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
<*> 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/
