible in the first book simply because the resource depth and clock speed wasn't there.

Sorry for the confusion!

Jack, W8TEE

On Friday, November 29, 2019, 1:06:28 PM EST, Arv Evans <arvid.evans@...> wrote:


Jack

I am confused (my normal state!).  Your email says the book is not yet in publication but
It is already available in paperback and via Kindle.


Arv
_._


On Fri, Nov 29, 2019 at 10:38 AM Jack, W8TEE via Groups.Io <jjpurdum=yahoo.com@groups.io> wrote:
The book is not in print yet. In fact, it will be published by the ARRL and they say it won't be done until the second quarter of 2020. The title will be Microcontroller Projects for Amateur Radio. Amazon will likely carry it, but we're encouraging people to support the ARRL directly if possible.

Jack, W8TEE

On Friday, November 29, 2019, 12:24:15 PM EST, John Faivre <wa9sgd@...> wrote:


What is the title of the new book? I looked on amazon and didn’t see anything with those projects
--
thanks
John Faivre WA9SGD

--
Jack, W8TEE


--
Jack, W8TEE

--
Jack, W8TEE

Re: Book TOC

Jack, W8TEE
 

I'm sorry, but I can't do that. My FDIM talk is the basis of my Morse Code Tutuor, which is part of Chapter 7 in the book and I took that chapter as the starting point for my talk. I think that talk is floating around somewhere. I'll see if I can find that, as it was before we signed with the ARRL.

Jack, W8TEE

On Friday, November 29, 2019, 7:29:13 PM EST, Troy - K4JDA <troy.davis@...> wrote:


Any chance you might publish a sample chapter as a teaser??  😁

--
Jack, W8TEE

Re: Adjusting pa bias (RV3) blows one of the final #ubitx

Harry Latterman
 

OK Clark,

I have used wires like that for years and sometimes it is easy to mix the hot with the ground do to the markings on the wire... That one sure looked like the hot wire was on the ground pole... Good luck with your radio. I will be starting working with my V3 and making it a modified V4 in a couple of months..

73 Harry K7ZOV

On Friday, November 29, 2019, 4:08:40 PM MST, Clark Martin <kk6isp@...> wrote:


It’s the black wire connected to the black terminal. It just has a strip of red from where it separated from the red wire.

Clark Martin
KK6ISP

On Nov 29, 2019, at 11:02 AM, Harry Latterman via Groups.Io <harrylatterman@...> wrote:

Why do you have the + VDC wire hooked to the negative power post???

Re: Book TOC

Troy - K4JDA
 

Any chance you might publish a sample chapter as a teaser??  😁

Re: Book TOC

Gordon Gibby
 

Hey Jack, what were the most important factors that made you decide to go with ARRL instead of just publishing on Amazon yourself?


On Nov 29, 2019, at 14:30, Jack, W8TEE via Groups.Io <jjpurdum@...> wrote:

The book you found is the one I wrote about 5 years ago. Note that it's title is Arduino Projects for Amateur Radio. Because that book did fairly well, and there has been a real advance in some of the microcontrollers, we are not limiting ourselves to the Arduino family of microcontrollers this time. Instead, we are limiting it to those that can be programmed within the Arduino (free) IDE. Therefore, the new book is titled Microcontroller Projects for Amateur Radio. This time we have projects that use touch screen displays and the STM32F1, ESP32, and Teensy 4.0 microcontrollers. We do things in this book that simply were not possible in the first book simply because the resource depth and clock speed wasn't there.

Sorry for the confusion!

Jack, W8TEE

On Friday, November 29, 2019, 1:06:28 PM EST, Arv Evans <arvid.evans@...> wrote:


Jack

I am confused (my normal state!).  Your email says the book is not yet in publication but
It is already available in paperback and via Kindle.


Arv
_._


On Fri, Nov 29, 2019 at 10:38 AM Jack, W8TEE via Groups.Io <jjpurdum=yahoo.com@groups.io> wrote:
The book is not in print yet. In fact, it will be published by the ARRL and they say it won't be done until the second quarter of 2020. The title will be Microcontroller Projects for Amateur Radio. Amazon will likely carry it, but we're encouraging people to support the ARRL directly if possible.

