- 1. Re: Topband: Xtal Filter +1 (score: 1)
- Author: "Petr Ourednik" <indians@xsmail.com>
- Date: Wed, 04 Jan 2012 10:04:00 +0100
- Hi all, I believe You are looking for something like tunable xtal front-end preselector which I build for several of my ham friends years ago and posted there: http://www.radio.qrp.cz/1/clanky06/pres
- /archives//html/Topband/2012-01/msg00046.html (8,515 bytes)
- 2. Re: Topband: Xtal Filter +1 (score: 1)
- Author: Sam Morgan <k5oai.sam@gmail.com>
- Date: Wed, 04 Jan 2012 06:33:04 -0600
- thanks Petr, here is that link through google translator for English http://translate.google.com/translate?hl=en&sl=cs&u=http://www.radio.qrp.cz/1/clanky06/preseletor.htm&ei=tUUET6qfL4Ti2QW1wNW5Ag&sa
- /archives//html/Topband/2012-01/msg00047.html (9,602 bytes)
- 3. Re: Topband: Xtal Filter +1 (score: 1)
- Author: Bill Cromwell <wrcromwell@gmail.com>
- Date: Wed, 04 Jan 2012 10:21:02 -0500
- Hi, I am chasing a different solution to my noise problem. I am building receivers with high level diode ring double balanced mixers up front. I have a commercially made transceiver (Atlas 180) that
- /archives//html/Topband/2012-01/msg00048.html (10,612 bytes)
- 4. Re: Topband: Xtal Filter +1 (score: 1)
- Author: "Rick Karlquist" <richard@karlquist.com>
- Date: Wed, 4 Jan 2012 10:06:08 -0800
- I don't see how noise overload of the receiver front end can be an issue. You can simply add front end attenuation such that the external noise just overcomes the receiver's internal noise. It would
- /archives//html/Topband/2012-01/msg00056.html (9,900 bytes)
- 5. Re: Topband: Xtal Filter +1 (score: 1)
- Author: Bill Cromwell <wrcromwell@gmail.com>
- Date: Wed, 04 Jan 2012 16:13:57 -0500
- Hi, I don't think the front end xtal filters are a bulletproof fix, either. They might contribute to a solution. Come to my shack when the guy over in the body shop starts up his welder. He isn't in
- /archives//html/Topband/2012-01/msg00059.html (9,622 bytes)
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