Date   
Re: BITX20 at Dayton Hamvention?

Richard Spohn
 

Oh, don't even go there.

I have your book also, by the way. Isn't that "books?" I believe I
have two of your books. Don't shoot me if I am thinking of somebody
else... ...I too am a "paper" person! First licensed in 1970. Still
desire to send and receive paper QSL cards. Write my own short
stories on all kinds of paper, napkins, flyers, envelopes. When in
doubt, print it. The pen is mightier than the tablet...but the pencil
is The Undisputed King. It not only writes, it easily shades your
drawings. OH NO STOP MY RAMBLING - Rich WB2GXM

On 5/3/18, Jack Purdum via Groups.Io <jjpurdum=yahoo.com@groups.io> wrote:
I'm reminded of the question: "Who loves you more, your wife or your dog?"
Easily answered. Lock them both in the trunk of your car, come back two
hours later, and see which one is glad to see you.

Jack, W8TEE


On Thursday, May 3, 2018, 5:37:10 AM EDT, David Wilcox via Groups.Io
<Djwilcox01=yahoo.com@groups.io> wrote:

Re your dog:  I listened to NPR yesterday on the subject of loneliness.  It
affects a persons health the same as smoking 15 cigarettes a day and is now
considered a major health risk.  Having a pet greatly reduces the risk of
early death.  Love your dog.  I am a retired family doctor and I saw the
effects of loneliness on my patients, not just the elderly ones. Our young
people are the most connected of any generation but are the loneliest they
have ever been.
My wife has been away for 3 weeks helping my kids in a move.  Our 15 y/o
diabetic cat has been a blessing in addition to a few ham radio friends and
my church.
Again, love your dog.
Dave K8WPE
On May 3, 2018, at 4:25 AM, William R Maxwell <wrmaxwell@...>
wrote:




Meawhile, love your dog. You have one of life's real treasures in a dog and
he or she will probably assist in your maintaining health.


On 3/05/2018 12:31 PM, Terry Morris wrote:


Having a dog really hampers my freedom. I can't afford a kennel. Spending
power from pension seems to be getting smaller each year. I have probably
exceeded the norm for retirement, 25 years. I spend my seed money for Dayton
last month on a really great deal for a tower. I paid less than 1/3 what I
paid for same tower 24 years ago. I really wanted to attend Thursday, first
day of FDIM and maybe half a day Friday. I could've stayed at my Sister's
house in Springfield. Would also like to be at Dayton on Sunday. My club,
PCARS aka Portage County Amateur Radio Service, is being presented an award
from DARA for the Best Club of 2018 and our club group picture. The DOG
hampers most of my plans. I would go to Dayton (Xenia) just to talk with
people face-to-face and have a stab at the main prize. I have never won
anything at Dayton. Maybe I will be healthy enough to make the trip in 2019.


Terry - KB8AMZ Brimfield Twp, OH  USA Linux User# 412308, Ubuntu User#
34905 OSs: LM18.2 64bit, Ubuntu 16.04, tahrPup64 64bit, Raspian Orgs:
PCL70-FOP, NTHS, ALUG, ARRL, PCARS#78, NAQCC#6668, NO-QRP-C, QRP-ARCI#8855,
SKCC#14195, USN 1965-1969 AG3
I chair the PCARS CW/QRP SIG and Linux for Hams SIG, second and fifth
Tuesday

my computer, my opinion
On Mon, Apr 30, 2018 at 11:46 PM, Hans Summers <hans.summers@...>
wrote:

Hi Jack, all
> Hans and Ashhar will both be at the FDIM conference just  > before the
Hamvention starts, in Fairborn, OH. I'm fairly certain  > there will also be
a fair number of µBITX users at that  > conference, too.
QRP Labs has a table at vendor evening at FDIM (Thursday 17-May-2018) and
also a booth at the Dayton hamvention, #6414. I hope to have a good
selection of QRP Labs kits on show and for sale.
73 Hans G0UPL http://qrp-labs.com



Re: BITX for 10 meters

Brian
 

To return to the original suggestion of using 25MHz IF, I built a version of the Minima using these Fox FOXLF250F-20 25MHz crystals from RS Components
au.rs-online.com part number 5476121
The idea was to make the Minima work (well) up to 17 meters. The filter and IF worked fine. I never got around to getting the transmit side completed.
73 Brian VK4BAP.

