[ICOM] RE: 756Pro3 Noise Floor

[Adam Farson]

Hi Phil,

XFC is a different case. Pressing XFC not only shifts the receiver to the
transmit frequency; it also disables NR (and auto-notch, if that feature is
activated). This causes the noise floor to rise.

If you turn off NR and then press XFC, you will hear no difference in the
audio noise level. 

Cheers for now, 73,
Adam VA7OJ/AB4OJ


-----Original Message-----
From: icom-bounces at mailman.qth.net [mailto:icom-bounces at mailman.qth.net] On
Behalf Of Phil Cooper
Sent: 16 January 2006 09:28
To: ICOM Reflector
Subject: [ICOM] RE: 756Pro3 Noise Floor

Hi Ed, and all...........

You mentioned the difference in the noise floor when listening to the sub
VFO.

I have noted the same quirk when working split, and pressing the XFC button
to listen to the other VFO.
Try that, and see if you hear the same thing as you describe.

For example, I am listening to DX on 14.021, and have the Pro in SPLIT mode,
with a Tx frequency of 14.024.
If I press the XFC button to listen to my Tx frequency (to see if I am
Tx'ing in the clear), then the audio appears harsher, and possibly noisier
than on my main VFO.

I would be interested to know if you had any direct replies to your email,
and also whether you have the same quirk as me.

Best 73

Phil GU0SUP



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