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Re: old calibrating uBITX

 

I use the single frequency sine wave.?


Re: old calibrating uBITX

 

Evan thanks for the reply. I am using the K8CEC fw v.1.21 on 20x4 display.
The generator you are using, do you put it in AM modulation or pure sine wave?
Anyway I found the site https://itshamradio.com/bfo-tuning-aid-ubitx/, where there is the same app as Faharan
73 IU7SUX


Re: zBitx doesn't start up

 

Frank.? Thanks for the comprehensive information.? I will try that.
73
Dave, VE3WI


Re: Any update on ft8 messenger you mentioned before?

 

Still haven't had a chance to dig into the software, so I'm not sure if this is expected by default or a change on your end, but the error is just that there are local changes to a file that haven't been added to the git repository. The fix is likely simple, though you do run the risk of tying yourself in git knots. Probably worth a trip to YouTube university (or making sure to have a backup).

If you want to soldier ahead, two methods would be:

1. Revert any changes and try again.

Running "git stash" will restore that file to it's canonical state in the repository. You can return your changes by running "git stash apply"

2. Save the changes

To add the changes to the repo, there are two steps. After navigating to the root directory of the repo, you can "stage" all changes to files already present by running:

"git add -u ./"

Then, you can commit:

git commit -m "my changes"

Then you can try updating again. If git can't figure out how to merge the changes, it will put both versions in the file in question and ask you to edit them manually (pain).

In the meantime, one really nice tool for looking at the current state of the repository is gitk, which can be installed via apt. Just install and run while in the repository: "gitk", and it will pop up a GUI with changes. Then you can see what's up with that file (I'm assuming it's a file and not something more complicated like a submodule).

Will try to fire this up later today or tomorrow to see for myself.

-Grant

Sent from my phone


On Sun, May 25, 2025, 9:55?AM Vince d'Eon VE6LK/AI7LK via <vincedeon=[email protected]> wrote:
Unfortunately this approach throws errors, see screengrab
I'm sure this is something simple, however it is beyond me as I don't do github at all.


Re: Out of the box unusable on CW

 

i got my unit on May 20th.? I have been slowly working all the modes and frequencies.?
?
I have the same problem with paddle when trying to send above 17 or 18wpm it seems.? Also, if i run stand alone (no external monitor or no web mode) then the macros seem to work fine but when ever in non-stand alone mode, as you said they start and stop part way thru.? I have found no pattern to it.? The stopping seems random
?
I also can't get straight key to work very well.? I am starting to read thru the emails to see when I can find on these issues.
--
"POWER, WE DONT NEED NO STINKIN' POWER" - Every KX2 Owner
Always respect the air waves,
73 de KI7PBR, Gary


Re: Any update on ft8 messenger you mentioned before?

 

Unfortunately this approach throws errors, see screengrab
I'm sure this is something simple, however it is beyond me as I don't do github at all.


Re: Failure on first use?

 


Re: Sbitx v3 frequency off by 300 hz

 


Re: Sbitx v3 frequency off by 300 hz

 


On Sun, May 25, 2025 at 10:31?AM Robert Strauss via <sea130=[email protected]> wrote:

On Sun, May 25, 2025 at 10:09?AM Evan Hand via <elhandjr=[email protected]> wrote:
Hi Niles,
?
How to adjust the calibration depends on the software version you are using.? ?I highly recommend switching to the 64-bit version that JJ leads:
?
The calibration is handled in the "Toolbox."
?
The stock version requires a modification to the C program and a rebuild of the software.
?
73
Evan
AC9TU


Re: Sbitx v3 frequency off by 300 hz

 


On Sun, May 25, 2025 at 10:09?AM Evan Hand via <elhandjr=[email protected]> wrote:
Hi Niles,
?
How to adjust the calibration depends on the software version you are using.? ?I highly recommend switching to the 64-bit version that JJ leads:
?
The calibration is handled in the "Toolbox."
?
The stock version requires a modification to the C program and a rebuild of the software.
?
73
Evan
AC9TU


Re: old calibrating uBITX

 



On Sun, May 25, 2025 at 10:03?AM Evan Hand via <elhandjr=[email protected]> wrote:
Hi Antonio,
?
What software are you using for the Nano?? That can influence the calibration method.
?
Since it is receive only, zero beating is the best solution that I know of.? Any known CW, AM, or FM source in the receive area can work.? Tune the radio to the signal source frequency (I use a known, accurate signal generator) and follow the general steps of:
1 - Adjust the BFO to receive the low-frequency audio tones by positioning the plateau to the left of the 300 to 3,000 Hz range
2 - Calibrate the Master frequency using the zero beat method
3 - Readjust the BO to center the audio plateau between 300 and 3,000 Hz.
?
Here is a v6 video to do the calibration:
?
The steps to turn on the BFO and Calibration functions in the Nano depend on the software you use.
?
The BFO tuning page from HFSignals is no longer functional.? I use a PC based audio spectrum analyzer to set the BFO:
or
?
73
Evan
AC9TU
?