Re: uBITX & 160 meters

bill richardson
 

See this post:

It works you just need a low pass filter. I found it draws more current so make sure you have a good heatsink or fan to keep the finals cool.


On May 3, 2018, at 6:20 PM, Rocco Conte <rconte41@...> wrote:

I was playing with the uBitx I just completed and noticed that it will TX on 160 meters. Is the reason it is not used on 160 the filtering? I seem to remember a post or something showing a filter to use on 160. Can someone give me the scoop on this?

 

Thanks,

Rocco – WU2M

 

Sent from Mail for Windows 10

 

uBITX & 160 meters

Rocco Conte
 

I was playing with the uBitx I just completed and noticed that it will TX on 160 meters. Is the reason it is not used on 160 the filtering? I seem to remember a post or something showing a filter to use on 160. Can someone give me the scoop on this?

 

Thanks,

Rocco – WU2M

 

Sent from Mail for Windows 10

 

Re: Arduino Projects...

 

Dr. Jack, 

As he well knows….my purchase of ‘that’ book….

the spark that helped start a monthly meeting presentation at the Ham club that I attended at that time….I wanted to do some building, some making, some home brewing and was having a little trouble getting others to play with…..so I put together a presentation that started with Dr. Jack’s book….followed that up with the club having a builders group that started with Dr. Jack’s book…..

a few months later….that led to Dr. Jack speaking at a Builders Fest at the Ham clubs hamfest that I am no longer associated with…..said Builders Fest was opened up with my explanation of how everything in the room started with Dr. Jack’s book, and holding up of said book….and few going out as door prizes….

read more at my amazon review, and if you bought one make sure to leave your review…..

in the last few months, my builders group presentation has gone on the road to knoxville, and to kingsport, tn……the opening of both presentations…..holding up Dr. Jack’s book……

ask me how I really feel?

Craig
KM4YEC

On May 3, 2018, at 4:44 PM, MAX <max@...> wrote:

Jack.
 
I bought your book from Amazon last year.  Lots of interesting projects.  Maybe I’ll find the time to build some of them some day.
 
Regards.
 
Max K 4 O D S.
 
I've Never Lost the Wonder.
 
 
 
From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of Jack Purdum via Groups.Io
Sent: Wednesday, May 02, 2018 8:29 PM
To: BITX20@groups.io
Subject: Re: [BITX20] Arduino Projects...
 
:>)

Jack, W8TEE
 
 
On Wednesday, May 2, 2018, 4:31:05 PM EDT, PE1GIJ <info@...> wrote: 
 
 
At least i sponsored the superzize meal.
Using the book a lot

-- 
Ad, PE1GIJ 


Re: µBITX stays in Tx and switches to Band Select? #ubitx-help #ubitx

John (vk2eta)
 

Hello Doug,

Good to hear it disappeared, but in case it comes back here is my experience with the same issue.

I use stereo and mono screened microphone cable and I have connected the ground shields to the ground pin on the Raduino connector. The stereo cable cores are used for the two encoder inputs and the single core for the push button. The shield is connected to the pins of the encoder that go to ground.

I use a metal case and I originally made the mistake of connecting the encoder side of the cable shields to the casing of the encoder, creating a nice ground loop which made matters worse, but after disconnecting the encoder casing it works very reliably.

Hope that helps,

73, John (VK2ETA)

VU2SPF - TFT_TouchScreen_for_uBitx -- CAT, Split, UP/Down Scan, V2.9BU Released with New User Manual

Joe
 

The latest version for the TFT Colour Touch Control has just been released.

PROJECT HIGHLIGHTS
Low cost, standard easy to get parts, Colour, Touch Control and any combination of Touch Control or physical buttons.

TFT (Touch) Display module, Atmega 2650, Si5351 DDS, 1 UBITX and a few wires = All Band rig with Computer / Radio Touch Control Colour Display.


Some new features:


Automatic Scanning - up to band edges in both the directions is now added in V2.9bU of software. The scanning allows one to find signals of interest across the band. Two small buttons labeled 'U' and 'D' scan in up and down directions from the currently set frequency. The scanning can be stopped by touching the frequency display area.


