I don't even listen to to A or B systems in trunk mode. There isn't really a lot of radio traffic, especially on the North/ Keizer B system. Just Keizer PD. A tower gets dead about 5pm when city services close and its just FD mainly. Scan in conventional mode and lock out the data channel. Rumor has it a new digital 800 TRS radio system is being spec'd out now, for next year.
As for range.. Benton County Fire on 154.340, Linn County Fire 154.130, 154.310 come in great. During the summer months, State Forestry and USFS -Mt Hood / Willamette NF get active. ODOT reception is outstanding all up and down the Willamette Valley. I can pick up ODOT in Cascade Locks all the way south to Eugene.