Date   

Re: UBITX V4, bitx40 misc boards for sale

Mike Short <ai4ns.mike.spam@...>
 

ubitx v4 is sold. Thank you all.


On Sun, Jul 26, 2020 at 5:26 PM Juan Fernandez <jaybepr@...> wrote:
Is the uBITX V4 in good working order? PayPal???

On Sat, Jul 25, 2020 at 5:44 PM Mike Short <ai4ns.mike.spam@...> wrote:

I have for sale:
uBITX V4 $80
bitx40 and  amateurradiokits case $60
Two K5BCQ AGC boards $5 each
External Relay Board $10
External connection boards $2
VK4PLN CW filter boards and breakout boards. $1 each

or make an offer. 

mike AI4NS 



Re: #bitx40 to buy or trade #bitx40

Ted
 

Yes, and you replied to my post on your QRZ page. 

Many thanks & best luck always,

Ted


Re: #bitx40 to buy or trade #bitx40

Reed N
 


#bitx40 to buy or trade #bitx40

Ted
 

Looking for a BITX40,  complete kit without case or with, but case not of interest; a special packaging project awaits.  Also in market for a ME40+, 4-State QRP, or similar minimalist 2-4w VCXO QRP CW rig in good working order.  Putting together a kit is to mind-numbing for me at this point but I can mod stuff just fine.

I may be able to trade a widely-upgraded V3 board, 4-line display, and Raduino; still thinking about that but it's not made it into a case of it's own so far.


72,

Ted


Re: BITX40 Pop Fix

BevTed Stanier <bevtedstan@...>
 

Roger 
Now have a sketch and library installed and looking for cable.😬


On Jul 27, 2020, at 2:58 PM, Allard PE1NWL <pe1nwl@...> wrote:

Hi Ted,

it appears that the github user interface has slightly changed,
Instead of "clone or download", click on the green "Code" button and then choose "download ZIP":

<dummyfile.0.part>



73 Allard PE1NWL


Re: BITX40 Pop Fix

Allard PE1NWL
 

Hi Ted,

it appears that the github user interface has slightly changed,
Instead of "clone or download", click on the green "Code" button and then choose "download ZIP":





73 Allard PE1NWL


Bitx 40 For Sale

Scot McMath
 

search for WB7AVU in QTH or QRZ for sale ads


Re: At my wit's end with this uBitx

Bill Cromwell
 

Hi Reed,

I installed your software in a V6 for another ham. Nice job:)

When you get one for V3 and stock display please let me know.

Maybe I can learn enough about the programming top transplant some of your routines into the software I have.

73,

Bill KU8H

bark less - wag more

On 7/27/20 1:31 PM, Reed N wrote:
Stock v6.1 code reverts the calibrations. My version does not.
Reed


Re: At my wit's end with this uBitx

Reed N
 

Stock v6.1 code reverts the calibrations. My version does not.


Reed


Re: Digital Interface - transformer seems to drastically weaken signal

Rob French (KC4UPR)
 

Hey Evan,

Really I think the only difference between EasyDigi and my setup, is that the Teensy + Audio Adapter takes the place of the sound card.  The added capability of the Teensy is that I plan to (and have previously) implemented standalone DSP filters for transmit and receive in the Teensy.  I'll have a mic input option to the Teensy, with S/W speech compressor, as well as variable width receive filters.  Right now, the part that I'm having issues with is in fact the "EasyDigi" part (i.e. the transformers).

As you noted, yes, the Teensy Audio Adapter is capacitively coupled with 2.2uF capacitors on all of the audio input/output lines.  If I can't figure out this transformer thing, I'll probably just directly connect to the Teensy.

I noted recently that, when transmitting into a dummy load, everything seemed fine (without the transformers installed).  However, when I transmitted through my antenna, I had a terribly distorted audio waveform.  I traced this to the unused wire in the stereo audio cable I was using... when I grounded that unused wire, the distortion went away.  I have a suspicion that issues with RFI are contributing to my woes.

