Don Here a wireless Mic transmitter 72MHz to 75MHz x2 2nd Harmonic in the
2meter Ham Band
https://www.listentech.com/shop/product/portable-display-rf-transmitter-lt-700-072/
73MikeWB6DJI
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On Friday, August 28, 2020, Don <kb5kwv@gmail.com> wrote:
Check 72.08 to see if it is the second harmonic of a 72Mhz mic or
auditory hearing device. I had one they put in the top of the church,
and it could be heard for a long ways around on the harmonic.
A quick talk to the pastor, and I helped him change the frequency to
something where the second harmonic would not bother.
On 8/28/2020 7:43 PM, Alex wrote:
> Hi there,
>
> 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?
>
> It wasn't much of a problem when they only used it on Sunday mornings,
> but they have a ton of activities now and they use that microphone a
> lot more. Tonight is movie night and the mic is on...
>
> 73,
> --Alex KR1ST
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