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Gyula,
Thanks for your inputs.? ?I am currently working with the manufacturer.? ?My expertise and resources for testing the board locally are limited.
73,
Don
W5MMJ
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On Mon, Jul 22, 2024 at 04:27 PM, Don Judd wrote:
?I currently have an sBitx v3 that is not working properly, essentially noise floor on all bands and no signals.? Was thinking that your version might help me determine if I have a software problem or if the problem is more hardware related.? ?Have
heard about heat concerns with the RPi 4 board which might be a culprit or or possibly a bad sBitx board.
Don,
I think based on your description so far that you don't have a software problem. I would start looking at the hardware.
You need a signal generator with which you give a signal to the input. This should be very small (-80-100 dB) because the device is sensitive, and with an oscilloscope I would continuously step through each stage according to the drawing.
You have to find where the signal disappears.
You can also use a sound generator to test the audio levels.
If you don't have the opportunity to do these tests, find a fellow amateur who can help you with this.
?
A thought: have you already looked for the manufacturer on this topic?
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Gyula HA3HZ
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On Mon, Jul 22, 2024 at 04:27 PM, Don Judd wrote:
?I currently have an sBitx v3 that is not working properly, essentially noise floor on all bands and no signals.? Was thinking that your version might help me determine if I have a software problem or if the problem is more hardware related.? ?Have heard about heat concerns with the RPi 4 board which might be a culprit or or possibly a bad sBitx board.
Don,
I think based on your description so far that you don't have a software problem. I would start looking at the hardware.
You need a signal generator with which you give a signal to the input. This should be very small (-80-100 dB) because the device is sensitive, and with an oscilloscope I would continuously step through each stage according to the drawing.
You have to find where the signal disappears.
You can also use a sound generator to test the audio levels.
If you don't have the opportunity to do these tests, find a fellow amateur who can help you with this.
?
A thought: have you already looked for the manufacturer on this topic?
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Gyula HA3HZ
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JJ
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Could you give more details on the modifications for the pi 5.
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Thanks,
Juan
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Thanks for the additional explanation.? ?I currently have an sBitx v3 that is not working properly, essentially noise floor on all bands and no signals.? Was thinking that your version might help me determine if I have a software problem or if the problem is
more hardware related.? ?Have heard about heat concerns with the RPi 4 board which might be a culprit or or possibly a bad sBitx board.??
Don
W5MMJ
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On Sun, Jul 21, 2024 at 05:40 PM, Don Judd wrote:
I am familiar with the RPi and Balena Etchers and have used them successfully when the file received by others already contained a .img file.? ?What I am having problems with is taking your file folder with various files and knowing how to convert?that to a
.img file.? ? In some cases, the image converter I used did not recognize some of the files which makes me think that only certain compatible files need to be saved in another folder to be converted to an image file.??
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Thanks,
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Don
W5MMJ
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The link to the img is in the wiki article I shared which points to the field day release here ??
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You want the sb64p1.img.xz?file and then follow instructions on the wiki pages. This file is compressed and contains a .img
file.
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-JJ
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On Sun, Jul 21, 2024 at 05:40 PM, Don Judd wrote:
I am familiar with the RPi and Balena Etchers and have used them successfully when the file received by others already contained a .img file.? ?What I am having problems with is taking your file folder with various files and knowing how to convert?that to a .img file.? ? In some cases, the image converter I used did not recognize some of the files which makes me think that only certain compatible files need to be saved in another folder to be converted to an image file.??
?
Thanks,
?
Don
W5MMJ
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The link to the img is in the wiki article I shared which points to the field day release here ??
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You want the sb64p1.img.xz?file and then follow instructions on the wiki pages. This file is compressed and contains a .img file.
?
?
?
-JJ
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I am familiar with the RPi and Balena Etchers and have used them successfully when the file received by others already contained a .img file.? ?What I am having problems with is taking your file folder with various files and knowing how to convert?that to a
.img file.? ? In some cases, the image converter I used did not recognize some of the files which makes me think that only certain compatible files need to be saved in another folder to be converted to an image file.??
Thanks,
Don
W5MMJ
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Show quoted text
On Sun, Jul 21, 2024 at 04:07 PM, Don Judd wrote:
Is available as an image file ready to burn to a microsd card?? I have tried to convert the file source to image but not having any success.? ? Don W5MMJ
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See e?
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-JJ
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On Sun, Jul 21, 2024 at 04:07 PM, Don Judd wrote:
Is available as an image file ready to burn to a microsd card?? I have tried to convert the file source to image but not having any success.? ? Don W5MMJ
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See e?
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-JJ
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Is available as an image file ready to burn to a microsd card?? I have tried to convert the file source to image but not having any success.? ? Don W5MMJ
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After using the sBitx_3.027_JJ version for a few days, I would like to share my positive experiences here.
The AM mode is displayed correctly and it is worth paying attention to the IF regulator, it should be at a low value so that the audio is not controlled too high.
