[INRAD] Icom roofing filter status?

[W7RY]

Thanks Charlie. 
Oh well. it was a try. I may contact George and see if I can get him to
order one on 70.4515. I think I would need an additional amplifier
though. Perhaps the one that is used on the 1000MP amplifier board would
work.
 
I'll break out the manual and take a look.
 
73
Jim W7RY
 
 
 
-----Original Message-----
From: Charlie Mazoch Jr. [mailto:w5vin at earthlink.net] 
Sent: Thursday, October 06, 2005 5:21 AM
To: W7RY
Subject: Re: [INRAD] Icom roofing filter status?
 
After looking at a block diagram of a Icom 751A I see the OEM roofing
filter frequency as being 70.4515 Mhz. The Icom 765, 775 and 756 use a
69.0115 Mhz roofing filter after the first mixer. Perhaps I'm wrong or
maybe you're looking at the second IF.  Charlie  W5VIN

W7RY wrote: 
Can anyone tell me what the story is on the Icom roofing filter
progress?  I see that George is working on one for the 765. Any idea if
it will also work in the 751? They do have the same IF.
 
Thanks and 73
Jim W7RY
 





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