Jack, W8TEE

On Friday, November 29, 2019, 12:24:15 PM EST, John Faivre <wa9sgd@...> wrote:


What is the title of the new book? I looked on amazon and didn’t see anything with those projects
--
thanks
John Faivre WA9SGD

--
Jack, W8TEE


--
Jack, W8TEE

Re: Adjusting pa bias (RV3) blows one of the final #ubitx

Clark Martin
 

It’s the black wire connected to the black terminal. It just has a strip of red from where it separated from the red wire.

Clark Martin
KK6ISP

On Nov 29, 2019, at 11:02 AM, Harry Latterman via Groups.Io <harrylatterman@...> wrote:

Why do you have the + VDC wire hooked to the negative power post???

Re: CEC 5" Enhanced Nextion Files #images

Mark Hatch
 

Yup. Might also need a power supply upgrade in addition to getting the right Nextion software installed. I found a high current 5v and relocated the radiuno regulator to this one. Mounted on rear panel for heat sink. 


73
Mark

Re: CEC 5" Enhanced Nextion Files #images

Murray Wills (ZL2IQ)
 

This is possibly a power supply problem. You need to power the 5” screen from a different power supply than the 3 line screen as it draws too much current. I used a $9 step down converter from 12v to 5v capable of handling the current drain.

73 Murray ZL2IQ


From: BITX20@groups.io <BITX20@groups.io> on behalf of Ron via Groups.Io <ron@...>
Sent: Saturday, November 30, 2019 7:32:02 AM
To: BITX20@groups.io <BITX20@groups.io>
Subject: [BITX20] CEC 5" Enhanced Nextion Files #images
 
Need help with the CEC Nextion Enhanced 5" file.
I downloaded both the HMI and TFT ready to go file and no matter whether I compile the file
In the Nextion editor or use an SD card to install the TFT card I get a 1" image on the display.

Am I the only one seeing this or am I doing something wrong.
It is a genuine Nextion Enhanced display.

Am I doing something wrong or have the files been messed with?
Thanks for any help.
W4DNQ

Re: CEC 5" Enhanced Nextion Files #images

Mark Hatch
 

Probably downloading the original ones. Looks in the files section under AJ6CU. 


73
Mark
AJ6CU

Re: Book TOC

Arv Evans
 

Jack

I am looking forward to your latest book.  

I had used Google to search for your new book, but it found the older book and reported it as the new one.  Obviously Google Search is a double-edged sword.

Are you looking for others projects as inputs for this book...or for a third book on the subject?

Farhan's uBITEX opened the door to homebuilt rigs and test equipment that incorporates microcontrollers.  Your books are documenting that evolution, and suggesting paths for it to take. 

Arv
_-_




On Fri, Nov 29, 2019, 12:30 PM Jack, W8TEE via Groups.Io <jjpurdum=yahoo.com@groups.io> wrote:
The book you found is the one I wrote about 5 years ago. Note that it's title is Arduino Projects for Amateur Radio. Because that book did fairly well, and there has been a real advance in some of the microcontrollers, we are not limiting ourselves to the Arduino family of microcontrollers this time. Instead, we are limiting it to those that can be programmed within the Arduino (free) IDE. Therefore, the new book is titled Microcontroller Projects for Amateur Radio. This time we have projects that use touch screen displays and the STM32F1, ESP32, and Teensy 4.0 microcontrollers. We do things in this book that simply were not possible in the first book simply because the resource depth and clock speed wasn't there.

Sorry for the confusion!

Jack, W8TEE

On Friday, November 29, 2019, 1:06:28 PM EST, Arv Evans <arvid.evans@...> wrote:


Jack

I am confused (my normal state!).  Your email says the book is not yet in publication but
It is already available in paperback and via Kindle.


Arv
_._


On Fri, Nov 29, 2019 at 10:38 AM Jack, W8TEE via Groups.Io <jjpurdum=yahoo.com@groups.io> wrote:
The book is not in print yet. In fact, it will be published by the ARRL and they say it won't be done until the second quarter of 2020. The title will be Microcontroller Projects for Amateur Radio. Amazon will likely carry it, but we're encouraging people to support the ARRL directly if possible.

