Date   

Re: Questions on UBitX upgrade (simple) to Nextion #nextion #parts

_Dave_ AD0B
 

If you have a front panel you don't need to buy anything. Just make the display hole bigger. Lay out the hole and use a small drill and play "connect the dots" In no time you will have a hole for the new display.


Re: Antuino 2.0

Daniel Walter
 

Farhan,

So, what’s the answer? Does the AD8307 need to be changed? This does not seem to be necessary as my readings are pretty consistent, just inaccurate. Would Arduino firmware programming changes fix it? If so, I don’t think that is something I have equipment or expertise to do although I may have club members who could. 
--
Dan, NM3A


Re: Newby - uBitx powers on but no Rx

 

Hi,

Are they powering on to RX or TX?  Unless you have the CW resistors installed on the KEY jack, the radio will power up on TX.

73,


 Mark.


Re: Ubitx v5. Must sell.

Balasubramanyan Cp
 

Dear OM,
Contact for new V5 uBITX MULTIBAND 10W SSB/CW QRP. From Om FARHAN - the Designer. 
73
De VU2UYC. Balsun. Email bsnvu2yc73s@...

On Sun, Jul 7, 2019 at 6:45 AM Kelly Mabry <kmabry2007@...> wrote:
Everyone thank you for your interest the radio has been sold.

73,

Kelly KD5AJ 


Re: Ubitx v5. Must sell.

Kelly Mabry
 

Everyone thank you for your interest the radio has been sold.

73,

Kelly KD5AJ 


Re: Uploading sketch

Jack, W8TEE
 

These are caused by passing a string constant to the printLine2() function which expects a character pointer, thus is a type mismatch. Try this:

    printLine2( (char *) "uBITX v5.1");


Jack, W8TEE



On Saturday, July 6, 2019, 7:56:11 PM EDT, jsternmd <jsternmd@...> wrote:


Tom,

I did exactly as you did plus checked that the board was an Arduino Nano, ATmega328O and then I ran verify/compile and keep getting a ton of conversion errors:

 
 
 
C:\Users\jster\Downloads\ubitx_v5-master\ubitx_v5.1_code\ubitx_v5.1_code.ino: In function 'void setup()':
 
C:\Users\jster\Downloads\ubitx_v5-master\ubitx_v5.1_code\ubitx_v5.1_code.ino:669:26: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
 
   printLine2("uBITX v5.1");
 
                          ^
 
C:\Users\jster\Downloads\ubitx_v5-master\ubitx_v5.1_code\ubitx_factory_alignment.ino: In function 'void factory_alignment()':
 
C:\Users\jster\Downloads\ubitx_v5-master\ubitx_v5.1_code\ubitx_factory_alignment.ino:30:31: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
 
     printLine2("Setup Aborted");
 
                               ^
 
C:\Users\jster\Downloads\ubitx_v5-master\ubitx_v5.1_code\ubitx_factory_alignment.ino:37:22: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
 
   printLine2("#2 BFO");
 
                      ^
 
C:\Users\jster\Downloads\ubitx_v5-master\ubitx_v5.1_code\ubitx_factory_alignment.ino:44:31: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
 
     printLine2("Setup Aborted");
 
                               ^
 
C:\Users\jster\Downloads\ubitx_v5-master\ubitx_v5.1_code\ubitx_factory_alignment.ino:48:30: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
 
   printLine2("#3:Test 3.5MHz");
 
                              ^
 
C:\Users\jster\Downloads\ubitx_v5-master\ubitx_v5.1_code\ubitx_factory_alignment.ino:59:28: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
 
   printLine2("#4:Test 7MHz");
 

Any advice?

Jerry
 


Re: Uploading sketch

jsternmd
 

Tom,

I did exactly as you did plus checked that the board was an Arduino Nano, ATmega328O and then I ran verify/compile and keep getting a ton of conversion errors:

 
 
 
C:\Users\jster\Downloads\ubitx_v5-master\ubitx_v5.1_code\ubitx_v5.1_code.ino: In function 'void setup()':
 
C:\Users\jster\Downloads\ubitx_v5-master\ubitx_v5.1_code\ubitx_v5.1_code.ino:669:26: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
 
   printLine2("uBITX v5.1");
 
                          ^
 
C:\Users\jster\Downloads\ubitx_v5-master\ubitx_v5.1_code\ubitx_factory_alignment.ino: In function 'void factory_alignment()':
 
C:\Users\jster\Downloads\ubitx_v5-master\ubitx_v5.1_code\ubitx_factory_alignment.ino:30:31: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
 
     printLine2("Setup Aborted");
 
                               ^
 
C:\Users\jster\Downloads\ubitx_v5-master\ubitx_v5.1_code\ubitx_factory_alignment.ino:37:22: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
 
   printLine2("#2 BFO");
 
