Some info about our system

We are using a Retevis RT97L 25 watt repeater.
Antenna is a Comet CA-712EFC 460-470MHz Base/Repeater Antenna.
Our antenna elevation is around 390 feet about 100 feet above the valley.
Presently we are getting coverage from Willamina down to Dairy Queen.
Unfortunately we have no coverage into the Grand Ronde area due to terrain.