[TenTec] Inrad filters

Bob McGraw - K4TAX RMcGraw at Blomand.net
Fri Feb 6 21:08:15 EST 2009

I've had two Omni VI Plus radios.  In each case I had a 1.8 KHz and a 500Hz 
in the N-1 and N-2 slots with the 1.8KHz, 500 Hz, and 250 Hz filters in the 
6.3 MHz IF slots.  Never wanted for anything else.  Also, never had a 
concern for S meter accuracy with these filters.

As I recall there are some jumper settings for gain adjustment to compensate 
for the filter loss as associated with the N-1 and N-2 positions.

Bob, K4TAX

----- Original Message ----- 
From: "Jim Brown K9YC" <k9yc at audiosystemsgroup.com>
To: <tentec at contesting.com>
Sent: Friday, February 06, 2009 12:27 AM
Subject: Re: [TenTec] Inrad filters

> On Thu, 5 Feb 2009 14:45:01 -0600, Paul DeWitte wrote:
>>I have a 219 filter in my Omni VI+ and I think that it has too much loss. 
>>do not know if all 219 filters have this much loss or it is just a bad
> The narrower Inrads have a lot of loss. It's specified on their data 
> sheets. The
> only thing about that that's ever bothered me is that it causes the 
> S-meter in my
> TS850 to read lower than it otherwise would. I've never used Inrads in an 
> Omni of
> any vintage.
> 73,
> Jim K9YC
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