Date   
Re: CEC 5" Enhanced Nextion Files #images

Mark Hatch
 

Sorry, one more comment, Ron (W4DNQ) stated he had an enhanced display. However, the status line on bottom says he is compiling for a basic. An Enhanced Nextion will not read the tft file for a Basic. Think the GPU is even different between the two....

Ron, any reason you cannot use the tft files I uploaded?

73
Mark
AJ6CU

Re: CEC 5" Enhanced Nextion Files #images

Mark Hatch
 

Actually, I think I see the problem, but not sure why....

If you look at the bottom message line you see the specific model number being compiled for along with Flash, RAM and frequency.

Here is how that line compares to mine:

                                             Flash       Ram.       Freq
Mine.   NX:8048K050_011.    32M.     8192B.     108M.  5" Enhanced
OP.      NX:8048T050_011.     16M.     3584B.     48M.    5" Basic

What is really strange is the I have no problem compiling it for the 5" Basic....  But both the OP and Justin (K5AXL) reported that they needed to changed to enhanced to compile.

Perhaps we should compare version for the Nextion editor...  Again, mine is V0.53

73
Mark
AJ6CU

Re: CEC 5" Enhanced Nextion Files #images

Mark Hatch
 

Joshi,

I just downloaded the December 1.hmi, and recompiled it both for basic and enhanced 5" screen. Compilation successful. Got one warning on an overlap of a component on factoryrecover (that I don't remember), but other than that no problems.

I am running v0.53 of the Nextion editor. Any chance you have something different?

BTW: The "December" version fixes the "9" character in the manual frequency entry that should have been a "0"

73
Mark
AJ6CU

Re: Book TOC

Dave New
 

Jack,

Wish I had done that in 1970 when I got my Novice license, but the 'ol crystal ball had no idea that I would still be doing this almost 50 years later.

I completed my quarterly payments for a life membership a couple of years ago, figuring that if lived another 20 years, it would be a good deal.

Funny, how being near retirement changes your views on things like that...

Thanks for the walk down memory lane with your CP/M, Basic-80 and C titles.  Been there, done that, got all the arrows in my back.

73,

-- Dave, N8SBE

-------- Original Message --------
Subject: Re: [BITX20] Book TOC
From: "Jack, W8TEE via Groups.Io" <jjpurdum@...>
Date: Sat, November 30, 2019 10:33 am
To: <BITX20@groups.io>

When I got my first full-time teaching job, I bought a Life Membership to the ARRL. I paid $125 in 1970 for it. Probably one of the highest ROI I've ever had!

Jack, W8TEE

On Saturday, November 30, 2019, 10:28:20 AM EST, Robert D. Bowers <n4fbz@...> wrote:


Absolutely right about e-books.  You can use them that way if you can do a word search (in doing, for instance, cultural research) and you can cut-and-paste from the text (for writing papers), but for anything more of a technical nature (with schematics, diagrams, and so on) - it's easier to print out the pages in question - defeating the purpose of the e-book.  (It might work if you have the space for a laptop or big tablet - but even then I'd rather have what I need on paper.)  If the e-book requires a specific reader, all the company has to do is change the reader and you're locked out of the very book you purchased.

I think I even still have an e-book purchased several years ago for reference, that the publisher put a 'disable date' in it - I could use it for a couple of years, but suddenly it wouldn't open any more with a message to re-purchase (a $50-$100 book at that).  No warning about time limits before purchase, I should add (from a big name book selling company, whose readers earned a lot of negative comments when their 'updates' disabled features that were regularly used by people).

I've got a couple of the ARRL books I purchased at a hamfest a few years ago - and would love to have yours - but at least for the next few months, wouldn't have the money (can't even afford ARRL dues for the last few years).  Maybe by the time it's in print we won't be quite so tight.

(Having the diagrams and so on available on CD can be a big help, btw.  VERY useful for searches - then go to the hardcopy for usage.  It's especially useful if you provide code or some sort of software!)

Bob

On 11/29/19 11:57 PM, Jack, W8TEE via Groups.Io wrote:
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

--
Jack, W8TEE

Re: V4 TX selective failure #ubitx-help #cat

Don - KM4UDX
 

Ha! A great analogy.  Thank you!!

Getting NanoNVA under my tree.  A scope would force me to learn sooo much more...

I'm going to focus on physically integrating my Atomic Pi SBC into my uBITX "case".  And I have a temperature switch and fans to add..and a TX/RX led, and...