I'm going to try prototyping a quick setup where I (a) add a couple 0.01 uF bypass capacitors at each side of the transformer, and at each end of the audio cable, and (b) use a good, shielded mono audio cable for each of the RX and TX audio connections.  If that doesn't work, then I'll try swapping out one of the El Cheapo 1:1 isolation transformers I'm using, for an ostensibly higher quality Xicon transformer I have lying around from Mouser.  That one isn't a 1:1 transformer (I think it's 4k:600 ohm), but maybe I can use the transformation ratio to my advantage as well (e.g. step down the transmit audio).

Rob KC4UPR


Re: At my wit's end with this uBitx

Bill Cromwell
 

Hi,

I did the calibration on V6 with the stock software and it did not remember of show the previous cal numbers for the VFO. I had to write them down. As I recall the BFO was less troublesome. I might recall that wrong. I was wrong once before you know ;)

73,

Bill KU8H

bark less - wag more

On 7/27/20 12:41 PM, Evan Hand wrote:
The short answer is yes.  The longer answer is that as long as you use the same Nano, the values are stored in the EEPROM area that is separate from the program area.  If you do swap out the Nano, then you need to recalibrate.  The values used before can be loaded as the calibration data to start.  What I am trying to say is that if you load the CEC software on top of the stock software in the Nano that was used for calibration.
Remember that to get the best calibration for the frequency, you should set the BFO tuning value lower than normal, zero beat to calibrate, then set the BFO tuning back to be centered between 300 and 3000 Hz.
Question for a v6 owner, does the new software show you the current calibration/tuning value, or does it go back to default as all of the prior stock versions did?  If the latter, then I other than writing down the value, there is no way to save it for later display.
73
Evan
AC9TU


Re: Ubitx V3/V4 Outboard Relay mod board

Gordon Gibby
 

The Gerbers are freely available, you could have boards made yourself.   


On Jul 27, 2020, at 12:35, Mike Short <ai4ns.mike.spam@...> wrote:


Sorry, it is sold.

On Mon, Jul 27, 2020 at 8:16 AM Don - KM4UDX <dontAy155@...> wrote:
Mike -- sorry to be slow, but I can't figure your email.  And yes I'd love this board in my uBITX!!

Dontay155[@gmail.com]


Re: At my wit's end with this uBitx

Evan Hand
 

The short answer is yes.  The longer answer is that as long as you use the same Nano, the values are stored in the EEPROM area that is separate from the program area.  If you do swap out the Nano, then you need to recalibrate.  The values used before can be loaded as the calibration data to start.  What I am trying to say is that if you load the CEC software on top of the stock software in the Nano that was used for calibration.

Remember that to get the best calibration for the frequency, you should set the BFO tuning value lower than normal, zero beat to calibrate, then set the BFO tuning back to be centered between 300 and 3000 Hz.

Question for a v6 owner, does the new software show you the current calibration/tuning value, or does it go back to default as all of the prior stock versions did?  If the latter, then I other than writing down the value, there is no way to save it for later display.

73
Evan
AC9TU


Re: Ubitx V3/V4 Outboard Relay mod board

Mike Short <ai4ns.mike.spam@...>
 

Sorry, it is sold.


On Mon, Jul 27, 2020 at 8:16 AM Don - KM4UDX <dontAy155@...> wrote:
Mike -- sorry to be slow, but I can't figure your email.  And yes I'd love this board in my uBITX!!

Dontay155[@gmail.com]


Re: At my wit's end with this uBitx

Grover Cleveland <k7tp@...>
 

Can the numbers that I use when calibrating the radio using the CEC software and original TFT screen be used with the Nextion? Are they even close?
It would be a good starting point for setting up the Nextion calibration.
Thanks,
K7TP
(p.s. The radio is working well with the original software and TFT screen now)