                      ^
 
C:\Users\jster\Downloads\ubitx_v5-master\ubitx_v5.1_code\ubitx_factory_alignment.ino:44:31: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
 
     printLine2("Setup Aborted");
 
                               ^
 
C:\Users\jster\Downloads\ubitx_v5-master\ubitx_v5.1_code\ubitx_factory_alignment.ino:48:30: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
 
   printLine2("#3:Test 3.5MHz");
 
                              ^
 
C:\Users\jster\Downloads\ubitx_v5-master\ubitx_v5.1_code\ubitx_factory_alignment.ino:59:28: warning: ISO C++ forbids converting a string constant to 'char*' [-Wwrite-strings]
 
   printLine2("#4:Test 7MHz");
 

Any advice?

Jerry
 


Re: #Ubitx #bitx20help. Anyone out there who can work on a Ubitx ? #ubitx

RICHARD <k6kwq@...>
 

I could help him if he is in my area (Southern Cal)  I’m 80 years old and still love to work on the new stuff.  I still do my own tower work.  AGE IS JUST A NUMBER !

K6KWQ

   I’m 80 years old and still do my own Ham radio work including

 

Sent from Mail for Windows 10

 


From: BITX20@groups.io <BITX20@groups.io> on behalf of Kelly Mabry <kmabry2007@...>
Sent: Saturday, July 6, 2019 2:11:32 PM
To: BITX20@groups.io
Subject: [BITX20] #Ubitx #bitx20help. Anyone out there who can work on a Ubitx ?
 
I know an elderly gentleman who needs help with his ubitx and is willing to pay for service. Is there anyone who is willing to do mod work for a decent price? He has very little test equipment and is over 70. I am not asking for myself.

73,
Kelly


Re: uBitx not receiving well on CWU or CWL

Mike Kilpatrick <mike.kilpatrick@...>
 

Hello Derek,

 

I’m no expert but here’s what got me out of trouble when helped by others:

 

We have a CW practise station here in VK-land  which transmits constantly on 3.599 MHz so I tuned to this and tweaked the CW BFO setting on the uBitx whilst listening. It worked fine for me. I guess any CW station will do the trick.   My setting ended up at 11.055.105 which might put you in the ballpark.

 

To have ubitx display the same Tx & Rx freq on CWL or CWL open uBitx Memory Manager.  Connect to uBitx. Read from uBitx. Then check the “Enabled Adjust CW Tx Frequency” and  “Shift Display Frequency on CWL, CWU Mode” boxes.  Leave the “CW Freq Adjust Value” at zero.

 

Hope this helps.

Mike   VK2DJP

 

 

From: derek (G4VWI) via Groups.Io
Sent: Sunday, July 7, 2019 05:05
To: BITX20@groups.io
Subject: Re: [BITX20] uBitx not receiving well on CWU or CWL

 

Hi Mike and others. What is the best way to calibrate CW RX BFO using the KD8CEC firmware.

There appears to be little written about this elsewhere so I was wondering how successful you were in sorting out receive in CWU and CWL by tweaking the CW RX BFO settings? How close did you get to sharpening up the reception of CW signals using the CWU and CWL modes in the KD8CEC firmware?

Did you use a signal generator or CW signal on a known frequency, or did you just tune to a strong CW signal and tweak for best audio? What have others done to obtain the best results?

Best wishes.
Derek G4VWI.


 

 


#Ubitx #bitx20help. Anyone out there who can work on a Ubitx ? #ubitx

Kelly Mabry
 

I know an elderly gentleman who needs help with his ubitx and is willing to pay for service. Is there anyone who is willing to do mod work for a decent price? He has very little test equipment and is over 70. I am not asking for myself.

73,
Kelly


Re: uBitx not receiving well on CWU or CWL

derek (G4VWI)
 

Hi Mike and others. What is the best way to calibrate CW RX BFO using the KD8CEC firmware.

There appears to be little written about this elsewhere so I was wondering how successful you were in sorting out receive in CWU and CWL by tweaking the CW RX BFO settings? How close did you get to sharpening up the reception of CW signals using the CWU and CWL modes in the KD8CEC firmware?

Did you use a signal generator or CW signal on a known frequency, or did you just tune to a strong CW signal and tweak for best audio? What have others done to obtain the best results?

Best wishes.
Derek G4VWI.


 


Re: Ubitx v5. Must sell.

Martin KM6TCD
 

Tell me more!
km6tcd

 
Sent: Saturday, July 06, 2019 at 9:40 AM
From: "Kelly Mabry" <kmabry2007@...>
To: BITX20@groups.io
Subject: Re: [BITX20] Ubitx v5. Must sell.
Sorry OM;  lower 48 us only
 
 
 
Sent from my Verizon, Samsung Galaxy smartphone
 
-------- Original message --------
From: Werner de Vos <wernerdevos@...>
Date: 7/6/19 4:03 AM (GMT-06:00)
To: BITX20@groups.io
Subject: Re: [BITX20] Ubitx v5. Must sell.
 
