That's news to me. I've run a 6-meter repeater for years and had involvement for years before that. The split in our region is 1 MHz, although you can get some pairs at 500 kHz if you really want one there.
Chuck WB2EDV > The repeater is a motorola micor station lo-band repeater retuned to > the 6 meter band running 100 watts. The 1.7 mhz is the new aloted band > plan split for 6 meter band in the US.
