[TenTec] Orion Filters

[Richard Detweiler]

Scott,

Many have found the 500 Hz filter to degrade some performance ( abt 6db ) 
due to some issues with an amplifier placed inline with the filter when it 
was selected,  It should be noted that the 'optional' filters and the stock 
filters have a 'slightly' different center frequency, so they can not be 
moved around in the slots.

It was found that putting a 762 filter (a 600Hz filter centered for the 
stock filters) in the 1Khz filter position essentially restored that 6db of 
performance,  It's not that noticable in casual situations, however, in 
heavily crowded CW contesting situations,  its the difference of getting 
that noise floor signal next to a big gun and not hearing it at all.  I got 
mine in when it wasn't listed, you had to request it and build the filter as 
a kit.  It really does help...  Now you can buy them from Inrad plug and 
play.

The Orion II solves this problem and I'm looking forward to seeing first 
hand the results of their efforts.

Best wishes,
Rich
K5SF

>From: "Scott Harwood" <scotth at hsc.edu>
>Reply-To: scotth at hsc.edu,Discussion of Ten-Tec Equipment 
><tentec at contesting.com>
>To: Discussion of Ten-Tec Equipment <tentec at contesting.com>
>Subject: [TenTec] Orion Filters
>Date: Thu, 28 Jul 2005 10:39:58 -0400
>
>I have a question for the forum.  As a relatively new owner of the Orion, I 
>am somewhat confused by the discussions on filters.  I bought mine with the 
>optional 288 (1.8 MHz), 285 (500 KHz) and 288 (250 KHz) filters installed 
>at the factory.
>
>I have been reading quite a bit on this site about the Inrad 762 Filter and 
>how it enhances performance ( possibly better than the Ten-Tec filters).
>
>Am I better off ditching one or more of the above filters and getting the 
>Inrad?  If so, why?
>
>Thanks,
>
>Scott K4VWK
>
>
>
>
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