[ICOM] IC-756PRO

[Adam Farson]

Hi Kelly,

There is an issue in the 756Pro which causes the noise blanker to impress a
low-frequency ripple on the R8V rail feeding the receiver audio chain. Here
is the fix:

http://www.ab4oj.com/icom/756pro_nb/main.html

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 ve4xt at mts.net
Sent: 22 September 2006 12:26
To: icom at mailman.qth.net
Subject: [ICOM] IC-756PRO

Hi all,

I have an IC-756PRO (not II not III, just PRO) with what appears to be a
systemic issue: when the noise blanker is engaged in CW, strong nearby
signals thump the passband.

It's as though the AGC was pumping in response. Is this something others
have noticed?

Turning the NB off appears to cure the problem, but until I noticed that, I
was starting to have reservations about this radio for CW.

Thoughts?

73, kelly
ve4xt



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