> You did an excellent job of explaining the complex > interrelationships among > 2m repeaters. However, not all 6m repeaters have a 1 MHz split; my 6m > repeater on Tranquillon Peak follows the California band plan > and has a 500 > kHz split. The duplexer has four cans about 12" in diameter > and five feet > tall. > > 73, Eric Lemmon WB6FLY
Even at 500 kHz split, 100+ dB is more than enough isolation on channel center on 6m. Using simple frequency scaling (not to say that's truly the way to compare, but it gives a rough approximation), that would be like 1.4 MHz split on 2m with the same (100 dB) isolation. 500 kHz on 6m is about 0.9%, still more than twice as much as 0.4% on 2m with 600 kHz split. --- Jeff WN3A