Do you ship to the Netherlands? I’m very interested.

73 Werner PA3GYV 


Re: Ubitx v5. Must sell.

Kelly Mabry
 

Sorry OM;  lower 48 us only



Sent from my Verizon, Samsung Galaxy smartphone

-------- Original message --------
From: Werner de Vos <wernerdevos@...>
Date: 7/6/19 4:03 AM (GMT-06:00)
To: BITX20@groups.io
Subject: Re: [BITX20] Ubitx v5. Must sell.

Do you ship to the Netherlands? I’m very interested.

73 Werner PA3GYV 


Re: New V5 build results and calibration issues. #ubitx-help #nextion #ubitx #calibration

Mike Kilpatrick <mike.kilpatrick@...>
 

Excellent info, Roman. Thanks very much!
I’ve been trying to work out a way to get a more accurate BFO adjustment and without having test gear I’ve been stumped. 
Your procedure does the trick!
73
Mike
VK2DJP


On 6 Jul 2019, at 17:29, Roman <rmach1000@...> wrote:

An update on the BFO adjustment - It turns out that the info I gave about adjusting for the lowest pitch is wrong. If not adjusted correctly, you may end up transmitting both the signal AND the carrier if the filter has been shifted too far (wrong BFO adjustment). For SSB the carrier needs to be suppressed, but it is possible to have the carrier transmitting unintentionally. I found this out while trying to transmit FT8 signals and seeing two spikes on my SDR (running using a separate tiny antenna and laptop in the other room).

I've found the only reliable approach that doesn't involve complex test instruments is to download and use an audio spectrum analyzer program. This is confirmed in other posts I've seen. The one I stumbled upon that seemed to do the job is SpectrumView by WD6CNF.

Here is a procedure that will get you in the ballpark:

1. Disconnect antenna from ubitx, or better, find an unused part of the band with just hiss, no other signals
2. Run audio out from ubitx into PC/Mac/Linux audio in
3. Run spectrum analyzer and configure it to listen to the audio in
4. Turn up volume on ubitx until levels are reasonably high but not clipping in the spectrum analyzer
5. For the ubitx 5 (not the earlier versions), you will want to set the BFO somewhere around 11.055-11.056 MHz as a starting point.
6. I am going to presume that you started with the BFO frequency on the high side, say 11.057 and you are lowering it. As you do so, you should see on the spectrum analyzer that the noise's high frequency roll off frequency increase. At some point it will no longer get any higher no matter what you do with the BFO value. The point you want is right as you touch that max value. You might have to back off and watch the max value decrease, then adjusting again until you find the maximum.
7. Save the BFO frequency using the PTT where you get maximum high frequency response. I found that the BFO frequency was about 1.5-2 kHz lower than the frequency where the I got the most "bass" response in my headphones, thus the final result had less bass response.
8. If you have an SDR, you can double-check your results: Run ubitx into a dummy load and have an SDR with separate tiny (or no) antenna nearby, either run WSJT-X "Tune", or a single frequency of audio into the ubitx mic. The SDR will likely be sensitive enough to pick up stray RF (even with the dummy load) and you should be able to see only one, not two spikes on the display (make sure you zoom in maximum to a narrow bandwidth view).

After this adjustment, I've managed to make a few longer distance FT8 contacts, i.e. Seattle to Alaska on 40m.

I know the procedures I've written are long and seem complicated, but I do that on purpose to give the most information possible especially for those who may be stuck on some detail they read elsewhere. I do have one caveat: If you have a properly factory tuned ubitx, I would not recommend adjusting the ubitx calibration or BFO.

Hope this info helps someone,
Roman K7TXL


Re: Ubitx v5. Must sell.

Werner de Vos
 

Do you ship to the Netherlands? I’m very interested.

73 Werner PA3GYV 


Re: Remote access - I want to connect ubitx to Raspberry PI and remote in #remoteaccess

Roman
 

There's an article in the Oct 2018 QST about a ubitx-based "appliance" interfacing with, get this, not a raspberry pi, but an Asus Tinkerboard - the creator, Chuck Kelly, found that a pi 3 does not have enough processor power to decode FT8 in a timely manner.

Seems like if you are going to do audio streaming and maybe FT8, a Tinkerboard would probably be called for or possibly the new pi 4, which seems to have similar specs to the Tinkerboard. Beware though, the pi 4 has the micro hdmi outputs so adapters are required. I don't have any experience with either, although I've used a pi 3 for WSPR with good success.

