[ICOM] Icom 756PRO Noise Blanker help

John Geiger af5cc2 at gmail.com
Wed Jun 22 17:13:24 EDT 2016


I recently purchased a used Icom 756PRO which is a very nice radio, but it
has something unusual about it.  When I turn on the NB, it makes a noise
like a howling wind or kind of a screetching sound.  That is about the only
way I can describe it.  It only does this on SSB, not on the other modes.
I hear it with my headphones on,and also thru the speaker.  It is
background noise dependent as it disappears if I turn off the preamp.

Have you heard of anything like this, or know what it might be?
73 John AF5CC


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