Because the uBITX is working perfectly, I must get back to trying to break it.

Hahah

Don
KM4UDX

P.S. You people are the best!!!

Re: How to get rid of Local FM broadcast stations #ubitx

Gavin
 

Ah, it looks like both these stations also have AM counterparts, at 1490 kHz and 1210 kHz. Does that change things?

Re: Taa-Daa

Dave New
 

Gordon,

If you are looking for an inexpensive Technician Class guide, check out this free PDF download:


Dan is in my local radio club, and does a fantastic job of teaching a one-day Technician Class, based on this book.

He's taught this class at many venues, including regional ham fests and Xenia/Dayton.

If you check out this page:


You will see all the other formats available, and also General and Extra class guides (non-free -- only the Tech guide is free), and even flash cards.

73,

-- Dave, N8SBE

-------- Original Message --------
Subject: Re: [BITX20] Taa-Daa
From: "Gordon Gibby" <docvacuumtubes@...>
Date: Sat, November 30, 2019 9:14 am
To: BITX20@groups.io

yup...you are a FAR bigger writer than I will ever be, and hence you may not even NEED a publisher.   You put something on AMAZON....and people find it.   Word of Mouth also travels incredibly far.   I have never advertised (formally) ANYTHING that I've written.   Many of them are highly technical, just to try and help ARES groups develop professionalism in exercises, and they benefit people in places I neveer would have expected.   It is certainly fine to hep out the ARRL, but they probably need YOU more than you need THEM.   They have a business to run, and this is a good income for them to keep their other highly worthy efforts going....but I can't ask high school kids to fork out enough to buy a qrp rig just to buy a license manual.  So we will create our own "library" or else I'll go to writing and within a year have my own License Manual that I can use far more cheaply.    


The biggest benefit the ARRL has is a HUGE reservoir of very very knowledgeable people who recognize their worth and will continue to donate wisdom and knowledge, for the good of all of us.   Its an important trust, and the ARRL needs to steward it wisely.   I don't mind paying a fair sum for a text on programming, but we need to make entry texts inexpensive.   The ARRL recognized that and released their EC001 as free pdf's which was a huge help to me in the Field Course we did in the summer, and the next one we will do end of Feburary.  

Gordon


On Sat, Nov 30, 2019 at 7:52 AM Jack, W8TEE via Groups.Io <jjpurdum=yahoo.com@groups.io> wrote:
As I mentioned, I didn't even know about it until now! Back "in the ole days", the key to a successful book was finding a publisher who could get shelf space for your book in Daltons, Borders, Noble, and other book stores. The C Programming Guide sold 237,000 copies, and that doesn't include the translation numbers (e.g., Chinese, German, Dutch, etc.) Today, most of the major booksellers are toast, so it probably doesn't matter as much now.

Jack, W8TEE

On Saturday, November 30, 2019, 7:42:04 AM EST, Gordon Gibby <docvacuumtubes@...> wrote:


Wow, jack, that is an impressive list!!!  Did you ever try the amazon route?
I was actually wondering what had been published by Mad Radio Modder, but thanks for that list!!  Lots of interesting things there.

Gordon


On Sat, Nov 30, 2019 at 7:38 AM Jack, W8TEE via Groups.Io <jjpurdum=yahoo.com@groups.io> wrote:
This is a list of the books I've published:

Microcontroller Projects for Amateur Radio, co-authored with Al Peter, (forthcoming, 2020).
Arduino Projects for Amateur Radio, co-authored with Dennis Kidder, McGraw-Hill, Nov, 2014.
Beginning C Programming for the Arduino, Nov., 2012, Apress. (Second edition released in July, 2015)
Beginning Object Oriented Programming with C#, Wrox Publishing, Oct, 2012.

C# 3.0, An Introduction to Object Oriented Programming, Wrox Publishing, April, 2008. (Translated into Chinese and Hindi.)
Introduction to Object-Oriented Programming Using C#, co-authored with Kyle Lutes and Alka Harriger, Thompson Course Technology, March, 2005.