Re: uBITX V6 Expanded System

Bob, N1KPR
 

Thanks Arv:
I'm really resisting the s/w route b/c this unit will be handled by club members. I want to keep the reliance on s/w confined to the original ver. The guys at the club can handle hardware, physical components, mods and repairs, but who knows what software capable club members may try or NOT try in the future. This way, if there's any probs, they can just refresh the original firmware and be done.
Anyhow, today I played with a couple of S-Meter circuits and where to tap the signal. I reasoned that since there is no AM carrier (dead air) to contend with that I could just calibrate a meter to the SSB and CW analog signals. Anyway, I got the meter to work very nicely and it behaves just like a regular Ham xceiver while receiving SSB. I'm using a high impedance input amp to get gain from the H side of the audio pot. That drives a 1N914 to a 10uF filter cap, then a 20K trim pot to the 500uA meter. It works perfectly. I played it side-by-side with a communications receiver to calibrate the trim pot. I'm happy and life is good. While I was at it, I added red and green LEDs thru a differential amp that indicate 'dead air' or 'signal present'. Now, when the rig is in the field I can tell if someone is calling...visually. Like when you take the headphones off to talk to your assistant (EmComm logger), or are just physically away from the radio. Flashing green means someone is calling.
Next step is adding another T/R relay to use the Preamp/Attenuator on receive.
Thanks everyone for your interest in helping us with this project.
Bob, N1KPR


Re: BITX40 Pop Fix

BevTed Stanier <bevtedstan@...>
 

Thanks Vic and Dave

 

Not sure how I got there but now have a sketch called Master Bitx compiled okay with included library. Had to stop there as found I don’t have right USB cable connection for NANO.

73

Stay safe.

Ted VA7CTA

 

Sent from Mail for Windows 10

 

From: Vic WA4THR via groups.io
Sent: Monday, July 27, 2020 2:57 AM
To: BITX20@groups.io
Subject: Re: [BITX20] BITX40 Pop Fix

 

I am not sure where you are having trouble, Ted. Do you get any error messages at the bottom of the IDE screen when compiling? Do you have the right USB port selected when connected to the Raduino?

My previous programming had been with Fortran on punched cards, then some Basic compiling on an old TRS-80, so the Arduino and C++ was totally new. When I started messing with firmware I found the "Raduino Software for Geezers" very helpful:
https://groups.io/g/BITX20/message/26522?p=,,,20,0,0,0::Created,,software+for+geezers,20,2,0,5045944
Once I sorted that out I was able to load Allard's sketch and then start modifying it to allow displaying an S-meter and voltmeter, and Allard was very helpful when I got stuck in the software.

=Vic=

 


Re: Ubitx V3/V4 Outboard Relay mod board

Christopher Miller
 

Hello,

I have been trying to contact him too. The email he left looks like it goes to spam. I really could use this board but I won’t pick a fight over it.

Chris 


Re: Ubitx V3/V4 Outboard Relay mod board

Don - KM4UDX
 

Mike -- sorry to be slow, but I can't figure your email.  And yes I'd love this board in my uBITX!!

Dontay155[@gmail.com]


Re: BITX40 Pop Fix

David Nelson
 

Ted ,  click on the green ncode button and a popup will show you a download link
Dave  kc2ipx

On Sun, Jul 26, 2020 at 11:18 PM BevTed Stanier <bevtedstan@...> wrote:

Hi Vic

Back looking for more help. I have been playing with an Arduino Uno R3 kit and had an IDE on my laptop. I actually removed it and installed another Arduino IDE via amunters instructions. I added pinchangeinterupt to the library and could include it in a sketch but can’t seem to follow the instructions to download the actual software (sketch}.

I don’t get the green button that says “clone or download” when I go to “Amunter/BITX40”. Can you help again?

Ted

 

Sent from Mail for Windows 10

 

From: Vic WA4THR via groups.io
Sent: Sunday, July 26, 2020 2:50 AM
To: BITX20@groups.io
Subject: Re: [BITX20] BITX40 Pop Fix

 

The BitX40 with the Raduino is a pretty neat rig and I still enjoy mine, particularly as a temporary mobile rig with a mag-mounted hamstick. The first thing you might do, Ted, is to install some upgraded software. Allard Munter. PE1NWL, wrote a wonderful sketch that does not require any hardware changes and fixes some issues on its own. Little things like tuning "clicks" and stability are vastly improved. Additionally, he has a number of very simple and well-illustrated hardware changes that add more and more functionality. You need only to install the free Arduino IDE software on your computer to compile and load the "sketch" to the Raduino, and it is fully reversable as the original sketch is also available n Github, but I doubt anyone ever goes backward. You can find Allard's sketch and documentation here:
https://github.com/amunters/bitx40

=Vic=

 

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