Hello Ashhar
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I've received my zBITX this morning and have been listening on the bands in different modes. So far all seems to work as expected and it is fun to use this little rig.
But I'm lost by trying to send CW with the built in keyer. I'm not used to Lambic A after using Lambic B for 40+ years. When set to Lambic B you get a straight key. Is Lambic B not yet implemented or have I set something wrong? If not, will this be included in a firmware update?
Taking an additional external electronic with Lambic B keying half the size of the zBITX for portable use was not my plan...
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Many thanks for this otherwise nice rig and for any info
73, Gerald - HB9CEY
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Re: zbitx hung-up on startup
I had a similar thing with the radio hung up after about 30 minutes of operation.? That was with FW 1.02.
After updating to 1.0.4 in RPI and frontpanel all runs nicely.?
--
Tilman D. Thulesius
SM0JZT / Sweden
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Re: Zbitx external microphone recommendations
Hi there
I find it odd that the pinout of the microphone is different from all other radios having 3.5mm stereo connector.?
They "all" do have PTT to tip and ground and microphone to ring and ground. Means that I would need a adaptor to connect up my microphones? :-(
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Tilman D. Thulesius
SM0JZT / Sweden
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Re: ZBitx hangs on startup
The image didnt come through. Can you mail it to be directly?
On Fri, Mar 28, 2025, 2:12 AM Tom Crowley KT4XN 1738 via <crowleytj= [email protected]> wrote:
Ashhar, with a monitor, keyboard and mouse plugged in.? The zBitx screen image remains the same (no change during boot-up).? The monitor shows a normal startup with a window showing what may be an issue.? Rebooted the machine and the zBitx window did not change,
however the monitor showed a normal reboot.? Unable to kill the zBitx program using the normal tools.??
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Pierre,
The manual should be up on the site soon. We're working on revising it to make sure we document all the features on the zBitx.
Meanwhile, please have a look at from Farhan where he documents the functions of the radio.?
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73,
Ragav
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Re: Why? Why in bitx and ubitx is single balanced (2 diodes) mod/demod instead of double balanced??
It was just because, in a modulator, we didnt need to balance out the audio. The audio automatically gets filtered out by the crystal filter
Why in bitx and ubitx is single balanced (2 diodes) mod/demod instead of double balanced?? Just cost?
MAc
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Ashhar, with a monitor, keyboard and mouse plugged in.? The zBitx screen image remains the same (no change during boot-up).? The monitor shows a normal startup with a window showing what may be an issue.? Rebooted the machine and the zBitx window did not change,
however the monitor showed a normal reboot.? Unable to kill the zBitx program using the normal tools.??
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Re: zbitx getting ready to be shipped ...
And mine is coming to me in the UK on Tuesday 1/4/25 (4/1/25).
On Wed, 26 Mar 2025, 15:19 David T-- VE3TOS via , <digiital= [email protected]> wrote: Thats normal it will clear in 2-3 days to Shipped.
On Wed, Mar 26, 2025 at 11:15?AM Bob Benedict, KD8CGH via <rkayakr= [email protected]> wrote: I just got an email from DHL saying that a package from HF Signals is on the way for delivery on the 31st. The HF Signals Order Tracker still says "Packed, ready to go" :/
--
73
??? Bob? KD8CGH
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Why? Why in bitx and ubitx is single balanced (2 diodes) mod/demod instead of double balanced??
Why in bitx and ubitx is single balanced (2 diodes) mod/demod instead of double balanced?? Just cost?
MAc
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On Mar 27, 2025, at 16:43, Ron, N6YWU via groups.io <ron.nicholson@...> wrote:
What's the downside of running the zBitx from a slightly lower voltage?
I have a few LiFePO4 18650 flat tops I got from batteryspace.com. I prefer that chemistry for its lesser fire hazard. LiFePO4 cells only charge up to 3.65V, and run down to around 3.2V. So a pair would only provide somewhere between 6.4 to 7.3V. Me too. So now I have to decide whether it’s better to use them in the simple battery holder, or use the alternative battery holder that I also got, that steps it up to 9V and has a USB-C charger. I guess with 9V I’d get a little more output power, and maybe have to worry about cooling a bit more? But it won’t cause any damage?
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Re: SBITX v3 - Ability to use a Headset for phone modes
Don't stick to a headset with a famous brand name, they usually don't work for this purpose.
I decided to buy a good working headset that has worked well for others. It's true that its name doesn't appear in alsamixer, and all the switches and sliders work fine.
Thanks to JJ for that, which he wrote in message? #109910?? ?. Yes, the important thing is that there should be no error messages. --
Gyula HA3HZ
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It will run all the way down to 5.5v, the output will be much lower, though
On Thu, Mar 27, 2025, 9:14 PM Ron, N6YWU via <ron.nicholson= [email protected]> wrote: What's the downside of running the zBitx from a slightly lower voltage? ?
I have a few LiFePO4 18650 flat tops I got from .? I prefer that chemistry for its lesser fire hazard. LiFePO4 cells only charge up to 3.65V, and run down to around 3.2V.? So a pair would only provide somewhere between 6.4 to 7.3V.
73, Ron, n6ywu
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What's the downside of running the zBitx from a slightly lower voltage? ?
I have a few LiFePO4 18650 flat tops I got from batteryspace.com. ?I prefer that chemistry for its lesser fire hazard. LiFePO4 cells only charge up to 3.65V, and run down to around 3.2V. ?So a pair would only provide somewhere between 6.4 to 7.3V.
