[1000mp] noise increase in GEN mode

Tue, 5 Feb 2002 17:13:26 -0500

Just a theory...

Within the ham bands, there are probably additional tuned circuits in the
front end, if for nothing else, to reduce wideband noise and perhaps
desensing from strong and/or out-of band signals.  Once you tune outside an
amateur band, these circuits are switched out, making the front end more
broad banded/more open to noise.

I "just" have the original 'MP (Sept, 2000).  I'll go down and try it out.
I'd imagine that mine does the same thing.  Interesting.

73

Bill / K8DXX

----- Original Message -----
From: "Pete Smith" <[email protected]>
To: <[email protected]>
Sent: Tuesday, February 05, 2002 8:25 AM
Subject: [1000mp] noise increase in GEN mode

> I was just checking my line noise situation after some work by the power
> company yesterday, and noticed something interesting.  On 80 meters, as
> soon as I tune below 3500 kHz and the GEN light comes on, there is a
> dramatic increase (several S units) in the noise level.
>
> Does anyone know the workings of the 1000MP/Mark 5 well enough to suggest
> where this extra gain is coming from?  Just curious.
>
> 73, Pete N4ZR
>
> Sometimes a tower is
> just a tower
>
>
>
>
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