On 1/4/07, radiomog <[EMAIL PROTECTED]> wrote: > Hi. > > I'd like to know if there is a technology using COTS products to take > multiple repeater audio's at site A and send them via RF link to site > B, to be broken back out to respective repeaters and vice versa. > > "home" to- > link 1 = 29 miles > link 2 = 50 miles > link 3 = 54 miles > > presently we're using a vhf link between home and link 2 > and uhf to link 1/3.
Sounds like you're already using a COTS product to do it? Not sure what you're looking for? If you have three links to get to "home" you need three discreet audio paths. You could do it the way you are, you could do it with microwave hops and T1's with channel banks attached (huge overkill for three audio paths), or you could buy VoIP type products and shoot data from 1 2 and 3 back to home... bunches of ways to link things. Not quite sure what your goal is. It seems from later in your post, you're looking to save on rent/cost/complexity/unknown by not adding antennas at "home" which seems reasonable. If all you're trying to do is save on antennas and tower space at "home", you could use a standard UHF multi-coupler system including isolation for each transmitter and pre-amp to make up for losses for the receivers... and hook that to your UHF antenna. Then you could run a large number of radios on that single antenna if you design it right. Then hook up as many UHF link radios to it as you like... if your UHF antenna there can be omni-directional. More likely, you're needing uni-directional antennas, to make your paths work, so you're going to have to get fancier. With "home" being the high site, a nice omni on UHF shared with multiple link radios there in the cabinet, and yagi's pointed at "home" from the satellite locations seems like it'd work just fine, and save you not having additional antennas on the tower, if that's truly the goal. Is it? Nate WY0X
