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Re: Looking for thoughts

 

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Hello Mike,

What you describe should be completely possible.? To me, the basic steps would include:

?? - Make sure the antennas between the two radios are as far apart as possible to minimize any possible RF damage on each receiver's input.? Ideally, the two antennas are on different VERTICAL plans to maximize the attenuation.

?? - IC9700
????? - What output pin on some IC9700 connector could be used to indicate that the radio is on?? I'm sure there is something you can use though be careful of voltages.? Arduinos are 5v but Raspberry Pi, ESX32 , etc. are 3.3v.? Consider opto-isolating it i possible to minimize ground loops.

?? - Raspberry Pi:
????? - How do you start direwolf today?? You'll need a check for this "is IC9700 on" signal here
????? - writing a shell / python / etc. script to poll this "is IC9700 on" signal every say 1 seconds and kill/restart direwolf with different configs should be easy.
????? - what OS do you run on your Raspberry Pi?? If Raspberry Pi OS, starting this script via systemd shouldn't be too hard.? You can also start it via rc.local, cron, etc.

I recommend to just break it down into different pieces and then just stitch them all together.? Ultimately, this topic really has nothing to do with Direwolf but you might consider shifting this discussion to the /g/RaspberryPi-4-HamRadio list.

--David
KI6ZHD



Hi All, Im having an issue with my APRS Digi intefering with some other equipment. Im running my APRS Digi, iGate and weather node on a Pi 4 with a NW Digital Draws HAT interfaced with a Kenwood TM-D710A. Every time the Digi fires via RF it desenses the IC-9700 machine to a level its not usable for weak signal stuff. Currently im manually shutting DW down when im using 9700 then starting it up when finished. Id like to automate this process if possible. My immediate though it that i could use a GPIO input to trigger a script which shuts down DW then starts it with a different .conf file that doesnt run the RF digi and only iGates. Optimally Ill be able to provide that GPIO input directly from the 9700 when while powered on. Then when the 9700 is shutdown, the GPIO will go low and a script will then restart DW with the full function .conf.?
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This sounds like an interesting project (I say project as my Linux skills are still in development :)?
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My question is: Does anyone have any ideas how i may accomplish something similar a bit easier.?
?
Thanks,
Mike
W8XLR
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