CAT Control  - the software now has new code to emulate FT817 Cat commands... This provides radio and computer control for the digital modes.

User Manual -  A new comprehensive user manual has also been added. Various users and new builders have been looking for this for quite a while.

The new version is available on Github at : https://github.com/sprakashb/TFT_TouchScreen_for_uBitx

Info also available at:

http://vu2spf.blogspot.ca
https://www.youtube.com/watch?v=zkg-IrjV2h4&t=375s     (UBITX ver2.9bu Installation Results)

 

73 - Have a Great Day

SP VU2SPF and Joe VE1BWV



 

Re: KMK ver 2017 pcb update

Rahul Srivastava
 

PA devices seems to have been put the other way around.

Rahul VU3WJM

Re: Arduino Projects...

MAX <max@...>
 

Jack.

 

I bought your book from Amazon last year.  Lots of interesting projects.  Maybe I’ll find the time to build some of them some day.

 

Regards.

 

Max K 4 O D S.

 

I've Never Lost the Wonder.

 

Antique Electronics Site: http://www.angelfire.com/electronic/funwithtubes/

 

 

From: BITX20@groups.io [mailto:BITX20@groups.io] On Behalf Of Jack Purdum via Groups.Io
Sent: Wednesday, May 02, 2018 8:29 PM
To: BITX20@groups.io
Subject: Re: [BITX20] Arduino Projects...

 

:>)


Jack, W8TEE

 

 

On Wednesday, May 2, 2018, 4:31:05 PM EDT, PE1GIJ <info@...> wrote:

 

 

At least i sponsored the superzize meal.
Using the book a lot

--
Ad, PE1GIJ

Re: µBITX stays in Tx and switches to Band Select? #ubitx-help #ubitx

Doug W
 

For those keeping score at home, this seems to have frustratingly magically fixed itself.  So either the moth flew away or the gremlin died.  I hate intermittent problems most of all because they are hardest for me to find.  I really wish I could have figured it out so I could at least fix it if it comes back.  As the saying goes, wish in one hand... 
--
www.bitxmap.com

Re: VK2AUJ's µBITX project

Bo Barry <wn4ghv@...>
 

One warning. The really slick ELECTRIC solder sucker doesn't work! Advertised as 110v but only works on 220.  The electric sucker part works great but not the needed solder iron part of it. 
I don't have much luck with the manual ones.

Re: uBitX, connector specs #ubitx #ubitx-help

Jerry Gaffke
 

This might be confusing to some, I had to think about it for a couple minutes:
>  Tapio I’m sure by now somebody has told you but if not all the connectors and controls (volume control) are included.
This should be read with a long pause after the "not":

"Tapio I’m sure by now somebody has told you but if not:
    All the connectors and controls (volume control) are included."
  
Includes the encoder used for tuning.
And board mounting hardware (standoffs and screws)
And cables with connectors or all wires going into the main board and Raduino
And a BNC jack for the antenna.
And 3.5mm stereo mike an headphone jacks
And a microphone element and a rather small PTT switch with which to build a microphone
A few resistors and a diode.
Oh, and a uBitx board and Raduino board with display.

No knobs,
The shaft on the volume pot is 4mm, which makes finding a knob difficult.
The shaft on the encoder is 6mm, so takes a standard knob for a 1/4" shaft.

Jerry


On Thu, May 3, 2018 at 09:00 am, Skip Davis wrote:
Tapio I’m sure by now somebody has told you but if not all the connectors and controls (volume control) are included. I can’t answer you question about the digital mod hookup except that it should be similar to PSK.

Re: uBitX, connector specs #ubitx #ubitx-help

Jerry Gaffke
 

Tapio,

Headphone and microphone jacks are 3.5mm, stereo.
They have 5 pins, so include internal switches to select a speaker when phones are not used, if that's of interest.

Yes, you can use audio out from the headphone jack to connect to a computer sound card or digital modes.
There are various ways to do this:    http://ubitx.net/category/digital-modes/

Power jack is 2.1mm, center pin positive.
A 2.1mm power plug for the end of your power supply cable is also provided with the kit.

Jerry, KE7ER



On Thu, May 3, 2018 at 01:18 am, Tapio OH2EYY wrote:
I wonder if anybody could help me with following questions. I have ordered uBitX and would like to ready to go once I get it set up. 