Visual Basic .NET Primer Plus, Howard Sams, April, 2003. (Translated into Chinese, Korean, Polish)
Visual Basic 6 Super Bible, co-author, Howard Sams, April, 1999.
Accounting & Finance Developer’s Guide, Howard Sams, April, 1995.
Guide to C Programming, Ziff Davis Press, June, 1992 (Translated into 2 languages).
Quick C Programming, Howard Sams, Dec., 1990.
The First Book of Harvard Graphics, Howard Sams, March, 1990.
C Programmer's Toolkit, Que Corp., Sept., 1989, 2nd edition, Dec, 1991.
C Programming Guide, Que Corp., 1983. (Translated into 10 languages. New York Times Best Seller’s List, Technical Books, 1983), Third edition, Nov., 1988.
C Standard Library, co-authored with T. Leslie, Que Corp., Que Corp., 1987.
C Self Study Guide, Que Corp., 1985.

C Programmer's Library, co-authored with T. Leslie and A. Stegemoller. (Translatedinto three languages.) Que Corp., 1983.
CP/M Software Finder, (co-authored with D. Cobb and D. Summe), Que Corp., 1983.
Basic-80 and CP/M: A Programming Textbook. Macmillan Publishing, 1983.

Jack Purdum, W8TEE




On Saturday, November 30, 2019, 7:15:02 AM EST, Gordon Gibby <docvacuumtubes@...> wrote:


What’s the name there : how do I find out what you have published?


On Nov 30, 2019, at 06:56, MadRadioModder <madradiomodder@...> wrote:

Same story here.  Amazon is the only way ill publish now...


MRM
 

On Nov 30, 2019, at 4:58 AM, Gordon Gibby <docvacuumtubes@...> 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
<DisasterMinistryRadioCommunicationsHandbook.jpg>
<FinalCover.jpg>

--

…_. _._

--
Jack, W8TEE

--
Jack, W8TEE

Re: V4 TX selective failure #ubitx-help #cat

Evan Hand
 

The hart of this design is the hetrodyning up and down to provide the flexibility and selectivity.  That is why calibration is sooooo important.  There are two fixed points that need to be "hit" to make it work at all:
1 - the 45 MHz roofing filter
2 - the 11 or 12 Mhz (depending on version) "SSB" filter.  

This can only be done with calibration of the 3 clock signals.  The analogy that I think of is that 2 points define a line, and all three of the clocks need to be on that line.  Of course it is more like a snaking curve with the up and down signal manipulation.

I am glad you found your issue.  I would still recommend that you look at the SDR spectrum analyzer software for future use.  It is like using a finishing file where a rasp is needed for some applications but better than no tool at all.  It is also free with what you already have.  The best bet may be to ask Santa for 100 MHz,  or higher, oscilloscope for Christmas. 

73
Evan
AC9TU

Re: V4 TX selective failure #ubitx-help #cat

Don - KM4UDX
 

Why does using this radio lead to so much humiliation?  Can you see where this is going?  Turns out I was trying to "adjust" master calibration and totally dorked it up. And wasn't smart or observant enough to catch my own stinky. 

Thank you Dave an Evan. You are the best. I am an idiot. 

Turns out when you wack your master calibration number (and why so many digits anyway?), you make your uBTIX operate just like mine did. CW RF and CW sidetone work great, but  audio and receive get whacked. 

Given it wasn't working anyway, so I had nothing to lose, I just hit reload factory defaults, and crossed my fingers.  Then I remembered that in Memory Manager I had a backup. So I fired up MM, reloaded the last save fine, and presto, I was back in business.

Proof that I am a very slow learner, I went right back into the tweaking calibration to reduce WSPRnet observed error to +/- 1 hz. 

A great site for tracking your 1 or 2 way WSPR beaconing  is http://wspr.vk7jj.com/


Re: CEC 5" Enhanced Nextion Files #images

Joe Puma
 

Did you make any changes? It’s looks like one of the pages is having a memory overflow. You exceed the memory allocation for file. The issue is coming from the page that is listed right above the error. I started the redesign on that 5” and Mark Hatch finished it off. 


Joe
KD2NFC

Re: CEC 5" Enhanced Nextion Files #images

Justin Phillips K5AXL
 

I am using the Enhanced model btw, you designer might be defaulted to a smaller display, changing it to the appropriate 5" model should let it compile. I believe the error is related to images/sizes greater than the currently selected model can display.

Re: CEC 5" Enhanced Nextion Files #images

Justin Phillips K5AXL
 

Did you set the device model under Device ID? I had to change mine to Enhanced to get it to compile.

Re: V4 TX selective failure #ubitx-help #cat

_Dave_ K0MBT
 

Don, How does your radio work when you have disconnected the sound card? When you are using a mic and regular headphones.
--
73
Dave
k0mbt
Raduino bracket and Ham_Made_Keys

Re: Unexpected Blowing of Fuses on Transmit

 

The only thing I can think of that would suddenly cause high current
is a floating IRF gate. maybe a dry solder on R97/98 or IRF gate leads.

