[Icom] Need Ic746 filter advice

Tue, 10 Dec 2002 19:12:25 -0800

Hi Mike,

As you already have the FL-223, the companion FL-222 (or the Inrad 314, 2.1
kHz or 322, 1.8 kHz) will offer better selectivity with correct PBT
operation. You will then have a 1.8 kHz SSB bandwidth setting for use  in
crowded band conditions.

The base filter set at 2.8 kHz is about as wide as you should go in the
receiver. 3.3 kHz filters will degrade selectivity. The FL-223 and FL257
will not work well together; the Twin PBT will not operate correctly.

Best 73,
Adam, VA7OJ/AB4OJ
North Vancouver, BC, Canada
http://www.qsl.net/ab4oj/
Icom FAQ Site:
http://www.qsl.net/icom/

-----Original Message-----
From: [email protected] [mailto:[email protected]]On
Behalf Of SkunkWeed
Sent: December 10, 2002 15:01
To: [email protected]
Subject: [Icom] Need Ic746 filter advice

Hello.
I got a chance to buy wide SSB filters for my Icom.
FL257 and (or) FL103.
I got already FL223.
Can I use FL223 and FL257 together?
Is there possibility to switch between them to go narrow or wide?
Or should I remove FL223 and put both wide SSB filters together, or
only one of them? Which one 9Mhz or 455kHz? 2.8 or 3.3kHz?
Which one will be better for wide receiving? I think 3.3, but is it
not too wide?

Thanks for replys, Mike SP5QIP