73, Ron, n6ywu
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Glad the Settings Editor helped you!
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My recommendation is to write down your calibration settings and reinstall CEC 1.2. My V2.0 (beta) was primarily targeted at supporting more modern MCU's (e.g. teensy, pico, etc.)As such, the size of the software increased slightly to achieve the goals of 32 bit and portability. Consequently, some "standard" options that are available under CEC 1.2 (primarily WSPR, but some other settings that you would normally get to in "console" mode too), were disabled on Nano's to fit the software. After re-installing 1.2, you can transfer the calibration settings if they do not come across.
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There is no increase in functionality for 2.0 vs 1.2 for Nano users. ?That is the reason for my recommendation.
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73
Mark
--
AJ6CU/7
KD8CEC 2.0, Nextion Screens,? and open source uBITX Raduino boards for Arduino IOT, BLE, RP2040, Teensy 4.0, and Raspberry Pi Pico
https://github.com/aj6cu
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Re: zbitx hung-up on startup
Mine, as received yesterday does the same.? There is a small weak buzz in the speaker about every 5 sec as well.? See attached screenshot.?
73 de Thomas LA3PNA.? With Best regards, Thomas S. Knutsen.
?Please? avoid sending? me? Word? or? PowerPoint? attachments.
Tom, It shows the tubes only on the HDMI screen. Does the software run on the HDMI screen? If it doesn't run, then there will be a black terminal window (on the HDMI screen) with?some error message. Do you get any? - ff
On Thu, Mar 27, 2025 at 9:04?AM Tom Crowley KT4XN 1738 via <crowleytj= [email protected]> wrote:
It never displays the tubes, although if I plug a monitor into the HDMI, it shows the tubes.? The zbitx continues to display the screen shown.
Tom Crowley KT4XN
What does it show on the screen? Can you send us a screenshot of your HDMI screen about 30 seconds after it displays the "tubes"?
On Thu, Mar 27, 2025 at 7:28?AM Tom Crowley KT4XN 1738 via
<crowleytj= [email protected]> wrote:
Updated the firmware.? Plugged in a HDMI screen Still after 10 minutes no joy.? I'll try a few more things, then set it on the shelf and hope a solution shows up.? It's been recycled many, many times still no joy, have the same message that it's booting.
Tom KT4XN
Updated the firmware.? Plugged in a HDMI screen Still after 10 minutes no joy.? I'll try a few more things, then set it on the shelf and hope a solution shows up.? It's been recycled many, many times still no joy, have the same message that it's booting.
Tom KT4XN
As said above mine is 20-30 seconds.??
Have you restarted the radio.?
If that doesn't work.? Try to connect to a monitor via the HDMI cable and connect to the wife and do the updates?
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On Wed, Mar 26, 2025, 8:38?PM Tom Crowley KT4XN 1738 via <crowleytj= [email protected]> wrote:
10 minutes and it's still hung-up with the message.??
Tom KT4XN
Takes 30" to boot with V1.04.
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Charu,
You can use the standard sbitx image and replace the sbitx sources with those from the zbitx repo. The git gurus can do this in a single line, I am told
On Thu, Mar 27, 2025, 4:37 PM Charudatt Uplap via <charudattu= [email protected]> wrote: Raghav,? Is there any chance that you can upload the SD card image , zipped, on some site.
You have one uploaded for sBITX.
de Charudatt VU2UPX?
Gwen, I'm not sure if you have updated your zBitx to the latest software and firmware. To do a firmware update, you will need to follow the procedure mentioned by Farhan in this post. To update the software, you will need to connect the zBitx to an external display, keyboard and mouse, and use the terminal program to run "cd sbitx" (if you're not on the sBitx directory) followed by "./update" to update the software.? ?
You can refer to the Farhan has shared on YouTube for reference.
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Hope this helps.
73,
Ragav
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All,
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Note that posting to this thread will not put you on a list to be notified when the zBITX ordering is open.? ?There will be a post for the group when orders are accepted.? See this post:
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You can send an email to HFSignals to get a private notification.
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I have no affiliation with HFSignals.? I read almost all of the posts.
73
Evan
AC9TU
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Raghav,? Is there any chance that you can upload the SD card image , zipped, on some site.
You have one uploaded for sBITX.
de Charudatt VU2UPX?
Gwen, I'm not sure if you have updated your zBitx to the latest software and firmware. To do a firmware update, you will need to follow the procedure mentioned by Farhan in this post. To update the software, you will need to connect the zBitx to an external display, keyboard and mouse, and use the terminal program to run "cd sbitx" (if you're not on the sBitx directory) followed by "./update" to update the software.? ?
You can refer to the Farhan has shared on YouTube for reference.
?
Hope this helps.
73,
Ragav
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Re: Zbitx external microphone recommendations
If you are looking for a solution thats POTA/SOTA friendly, you can try either one of these three options:
1. 3d print a portable microphone such as
2. Buy a cheap microphone (like cheap baofeng microphones) from amazon, snip the exisitng connector and solder a 3.5mm TRS stereo connector.
3. Go for a DIY solution such as the ones seen .?
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The wiring is similar to the uBitx and sBitx radios. The PTT switch connects to ring and sleeve. The microphone connects to tip and sleeve.?
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73,
Ragav
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Tilman, SM0JZT
Andrew Wade UK
HA3HZ
