Date: Fri, 15 Apr 94 04:30:32 PDT From: Ham-Space Mailing List and Newsgroup Errors-To: Ham-Space-Errors@UCSD.Edu Reply-To: Ham-Space@UCSD.Edu Precedence: Bulk Subject: Ham-Space Digest V94 #93 To: Ham-Space Ham-Space Digest Fri, 15 Apr 94 Volume 94 : Issue 93 Today's Topics: OSCAR MODE S Send Replies or notes for publication to: Send subscription requests to: Problems you can't solve otherwise to brian@ucsd.edu. Archives of past issues of the Ham-Space Digest are available (by FTP only) from UCSD.Edu in directory "mailarchives/ham-space". We trust that readers are intelligent enough to realize that all text herein consists of personal comments and does not represent the official policies or positions of any party. Your mileage may vary. So there. ---------------------------------------------------------------------- Date: 13 Apr 94 23:39:09 GMT From: mdisea!mothost!schbbs!news@uunet.uu.net Subject: OSCAR MODE S To: ham-space@ucsd.edu In article , wb8k@barf80.nshore.org (Dennis jakubisin) says: > >Anyone know of an inexpensive (less that the $300+ commercial converters) >way to get on Mode S. How about converting some of the TVRO LNA/B's down >in freq?? TVRO LNA's are a bit unstable for narrow band signal work. The two most popular approaches to getting on Mode S are the SSB electronics 2.4 GHz down-converter or the Down East Microwave (DEM) down-converter. I operate on Mode S using the DEM setup. I use a three foot Ku dish (Wineguard) , a DEM low noise preamp and the DEM down-converter. The preamp is needed due to the length of coax between the dish feed and the weather proof housing I use for the down-converter. The SSB reportedly is weather-proof and can be mount at the feed point of the antenna. The cost of the DEM gear is ~$140 for the preamp and ~200 for the down-converter, if my memory serves me. The SSB system is about $400, as I remember. Down East Microwave advertises in QST as does the US rep for SSB Electronics. Good luck! Ned Stearns AA7A ------------------------------ End of Ham-Space Digest V94 #93 ******************************