[TowerTalk] Off-topic -- Pro III CW issues

Tony dxdx at optonline.net
Wed Feb 27 01:02:34 EST 2008


All,

Apologies for the off-topic subject -- please reply direct.

The original Icom 756 Pro receiver had an anoying popping sound that 
would show up at the start of each morse element when listening to 
strong CW signals.

The 'pop' was mentioned in the QST product review in 2000 as as 
"characteristic of direct conversion receviers employing audio-based AGC 
systesms" and "the pro has a habit of introducing pops on the make of 
each CW element".

Before purchasing an Icom 756 Pro III, I was told (by Icom) that the 
'popping' issue was addressed, but that's not the case. The problem 
still exists and is especially obvious with fast AGC settings. It's not 
too bad with the internal speaker, but it certainly shows up with 
headphones and some external speakers.

Suggestions appreciated...

Tony -K2MO




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