[TenTec] adding xtal filter to the Orion

[nq4i at contesting.com]

Hi Kim. It is a rcvr problem not transmitter. When 2 stations are on the same band there is an inherent noise generated in either rcvr that can be supressed. Currently the Orion transmitter is one of the cleanest transmitters on the market. My aim is to allow a second rcvr to hear at a lower level than the current s4 level. I am not a design engr but am relating what I know and what io hear. It maybe that to achieve that would require transmitter filtering. But some improvement can be had by addressing the rcvr.  Rick
Sent on the Sprint® Now Network from my BlackBerry®

-----Original Message-----
From: Kim Elmore <cw_de_n5op at sbcglobal.net>
Sender: tentec-bounces at contesting.com
Date: Mon, 27 Feb 2012 14:48:53 
To: nq4i at contesting.com<nq4i at contesting.com>; Discussion of Ten-Tec Equipment<tentec at contesting.com>
Reply-To: Discussion of Ten-Tec Equipment <tentec at contesting.com>
Subject: Re: [TenTec] adding xtal filter to the Orion

Now I'm puzzled. If the problem is noise/distortion from an offending transmitter, no amount of filtering in the rx will help that. If the transmitter is radiating in the rx pass and, the transmitter has to be cleaned up. 

I must be missing something...?

Kim N5OP



On Feb 27, 2012, at 13:09, nq4i at contesting.com wrote:

> Hi Barry. It would be a band specific filter with about 5 khz of response. Sherwood Engineering made a special order version abt 20 years ago. The good thing about the Orion is it is one of the cleanest transmitters made. Right now my signal leve from the second station is approximately s4. Reducing that by 40 db or more would open up the other rcvr a lot. So the filter would be before every stage in the rcvr.   Rick
> Sent on the Sprint® Now Network from my BlackBerry®
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