[Lowfer] Oddity, 27.255 MHz.

[craig wasson]

Kurt;

I assume this is the carrier frequency over time while they talk on AM?
What are the scales - how many Hz is it varying by - and how many seconds
long is that capture you attached?

One guess is instability of the power supply, oscillators or transmitter
under modulation - but I would expect a more analog looking display and
parts of that variance look digital.   It could be bad equipment if it's a
flaw built in to a popular radio that lots of people have.

Next guess would be some sort of data under voice - like call sign, some
sort of trunking, selcall, etc - but it really does not look regular enough
to be a digital signal.

Thanks - Craig, N6IO


On 16/08/04 12:32 AM, KD7JYK DM09 wrote:
>
>> Three people have similar odd traces under their voice, once could be bad
>> equipment, but three?  Ideas?
>>
>>
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