A normal 25 megahertz shift is used for repeater operation!

SERA runs a 25 meg down shift on all 900mhz GA Repeaters

There are a good bit of 900mhz repeaters in the SouthEast USA!

Most repeaters run full CTCSS do to noise on the band

Repeaters can run as high as 300w output power

Repeater use is line of site LOS as most 900mhz users refer to

Running 30w if not in the general repeater area is needed to ease communications