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@sbcglobal.net>
Sender: tentec-bounces@contesting.com
Date: Mon, 27 Feb 2012 14:48:53
To: nq4i@contesting.com<nq4i@contesting.com>; Discussion of Ten-Tec
Equipment<tentec@contesting.com>
Reply-To: Discussion of Ten-Tec Equipment <tentec@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@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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