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Re: [TenTec] INRAD Omni VI roofing filter kit - success

To: <tentec@contesting.com>
Subject: Re: [TenTec] INRAD Omni VI roofing filter kit - success
From: "Chuck Guenther" <ni0c@earthlink.net>
Reply-to: tentec@contesting.com
Date: Fri, 14 Jan 2005 06:31:00 -0600
List-post: <mailto:tentec@contesting.com>
N6KB wrote:
"I understand why someone with a non plus or version 3 upgraded Omni VI would 
want the Inrad modification, in order to get another narrow 1st IF filter 
option."


The "non plus" Omni VI has only one NAR filter switch, which can be either on 
or off, so options are limited.  I have my Inrad roofing filter hooked up so 
that it is switched in along with my downstream 9 MHz IF filter, when the NAR 
switch is engaged.  The only way to gain another option would be to keep the 
NAR switch hooked up as-is (which is tempting as there is little slack in the 
cable), and hard-wiring the relay on the roofing filter to V+, so that it is 
engaged as soon as the rig is turned on. The disadvantage of doing it this way 
would be that your mode options would be limited by the bandwidth of the new 
roofing filter.

With the VI+, or Opt. 3, two NAR switches are available (one additional bit of 
information), so there are four possible switch combinations to provide 
filtering "options."

73,

Chuck  NI0C
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