Re: [amsat-bb] DCI Bandpass Filters

["John Stephensen, KD6OZH" <kd6ozh@xxxxxxx>]

The DCI 430-440 MHz filter will eliminate any intermod from outside the ham
band. A cheaper and smaller alternative, if the problem is from BC stations,
is to install a 144/432 MHz diplexer. The 432 MHz port is a high-pass filter
and should eliminate everything from 200 MHz and down.

John
KD6OZH

----- Original Message -----
From: <K5OE@aol.com>
To: <amsat-bb@AMSAT.Org>
Sent: Monday, 18 December 2000 02:43 UTC
Subject: [amsat-bb] DCI Bandpass Filters


> Hi all.
> I get a considerable amount of intermod near the UO-14 downlink frequency
> when I run my preamp.  Believe it or not, it seems to be mostly from AM
> broadcast stations.  I never really noticed it before, but then the Fugi's
> are 800 kHz higher and AO-27 is almost 2 MHz higher and the problem seems
to
> disappear above 435.5 MHz.  Anyone have any experience with the
DCI-435-10C
> filter?  At almost 2 kg and 300 mm long, it certainly would be a problem
up
> on the mast.  Please reply directly.
> Thanks es 73,
> Jerry, K5OE
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