Hi OH how I wish I lived in the USA. In the UK we can't do any of what you say, no links, no split tx rx infact our 70Cm band is on a secondary basis, the military have priority and no new 70Cm rptrs have be licenced for a good few months.
73 Steve ----- Original Message ----- From: "Erik Finskas" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Thursday, March 16, 2006 7:51 AM Subject: Re: [Repeater-Builder] Re: 6mtr duplexer > steve wrote: > > yes a strange band is 6mtrs. I like it and in the past have worked good dx, > > with psk31 and CW to the states. > > There is in the UK a repeater on 29Mhz wonder what duplexer that uses ?. > > Split site is very common on 10m and 6m repeaters, there's no need for > man-size duplexers then. We're using NBFM links on 70cm and 23cm for > connecting the sites. > > Repeater logic sits where the actual band receiver is. So there is a > site with 10m or 6m receiver and a link transmitter. Link transmitter is > keyed as it would be the normal TX of the repeater. > > At the other end, link receiver and the actual band (10m or 6m) > transmitter are slaved, and the TX keys with COS or PL decide > information of the link receiver. This way the link path gets ID'd as it > just relays all of the repeater traffic and ID's given out on actual band. > > As both 10m and 6m acts very differently from 2m, we're looking at > having voted or diversity enabled receivers on the receiver side. Having > for instance polarisation diversity, signals with deep fading > (multipath propagation etc) can be cancelled quite well. > > W1OJ is a good example of a working 10m repeater, I recall someone told > that it has several receivers to cancel multipath fading and other > propagation related disturbance. > > .. > Erik OH2LAK > [EMAIL PROTECTED] > > > > > > > > > Yahoo! Groups Links > > > > > > > > > -- > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.1.385 / Virus Database: 268.2.4/282 - Release Date: 15/03/06 > Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
