Peter, Look here it will give you some guidelines
http://www.rfsolutions.com/duplex.htm Robert / KD4PBC From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Peter Dakota Summerhawk Sent: Monday, August 25, 2008 11:46 AM To: [email protected] Subject: [Repeater-Builder] Need some help- M-10 related OK, got the M-10's in the mail yesterday and will have to get them over to the shop to program them. What I got for a freq spread is: 151.835 and 153.020 so I can t use a duplexer and will have to run a dual antenna system. How far apart do I have to mount these to make sure they work ok? I have a Motorola RICK to use and want to have the units programmed for around 15 watts or so that way I don't burn out the radios when we really need it. I am thinking that the 153.020 is going to be repeater input and the 151.835 is the output. I will be running DCS on the system to avoid problems with the system. The radios (CP200) are going to be programmed with MDC1200 signaling as the supervisors carry a HT1250 so they can see who keys up and if there are any problems. I need some help on getting the antennas set up and I can program the rigs for the repeater use so no problem there. Thanks Peter Summerhawk-N0WRE
