W5AC at Texas A&M has a 2M repeater on 146.820 co-located with an 800 Mhz PST. The 146.820 transmitter mixes with one of the 800 mhz transmitters and has a direct hit on 146.220. They use split channel guard tones because if in and out tone were the same, the transmitter mix would open the receiver. They could have left tone off the transmitter, but then the co-channel 82 repeaters would be an issue to folks listening. The ham repeater is a MastrII. Seems like they moved the 2M repeater from Kyle Stadium to Rudder Hall and the problem lessened but did not entirely go away.
PS - I called Lloyd Alcorn this morning but got his answering machine - will call back later in the day. Steve NU5D. Jim wrote: > Ron Wright wrote: > >> Nate, >> >> A local, in Tampa, FL, high profile repeater has a similar problem. >> They are on 2 meters along side a 800 MHz repeater which gives them >> interference. They have to live with it. However, it is weak and >> they PL'd their repeater. Since weak the users can over ride and the >> PL only allows the users to bring up the machine. >> > > Wow-an 800 repeater is giving a 2M rx problems? Must be a really crappy > rx! Or the antennas are REALLY close! > -- Ham Radio Spoken Here !!! NU5D EM11 http://www.qrz.com/callsign/NU5D Nickel Under 5 Dollars