A 2A fuse will need double the current to blow instantly. If I remember
my EE a normal fuse rating is the current that the fuse will survive for
10hours without blowing, at double the rating it will blow in seconds
depending whether it is slo blow or fast!

Read more
https://en.wikipedia.org/wiki/Fuse_(electrical)

Raj

At 01-12-19, you wrote:
Thanks Raj,
Yes, that makes sense.
I'll have a crack at it this afternoon.
Rgards
H

Re: #ubitx #ubitx

Clark Martin
 

hex files are executable images, i.e. you don’t compile them, they’ve already been compiled and linked.  To download it to the arduino you need to use avrdude directly.

Something like:

avrdude -p atmega328p -c arduino -U flash:w:FILENAME.hex

Clark Martin
KK6ISP

On Dec 1, 2019, at 6:30 PM, Mike Short <ai4ns.mike.spam@...> wrote:

I been unsuccessful loading KD8CEC software for the V5. I can’t figure out how to compile and upload the.hex files. I can upload .ino with no issues 
_._,_._,_


Re: Unexpected Blowing of Fuses on Transmit

Gordon Gibby
 

Great work , guys— thanks. 


On Dec 2, 2019, at 00:38, MVS Sarma <mvssarma@...> wrote:

Correct Jerry. 

On Mon, 2 Dec 2019, 10:45 am Jerry Gaffke via Groups.Io, <jgaffke=yahoo.com@groups.io> wrote:
If the fuse blows when you push PTT but before speaking into the mike,
it probably is not mike gain or the RV1 drive setting.
Most likely trouble around the IRF510's somehow.

##########################
You cant have all of 
1. Preset gate more than 100mA drain current,
2. Hi rf drive with q90 collector preset and
3 boosted mic gain with presetbfor modulation level control. 
 
You may have to reduce at two of the locations. 
 
All the best 
 

Re: CEC 5" Enhanced Nextion Files #images

Joshi Hp
 

I download the latest(December) hmi  file but there is a compilation error as shown in the picture.

Re: Unexpected Blowing of Fuses on Transmit

MVS Sarma
 

Correct Jerry. 


On Mon, 2 Dec 2019, 10:45 am Jerry Gaffke via Groups.Io, <jgaffke=yahoo.com@groups.io> wrote:
If the fuse blows when you push PTT but before speaking into the mike,
it probably is not mike gain or the RV1 drive setting.
Most likely trouble around the IRF510's somehow.

##########################
You cant have all of 
1. Preset gate more than 100mA drain current,
2. Hi rf drive with q90 collector preset and
3 boosted mic gain with presetbfor modulation level control. 
 
You may have to reduce at two of the locations. 
 
All the best 
 

Re: Unexpected Blowing of Fuses on Transmit

Jerry Gaffke
 

If the fuse blows when you push PTT but before speaking into the mike,
it probably is not mike gain or the RV1 drive setting.
Most likely trouble around the IRF510's somehow.

##########################
You cant have all of 
1. Preset gate more than 100mA drain current,
2. Hi rf drive with q90 collector preset and
3 boosted mic gain with presetbfor modulation level control. 
 
You may have to reduce at two of the locations. 
 
All the best 
 

Re: KD8CEC ‘s SWR senser

Jerry Gaffke
 

Kits and Parts assumes you are using an old school micro-ammeter.  
That would present more of a load than the tens of megaohms presented by the Nano's analog input pin.

The TandemMatch/StocktonBridge circuit has RF going into the diodes that is proportional to the forward and reverse power.
That power can vary from second to second, the 220K resistor discharges the 0.1uF cap when the power decreases.
The value of the resistor is not critical, but without it it might be several seconds before the cap discharges.

Jerry, KE7ER

 

On Sun, Dec 1, 2019 at 01:45 PM, Joel Trenalone wrote:
Also, here are the schematics for both the kitsandparts bridge (I’m using), and the home brew Stockton bridge (that Ian Lee uses in his video and description http://www.hamskey.com/2019/04/installing-swr-and-rf-power-sensor-in.html  )

I see some differences, namely the 220k resistor to ground from the reverse/forward power outputs on the Stockton bridge, but is not on the kitsandparts bridge. Note sure why the difference, and how it affects the operation to the Arduino.