Derek, Take a look at this one. You can build your own and by choosing components you can can handle all the power you want: <http://home.datacomm.ch/hb9abx/duplexer.html>
and for hf-6/2/70cm: <http://home.datacomm.ch/hb9abx/diplhf6m-vuhf.html> The weak link will be the capacitors and you can build it with small air variables or your choice of better components. The components in this home brew one are about the same you'll find in most amateur grade diplexers these days. As for amateur grade diplexers, I've had good results with the Comet 2/70cm unit with SO-239 connectors on my 2 meter and 70 cm repeaters. I also had a problem with the units that had pigtails... stay away from them. 73, Tony W4ZT derek_mcintyre wrote: > > Hello Group, > Does anyone have, or know where I can get plans to homebrew a 144/440 > MHz crossband coupler (aka "diplexer") ?? I would like to find > something with wideband characteristics (ie, low pass, high pass) > such as some of the diamond or comet models, but needs to be able to > handle 100 watts FM continuously from each band, without excessive > loss and without duplex noise, or little capacitors smoking. Any > suggestions, other than the Telewave models that cost over $300? > > Thanks, > KC4FWC > > > > > > > > > Yahoo! Groups Links > > > > > > > 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/
