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Re: High pitch whine on ShariPi4U


 

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Ok, I¡¯ll give that a shot, thanks.. The antenna is the one included with the kit from kits4hams, so I didn¡¯t think it would be a problem since others seem to be running the same device and I¡¯ve not seen a lot of issues with it.

73 de K6EF

On Mar 17, 2025, at 5:06?AM, wr2uhf via groups.io <tpwaterman@...> wrote:

This is RF getting into your audio from the antenna. Chokes on the power cord aren't in this path.?

Experiment with different antennas, particularly a half wave. Try getting a small mag mount with a cable and put the antenna further away from the node.

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