Re: Noisy Pi4 - particularly on 2m
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I have heard that the HDMI on a Pi can cause a lot of noise. Try running headless if you can and see if the noise problem goes away.
From: RaspberryPi-4-HamRadio@groups.io [mailto:RaspberryPi-4-HamRadio@groups.io] On Behalf Of Clark Martin
Sent: Tuesday, June 2, 2020 4:00 PM
Subject: Re: [RaspberryPi-4-HamRadio] Noisy Pi4 - particularly on 2m
A simple, possible, fix is to wrap any cables around a ferrite toroid (one per cable) as close to the Pi as you can. Also wrap the power cord around one as close as possible to the wall wart. That is two ferrites , one at each end.You may not need to shield it if you can prevent the cabling from being antennas.
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On Jun 2, 2020, at 10:59 AM, Steve <steve@...> wrote: