[ICOM] IC-765 compared to a PRO-III

[Jan Robbins]

Interesting report, Dave, and entirely consistent with my own findings 
re the 765 (without roofing filter, compared with up to ProII). 

Have just put the roofing filter in my 775 (it already had all optional 
filters), had it professionally aligned, and then adjusted for best 
noise floor (NOT the Icom-recommended settings, which don't produce  
best noise floor).  Results are stupendous.  I don't have an Orion, but 
I wouldn't hesitate to bet $100 that the thus-modified 775 matches or 
exceeds the third-partry published receiver ratings for that no. 1 radio. 

vy 73 Jan N0JR

Dave Meitzen wrote:

>I bought a IC-765 and put every mod identified on the net in to this puppy.
>Pass band mod., MARS, Look here http://k4ro.net/tcg/misc/Icom-765-1.02.pdf
>I replaced the PLL caps and did a complete alignment. Two of the major mods
>were the Inrad roofing filter and the second 1.8Khz filter enabled by using
>the 250Hz CW switch. I also replaced the 2.4Khz Icom filter with the 2.1Khz
>Inrad.
>
>I also purchased a SGC DSP Speaker - love this thing!
>
>On several occasions I compared the Pro III to the 765 to see if I could
>come close to the Pro III in pulling out a weak signal in a crowded band. In
>some cases (~4 out of 5) it appears the modified 765 with no DSP (well
>accept the SGC Speaker) beat the PRO III.
>
>
>This has been a fun project I thought I would share this experience with
>this esteemed group. Now if I can figure out how to put a big block Chevy in
>it :>))
>
>Best Regards
>Dave AA9TT
>
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