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For the 5-band TX_EQ transmission, there is an equalizer that can be used to correct the error in the frequency course of our microphone. That is, depending on the frequency, the audio level can be emphasized or suppressed during transmission.
The QRO function can be switched on/off if we have included the external PA control option. It is located in /sbitx/data/user_settings.ini.
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The SSB Power Calibration option is present in the /sbitx/data/user_settings.ini file with ssb_val=1.0 as default. If we have the opportunity, we can fine-tune this value. By the way, if you don't know what it's doing, ignore it. You can read about details here: ssb_val and equalization are set as in KX4Z Gordons's development here: /g/BITX20/wiki/36181
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I noticed that the Hamlib fix works correctly, because in previous versions, for example, I switched it off in FT4 mode and when I switched it on again, it didn't see it, only FT8. So the mode switch had to be switched back and forth to get it to indicate correctly. Now everything works correctly.
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The change in the Volume level is immediately noticeable when you first turn it on. Now it is strongly present and the audio levels are also suitable for the input of jtdx, wsjt-x. If someone uses it differently, I will tell them that with jtdx I set the audio input with the IF and Audio controls of sbitx and use it at the lowest possible value.
Overall, I'm happy with the modifications.
Thanks to the development team for this.
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Gyula HA3HZ
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On Thu, Jul 18, 2024 at 12:59 PM, Bob Bennett wrote:
I tried this and got two fatal errors both relating to #include oiled.h: “no such file or directory”
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Bob
NZ2Z
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Only our build works with this.. ?
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If supposedly zBITX is powered by a RPi0-2W then it would make sense if this creation works on that powerplant too
Charudatt?
On Thu, Jul 18, 2024 at 12:55 PM, Charudatt Uplap wrote:
Will the 64bit also work on RPi-0-2W ?
Haven't tried the image on it yet.. It does work on the Pi 5 with minor modifications..
-JJ
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I tried this and got two fatal errors both relating to #include oiled.h: “no such file or directory”
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?
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Bob
NZ2Z
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On Thu, Jul 18, 2024 at 12:55 PM, Charudatt Uplap wrote:
Will the 64bit also work on RPi-0-2W ?
Haven't tried the image on it yet.. It does work on the Pi 5 with minor modifications..
-JJ
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Will the 64bit also work on RPi-0-2W ?
On Thu, Jul 18, 2024 at 08:43 AM, Dino wrote:
Loaded it last night. Seems ok except the cpu temp is running at 70 instead of the 55 I had previously on 3.021.?
more testing to be done.?
It will run a little hotter since we added features which require more processing power. No other way around that other than place active cooling in or around the unit. It should have been designed that way from the start, but We don't work for HF Signals and hve no input on design flaws...
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-JJ
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On Thu, Jul 18, 2024 at 08:43 AM, Dino wrote:
Loaded it last night. Seems ok except the cpu temp is running at 70 instead of the 55 I had previously on 3.021.?
more testing to be done.?
It will run a little hotter since we added features which require more processing power. No other way around that other than place active cooling in or around the unit. It should have been designed that way from the start, but We don't work for HF Signals and hve no input on design flaws...
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-JJ
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On Thu, Jul 18, 2024 at 03:43 PM, Dino wrote:
Loaded it last night. Seems ok except the cpu temp is running at 70 instead of the 55 I had previously on 3.021.?
more testing to be done.?
Please look in the forum messages for what we did to reduce the temperature of the heat-generating components.
The proven method is to replace the insulator of the power-stage FETs with an AlN insulator and cool the RPi from the inside with a 50x50x10 fan (the back of the RPi). For this, the side panel of the sBitx device does not need to be modified. Also, if you use it often, you should also cool the rear cooling fin with an additional fan.
I have these built in and currently the external temperature is high (there is a heatwave), so the CPU temperature starts at 36C when it is switched on. With these coolings, the CPU does not reach 60 degrees C.
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Gyula HA3HZ
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I noticed the same thing on my V3, CPU temp now ?tops out at 70-71.
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Joel
N6ALT
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On Thu, Jul 18, 2024 at 03:29 PM, Nick Kennedy wrote:
I guess this is a Linux question.? I issued the commands given above and received a response saying that I need to commit or stash four files, followed by the message 'abort'.
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I haven't yet changed any files to my knowledge, although I did enter my callsign and grid square.? Does the message and 'abort' status only apply to those four files, so maybe I can ignore it?? Or did it completely abort my update to v3.027???
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If that's the case, how do I modify the update command to cause it to go to completion?
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Thanks / 73
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Nick, WA5BDU
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try
cd sbitx
git stash
./update
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Gyula HA3HZ
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Last night I downloaded and tested on my sBitX V 2. It worked well.
Thank you JJ for all your work on this.
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George VY1GP
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HA3HZ
Bob Bennett
Joel Caulkins/N6ALT