At 3/25/2009 14:19, you wrote: >Why is their output 15 KHz away from your input? Is someone upside-down?
No, that is our bandplan, & is by design. >Sounds like a bad coordination... even 100 miles away, if one or both ends >are on high sites. Nope. We routinely place repeaters less than 50 miles apart 15 kHz away & have no adjacent channel interference. One of our more recent coordinee's systems was built by me & has outputs + AND - 15 kHz from his input only 30 miles away. No ACI. >A 5 KHz deviated signal doesn't really "fit" into 15 KHz of "channel" space, >this is well-known. ...which is why we mandate 4.2 kHz peak deviation, along with a modulation bandwidth spec of 3 kHz max w/-20 dB rolloff @ 4.4. kHz. Bob NO6B