73
Roman, K7TXL


Re: New V5 build results and calibration issues. #ubitx-help #nextion #ubitx #calibration

Roman
 

An update on the BFO adjustment - It turns out that the info I gave about adjusting for the lowest pitch is wrong. If not adjusted correctly, you may end up transmitting both the signal AND the carrier if the filter has been shifted too far (wrong BFO adjustment). For SSB the carrier needs to be suppressed, but it is possible to have the carrier transmitting unintentionally. I found this out while trying to transmit FT8 signals and seeing two spikes on my SDR (running using a separate tiny antenna and laptop in the other room).

I've found the only reliable approach that doesn't involve complex test instruments is to download and use an audio spectrum analyzer program. This is confirmed in other posts I've seen. The one I stumbled upon that seemed to do the job is SpectrumView by WD6CNF.

Here is a procedure that will get you in the ballpark:

1. Disconnect antenna from ubitx, or better, find an unused part of the band with just hiss, no other signals
2. Run audio out from ubitx into PC/Mac/Linux audio in
3. Run spectrum analyzer and configure it to listen to the audio in
4. Turn up volume on ubitx until levels are reasonably high but not clipping in the spectrum analyzer
5. For the ubitx 5 (not the earlier versions), you will want to set the BFO somewhere around 11.055-11.056 MHz as a starting point.
6. I am going to presume that you started with the BFO frequency on the high side, say 11.057 and you are lowering it. As you do so, you should see on the spectrum analyzer that the noise's high frequency roll off frequency increase. At some point it will no longer get any higher no matter what you do with the BFO value. The point you want is right as you touch that max value. You might have to back off and watch the max value decrease, then adjusting again until you find the maximum.
7. Save the BFO frequency using the PTT where you get maximum high frequency response. I found that the BFO frequency was about 1.5-2 kHz lower than the frequency where the I got the most "bass" response in my headphones, thus the final result had less bass response.
8. If you have an SDR, you can double-check your results: Run ubitx into a dummy load and have an SDR with separate tiny (or no) antenna nearby, either run WSJT-X "Tune", or a single frequency of audio into the ubitx mic. The SDR will likely be sensitive enough to pick up stray RF (even with the dummy load) and you should be able to see only one, not two spikes on the display (make sure you zoom in maximum to a narrow bandwidth view).

After this adjustment, I've managed to make a few longer distance FT8 contacts, i.e. Seattle to Alaska on 40m.

I know the procedures I've written are long and seem complicated, but I do that on purpose to give the most information possible especially for those who may be stuck on some detail they read elsewhere. I do have one caveat: If you have a properly factory tuned ubitx, I would not recommend adjusting the ubitx calibration or BFO.

Hope this info helps someone,
Roman K7TXL


Re: Remote access - I want to connect ubitx to Raspberry PI and remote in #remoteaccess

Tom, wb6b
 

Hi,

Audio streaming seems to be a missing element in trying to remote control your shack. 

Has anyone tried these for a web browser/server based remote controller solution? (These are just a few things I found with a Google search for html RTC services).

https://www.html5rocks.com/en/tutorials/webrtc/basics/
https://webrtc.org
https://github.com/muaz-khan/RTCMultiConnection

Are there other DYI solutions. The team builder link looks good for a hosted (paid ?) solution, though.

Tom, wb6b


Re: Antuino 2.0

VISWANATHAN R ELAYIDOM
 


On Sat, Jul 6, 2019, 10:00 AM VISWANATHAN R ELAYIDOM via Groups.Io <vu2eaf9=gmail.com@groups.io> wrote:

On Sat, Jul 6, 2019, 9:33 AM Ashhar Farhan <farhanbox@...> wrote:
I suspect (i havent checked) that this is because of inaccurate adc readings. Sometimes the adc takes repetitive readings to get it right.
- f

On Fri 5 Jul, 2019, 9:42 PM Rob Bleumer, <rob.bleumer@...> wrote:
Hi all,
I do not talking about the genetal enclosure but inside the enclosure protect AD8307 and the 25Mhz filters and amplifiers with an extra hf shielding.
Rob PA0RBL

--
Which is the latest version


--
Which is the latest version


Re: Antuino 2.0

VISWANATHAN R ELAYIDOM
 


On Sat, Jul 6, 2019, 9:33 AM Ashhar Farhan <farhanbox@...> wrote:
I suspect (i havent checked) that this is because of inaccurate adc readings. Sometimes the adc takes repetitive readings to get it right.
- f

On Fri 5 Jul, 2019, 9:42 PM Rob Bleumer, <rob.bleumer@...> wrote:
Hi all,
I do not talking about the genetal enclosure but inside the enclosure protect AD8307 and the 25Mhz filters and amplifiers with an extra hf shielding.
Rob PA0RBL


--
Which is the latest version