At 9/3/2008 23:03, you wrote: >Dave, > >I think his point is the FCC doesn't set policy on repeater splits. If >you're not going to get coordinated, you can make up anything you want, >but in an interference dispute with a coordinated machine, you'll lose. > >I've often wondered if it would be possible to get all hams with 2M >repeaters to switch to a wider split. Sure would make duplexers work better. > >73, >Paul, AE4KR
Not only would the duplexers be smaller/cheaper/lower loss, but duplexing in an environment full of nonlinear consumer electronics devices would be much easier. I can run my 2.82 MHz split 2 meter portapeater from my home with no desense, but operating a standard 600 kHz split system is impossible without several dB of desense. The interference I get + or - 600 kHz away from the TX has been traced to within the neighbors' residences on either side of me. Whatever it is it's video related, as it shows up at 15.75 kHz spectral intervals. However, it tails off once you get over 1 MHz away from the TX. By +/- 2.82 kHz it's a non-issue. Similar problem at another site in a mountain community with a leaky cable system; no problem with the 5 MHz split UHF system at that site, though. Yes these things can be fixed at the source, but a wider split would have avoided the problems completely. Bob NO6B
