Re: 23cm interference
Dave - G4RQI
I post this in case you find yourself with the same issue. This morning I think we identified the Mini DisplayPort to HDMI cable as the culprit. Placing a hand over the device reduced the noise and unplugging it eliminated the noise altogether. The device appears to produce a carrier on 1297.750 with sidebands spaced in multiples of 66Khz.
Is anyone using a DisplayPort to hdmi device without any issues. If so what make and model is it?
We have managed to reduce the signal strength by bypassing a KVM. Wurth clip on ferrite good to Ghz made no difference. COVID restrictions meant this was all done over the phone so not ideal.
From: UKMicrowaves@groups.io <UKMicrowaves@groups.io> on behalf of David Redman <davidredmang4idr@...>
Sent: Saturday, December 12, 2020 9:15:55 PM
To: UKMicrowaves@groups.io <UKMicrowaves@groups.io>
Subject: Re: [UKMicrowaves] 23cm interference
Well done Dave
At least you have found it
Good luck resolving the issue
On Sat, 12 Dec 2020, 19:22 Dave - G4RQI, <io93ir@...> wrote: