[ICOM] Changes in the Filtering of the Icom IC-775DSP
Hans Remeeus
hans at remeeus.nl
Mon Apr 11 10:11:20 EDT 2005
Thanks Anders.
>When DSP is set to off, the TX audio is passed thru the FL-96 and FL-80.
This was one of the reasons why I changed the FL-80 with the FL-70.
Local HAM's did notice the difference before and after the change. It gave
me a more natural voice.
Perhaps I change the FL-96 with the Inrad #124 2800 Hz filter. Excellent
shape factor of 1.5!
73,
Hans Remeeus (PA1HR)
http://www.remeeus.nl
Communication is about people, the rest is technology.
----- Original Message -----
From: "Anders Janis SM4RNA" <sm4rna at telia.com>
To: "ICOM Reflector" <icom at mailman.qth.net>
Sent: Monday, April 11, 2005 9:45 AM
Subject: Re: [ICOM] Changes in the Filtering of the Icom IC-775DSP
Nice pictures!
I have only changed FL-96 to Inrad 109. And CFW455HT to Kiwa 6kHz.
As I have understood by the service manual, the transmitted audio in SSB is
passed thru the 6kHz filters when the DSP is on in TX. So it is the DSP that
control the TX range. When DSP is set to off, the TX audio is passed thru
the FL-96 and FL-80.
73 de Anders SM4RNA
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