1) I assume audio in and audio out jacks are 3.5 mm. Are they mono or stereo, two or three conductor?

2) Can I use audio out to connect to PC mic in? How are you doing digital modes?

3) Power jack size, 2.1 mm, 2.5 mm? Assuming center positive as usual.

I appreciate all inputs on these, thank you!

Tapio OH2EYY

Re: Protoneer Nano-Arm #ubitx

Kees T
 

Received my Protoneer today and put it on the shelf for the time being until one or more of you guys decide what and how to best use it     so I can follow in your footsteps.

73 Kees K5BCQ

Re: FT8 on uBITX experiences

astronuticus@...
 

I ran some FT8 tests with my uBITX as soon as it was assembled.  

Output power levels were 11W at 3.5 and 7 MHz, and about 4W at 10 and 14 MHz.  According to PSK Reporter, my signal was decoded all over North America, with strong SNRs reported by receivers with good propagation paths from Oregon.  I made at least one contact on each band before opening the rig back up to experiment with RV1 and the PA power supply. Note that my antenna is a fan dipole in the attic, with an embarrassingly long feedline (repurposed RG-59) and a manual tuner at the rig in my home office.  So feedline losses are awfully high.

I am running WSJT-X on a 7 inch tablet purpose-built around a Raspberry Pi and a cheap USB soundcard dongle.  The soundcard interface is based on a design by W2DEN (which is in turn based on a design by KK7UQ).  You can see the tablet, and my uBITX, in the gallery at uBITX.net.

I'm using KD8CEC’s firmware. So I should be able to use CAT control for PTT.  But there seems to be a bug in my WSJT-X release that is interfering with CAT functionality. (Either that or I fouled something up when compiling it on the Raspi.)  So for WSJT-X I use an external PTT relay driven by a USB-Serial converter.  CAT control for Fldigi works fine.

In summary, the uBITX is a great rig for FT8, even at out-of-the-box power levels.  That said. I am now splitting off the PA power so I can drive the finals with 24 VDC.  That will help make up for the inefficient antennas that I use while portable. Early testing indicates that with a 24 VDC supply for the PA I can get 20 watts on 3.5-14 MHz, 11 watts at 18 MHz, and 7 watts at 21-28 MHz.  Total current draw was 0.7 to 2.2 amps, measured while transmitting with a 25 VDC supply.  Note that those power levels were reached after also performing the "power leveling" mods suggested by K9HZ and WB2VXW.

Mark (AE7TO)

Re: ND6T AGC implementation for uBIT-X

Rocco Conte
 

Please put me down for 2 of each.

73,
Rocco - WU2M 

On Wed, May 2, 2018, 6:59 PM Glenn <glennp@...> wrote:

Hi Kees

Please put me down for an smd kit of each

glenn

vk3pe



Virus-free. www.avast.com

Re: What does "Like" do?

Vince Vielhaber
 

Use an email client and move the ones you like into a local folder. Been working for me for all lists I'm on for many years.

Vince.

On 05/03/2018 01:25 PM, chich.ve8nx@... wrote:
Too bad. I was hoping to keep track of posts/threads I found interesting
and thought "Likes" would be a way to find them again. Does not appear
to be a way to do this in Groups.io.

Guess I will have to keep a note book of thread titles.

Larry VE7VJ

Re: ND6T AGC implementation for uBIT-X

lou_w2row
 

One of each kit please.

Thanks,
Lou  W2ROW

Re: What does "Like" do?

Jerry Gaffke
 

A suggestion for Mike Woods:
Add links to any relevant forum thread(s) at the bottom of your summary of each subject. 

The forum search tool on the groups.io website mostly works for me, but can be cumbersome.

Jerry, KE7ER



On Thu, May 3, 2018 at 10:25 am, <chich.ve8nx@...> wrote:
Guess I will have to keep a note book of thread titles.  

Re: What does "Like" do?

chich.ve8nx@...
 

Too bad. I was hoping to keep track of posts/threads I found interesting and thought "Likes" would be a way to find them  again. Does not appear to be a way to do this in Groups.io.

Guess I will have to keep a note book of thread titles.  

Larry VE7VJ