[RFI] FM Wireless Mic on 144.160MHz

[Raymond Benny]

Alex,

I've have worked with my church sound system and have a list of our
different wireless system frequencies.

On the list I see one, Sound Mate - Personal Listening System that
transmits on 72.30, CH1. This system offers at least 3 other channels but I
don't know their Tx frequencies. Perhaps you could search the internet and
find those frequencies.

I believe the Tx power is in milliwatt range, but if they use a different
antenna mounted high enough perhaps it could cause interference.

Hope this helps.

Ray
N6VR/W7YA



On Fri, Aug 28, 2020, 7:58 PM Tom <k8tb at bosscher.org> wrote:

> There is a good possibility that the 144.16 is not the primary
> frequency, but a sub-harmonic of the output (times 4, 5  or 6). Time to
> be a good neighbor, and help them with it. Many folks, for whatever
> reason, think that only they can receive their particular wireless
> microphone. When I show them that I can hear it on a $ 30 radio, they
> are stunned.
>
> But do let them know they have a problem.
>
> Tom K8TB
>
>
> >>> A local church has a FM microphone that is transmitting on
> >>> 144.160MHz, and I can also hear it 20kHz above and below that
> >>> frequency. I'm not sure if 144.160MHz is the principal signal or if
> >>> it's some mixing product. Would anyone know what brand/model
> >>> wireless microphone would cause this?
>
>
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