Re: Sbitx v3 frequency off by 300 hz

 

Hi Niles,
?
How to adjust the calibration depends on the software version you are using.? ?I highly recommend switching to the 64-bit version that JJ leads:
?
The calibration is handled in the "Toolbox."
?
The stock version requires a modification to the C program and a rebuild of the software.
?
73
Evan
AC9TU


Re: old calibrating uBITX

 

Hi Antonio,
?
What software are you using for the Nano?? That can influence the calibration method.
?
Since it is receive only, zero beating is the best solution that I know of.? Any known CW, AM, or FM source in the receive area can work.? Tune the radio to the signal source frequency (I use a known, accurate signal generator) and follow the general steps of:
1 - Adjust the BFO to receive the low-frequency audio tones by positioning the plateau to the left of the 300 to 3,000 Hz range
2 - Calibrate the Master frequency using the zero beat method
3 - Readjust the BO to center the audio plateau between 300 and 3,000 Hz.
?
Here is a v6 video to do the calibration:
?
The steps to turn on the BFO and Calibration functions in the Nano depend on the software you use.
?
The BFO tuning page from HFSignals is no longer functional.? I use a PC based audio spectrum analyzer to set the BFO:
or
?
73
Evan
AC9TU
?


Re: old calibrating uBITX

 


Sbitx v3 frequency off by 300 hz

 

?Can anyone tell me how to adjust the frequency offset on the Sbitx? To hear any frequency ie 7.196 I have to use 7.196.3 ¡­ the truSDX has a setting for this and I am hoping this radio does as well.

Thanks in advance, Niles. KC8RJH
Sent from my iPhone


old calibrating uBITX

 

Hi everyone, I built a uBitx v5 (so 11.059 filter) from scratch only receiver. I know it's an obsolete and trite topic, but I wanted to ask you if there is a good method to calibrate its VFO and perform the calibration. I've read a lot of things, but I can't do it optimally.
I have calibrated the frequencies output from the raduino via software. But the receiver I just can't understand the logic.
I hope to receive some safe suggestions, to then transfer it to a container.
Also, the VFO calibration and calibration, must be done on an amateur radio frequency or on a commercial one (also much debated)?
Thanks and 73 by Antonio IU7SUX


Re: Activate auto-hotspot on zBitx?

 

¿ªÔÆÌåÓý

Is there any way you can carry a cable to connect direct to a router in where ever you are staying? ?I am an old newbie but I can connect my Bridgecom hotspot (for DMR) direct to the router in the condo we rent each winter and therefore don¡¯t have to connect through the wifi. ?When reading your email I just wondered if that was possible in this case. ?If I am way out in left field I am comfortable out there as I have been there much of my life. Ha!?

Many of the motels and condos we stay at have the router right behind the TV. So for the gurus out there is the above thought possible with the zBitX? ?Remember guys, I am a big proponent of the ¡°There are NO dumb questions in a hobby¡±. ?Please be kind. Ha!

Dave K8WPE


On May 25, 2025, at 6:46?AM, Vic WA4THR via groups.io <vhklein@...> wrote:

?
Has anyone activated the auto-hotspot feature on the zBitx and can explain how to do it? I do have VNC running and I am connected to my WiFi, but I want to be able to connect when around unknown WiFi such as on vacation where I don't know the WiFi name and password until I get there.
?
=Vic=


Activate auto-hotspot on zBitx?

 

Has anyone activated the auto-hotspot feature on the zBitx and can explain how to do it? I do have VNC running and I am connected to my WiFi, but I want to be able to connect when around unknown WiFi such as on vacation where I don't know the WiFi name and password until I get there.
?
=Vic=


Waterfall and CW decoder on/off

 

The receiver noise would go away if the waterfall could be stopped. Could someone put a "Wfall on/off" icon in the SET or MENU functions that would stop the waterfall.
It would be nice if the CW decoder could be stopped as well.


Re: Failure on first use?

 

On Sat, May 24, 2025 at 06:11 AM, David Wilcox K8WPE wrote:
Check your power supply (or batteries if using). ?Two of us from our club bought the zBitX at FDIM and bought batteries in the flea market. ?After about 15 minutes of just listening the screen flickered, went gray, and the radio shut down. ?We thought we had bought duds. ?But on getting home I used a stable power supply (and later with new 18650 batteries) it works well. ?Later we heard that the flea market seller was selling 8 year old batteries he had bought cheep as one of our group went back to exchange a defective charger.
?
The says:
?
It is a hungry radio in terms of power consumption. It draws 500mA (4.5 Watts) just when it is turned on and I¡¯ve seen peaks up to 4A on transmit.
?
Your fifteen minutes at 4.5W would mean the batteries were asked to deliver 60W for a quarter of an hour so 4*4.5=18 watt-hours.??
?
suggests a typical 3000 mAh battery is around 11 watt-hours, two would deliver 22 watt-hours.
?
My late night couch math suggests that perhaps the batteries weren't exactly duds, especially if priced accordingly.
?
Sorry if I made any mistakes, corrections are welcome.
?
Either way, I would be interested in the listening time you get on the two fresh 18650 batteries, along with their milliamp-hour specification.
?
--
Regards,
Dave, N1AI