It's a concern with every radio (RF getting into logic/wires).? With
HT's is a disaster!?? I've
seen RF lock up my pi/audio in all of my radios.? The ftm100 in the
truck a couple of times,
the FTM400 in the shack once, and with the Yaesu HT, *
every*
time.? It doesn't even survive
one transmission.
HT's are unique in that the ground wire is generally the other half
of the antenna, and that
ground wire extends into the audio interface.?? I've never seen the
Pi Zero lock up, as it
always seems to impact the audio interface, which stops responding
or times out.
The fix, in every situation is a large ferrite bead around the
ptt/audio/ground cable
between the radio and the pi/audio interface.? 100% fix in my
experience.
Not all beads are equal, these seem to work in particular?
if it helps,
-craig
KM6LYW
On 9/24/21 2:33 PM, J K via groups.io
wrote:
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Yeah, it¡¯s a pretty common issue. ?After I posted basically the
same exact question a few weeks ago, seen it raised again at least
once before yours. ?At least you now know what¡¯s causing it and
that it¡¯s relatively easily fixable. ?I should have the Fe-Pi
clone here is a couple more days. ?Apparently it¡¯s a non-issue
when you use a GPIO audio device instead of USB. ?Once I got it
stable, it¡¯s been rock solid thigh. ?Enjoy your setup. ?:-)?
11 Max Pro