Jack, W8TEE

On Friday, November 29, 2019, 12:24:15 PM EST, John Faivre <wa9sgd@...> wrote:


What is the title of the new book? I looked on amazon and didn’t see anything with those projects
--
thanks
John Faivre WA9SGD

--
Jack, W8TEE


--
Jack, W8TEE

Re: Taa-Daa

Richard Spohn
 

Guess you won't listen to me but I am totally into through-hole, I do
not like SMD at all. -- Rich WB2GXM

On 11/29/19, Jack, W8TEE via Groups.Io <jjpurdum=yahoo.com@groups.io> wrote:
Mornin' Jim:
Al and I have talked about this at length and, given what we read over the
past 24 hours, I'm almost certain we will do SMD boards. I doubt we will do
two versions of the boards and I also doubt that we will release the Gerber
files. Al and I have invested 17 months and many 12 hour days working on the
book and we know that our expected hourly wage will be somewhere around
$0.50/hour. QRP Guys will be selling the boards at reasonable cost and it's
one way that we might get some revenue from people who don't pay for the
book. (My last two publishers agree that for every book I sell, 3 are ripped
off through torrent sites.)
For those who may not have seen it, if you haven't tried working with SMD
devices, I encourage you to spend $2 and buy a practice kit. This one is
eBay 172645304752


Our boards will use the 1206 sized SMD, which you can see their size in the
above photo. I also think this video: How to Solder SMD Components!

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How to Solder SMD Components!

In this video, I will show you how to solder SMD components using soldering
iron as well as using hot air. In la...
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 is very good in showing what SMD are and how to solder them. As to the
cost, a 2000 SMD resistor assortment with 50 values is less than $10. Caps
are a little more expensive, but $10 still buys 320 pieces with about 16
different values. Electronic Parts Online Store - Tayda Electronics sells
quantity 1 1206 resistors for $0.01 each and they are fairly fast


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Electronic Parts Online Store - Tayda Electronics


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in shipping products as they have a warehouse in CO.

So, it's going to be SMD's. We'll know more about the costs when we start to
get estimates on the boards, as their size will vary. We will also
investigate boards with the SMD parts in place, which will leave only
"large" pieces (e.g., IDC connectors, voltage regulators, etc.) left to do
on the boards. That's a little riskier, since we have no idea which products
will be the "most built". More on that much later.

Jack, W8TEE




On Friday, November 29, 2019, 1:50:11 AM EST, Jim Pruitt
<jpruitt67@...> wrote:

Hello Jack.

Are you taking a poll?  You might actually make a Groups.io poll asking
your question.  Yes,  I know, there will be lots of people that think they
are participating in the poll by posting their comment and why they chose
that particular thing but a poll would make it easier for you.

My vote is for smt pc boards but you might also consider making 2 versions,
one through hole and the other as smt.  I know that would be more work but
would appease both.  I am almost 71 years old and have no fear of smt (well,
some fear anyway as I currently have a project -RadioBerry that uses a
LFPGA144 Intel chip and a AD9866 QFN64 and no option to drag solder--and do
not like drag soldering).  I well know that many parts are no longer
available in through hole.  Many that are available are not stocked by
DigiMouse or have a 10,000 minimum order (OK, usually 1000 but that is still
more than most of us can afford--even if we had an outlet for the extra
999).  If we as a group start finding that projects are only available in
smt versions then it might force us as a whole to embrace or at least try
smt.  The other option would be to make the gerbers available (for the smt
version) and tell us we can submit out orders to JLCSteeedPCBWay and request
assembly (of the smt parts) and how to place that order since the smt parts
would not normally be included in a board order but these outfits do
assembly and preassembly...at a price.

I think if the various projects use SOCI8 chips that it would be easier for
us old farts to figure out that it aint that bad!  I would not layout a
board for the RadioBerry and its LFCSP144 (or whatever that 144 pin fpga is
called) on a 5/8" square then we would all run in terror!

In summary, I vote for smt if both are not an option.  Even if it is an
option I would still buy the smt version over the through hole because I
know how hard it is getting to find many through hole parts.

Thank you.

Jim Pruitt
WA7DUY


On 11/28/2019 1:41 PM, jjpurdum via Groups.Io wrote:


While they are editing the book, Al and I will be making PCB's for all but
the most trivial of the projects. One thing we go back and forth about is
whether to do the boards for through-hole or SMD parts. We both want to do
SMD, but we also know a lot of people are afraid of SMD's. My feeling: If,
at my age, I can work with SMD's, anyone can. Also, the cost is
significantly lower, too. On the other hand, a lot of hams won't even try to
use an SMD board. It's not going to be a major revenue source for us anyway,
so we're wondering what people actually want. Manufacturing an SMD board is
a little less expensive and, ceteris paribus, can be a little smaller. I
would be interested in hearing what the group thinks on the matter.
Jack, W8TEE

On Thursday, November 28, 2019, 2:03:37 PM EST, Gwen Patton
<@NG3P> wrote:

It all looks wonderful, Jack! I'm looking forward to a couple of those,
but mostly the luggable double-double. I want to build one, and mount it so
I can hoist it on a mast held by a drive-on mast mount in my van. That way,
I can operate from the van out in the field, from parks and such, and not
have to get out in the weather. I have lots of radios I can take (and
usually do), but I need to get or build a reasonable amp that can run off
power from the van easily and safely. Maybe a 50W. With the remote control,
that loop looks like exactly what I need, along with some of the wires I can
hang from the same mast (when I'm not using the loop, of course).
I repurposed an Acer Chromebook CB3-111 for field use. I replaced the
ChromeOS with GalliumOS, a distro of Linux based on Xubuntu. It works great,
and I just got JS8Call working on it this morning. I've got FLDigi and FLRig
installed, Qtel, a very well done Echolink client, and some various and
sundry other programs, like a flavor of NEC for antenna modeling (which I
still need to learn how to use), and a decent logger. I can tether it to my
phone via WiFi and get on the Internet, and access QRZ for lookups -- my
battery selection was such that I can also power the phone, and once I get a
cable built for it, the Chromebook as well. It'll streamline my field ops a
lot, reducing what I need to carry to do some serious operating!
I can't wait for that book to come out! It looks great, and you and Al
deserve some serious applause for it.
73, Gwen, NG3P
On Thu, Nov 28, 2019 at 1:44 PM jjpurdum via Groups.Io
<jjpurdum=yahoo.com@groups.io> wrote:

All:
Most of you are aware that Al (AC8GY) and I are working on a sequel to the
Projects book titled Microcontroller Projects for Amateur Radio. We changed
the title because we have not limited ourselves to the Arduino family of
processors, but include the STM32F1, ESP32, and the Teensy 4.0 controllers.
All can be (and, for the book, are) programmed in the Arduino IDE using C.
Today, Al and I finished writing the narrative for the last chapter of the
book.

We have signed with the ARRL to publish the book, and one reason for
signing with them is that they had enough faith to sign a contract with us,
but allow us to finish all of the projects before submitting the chapters.
That way, Al and I could work in the absence of a publisher breathing down
our necks. That's the good news. The bad news is that, despite us beating
our Jan 1, 2020, deadline, they are putting the new License manual ahead of
us in the production queue. (Boo !) I asked if it would be ready by FDIM and
they said no. That was a huge disappointment, but it is what it is. I'm
still hopeful it will be out before the end of the second quarter of next
year. Still, we feel like a 15 month stone has been lifted off our backs.

Anyway, what follows are some photos of most of the projects. I'll keep
everyone posted on publishing details when I know them.

Jack, W8TEE Al, AC8GY

two channel DSP (there's a preprocessor project, too)
Signal generator, up to 30MHz.

All kinds of test functions (i.e., different wave forms at various
voltages)

30W mini DL with watt meter (almost fits in a shirt pocket)

Old computer PS redesigned for powering the projects.

Morse Code Tutor (the subject of my FDIM presentation this year)

Antenna tuner with SWR display and scan function (very useful for trimming
antennas)

Our Mag loop with remote controller (tested to 100' and used in Field
Day).






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