Knox County Amateur and FRS/GMRS Frequencies

Knox County ham operators normally use the amateur repeaters that are on Lenfest Mountain in Washington and Benner Hill in Rockland. These repeaters are linked and have slightly different coverage areas. If for some reason the repeaters are out of service (for example, from storm damage) the ham operators will use point-to-point simplex communications on the primary simplex frequency. For those with scanners, useful information may be obtained during weather events. Frequencies to monitor are:

  • 147.060 MHz or 145.490 MHz (Linked Repeaters)
  • 147.540 MHz (Primary Simplex)

There are 3 regular nets on the system plus one that gets activated during significant weather events. Here is the schedule:

Net Name Times Primary Purpose
Chimes Net Daily at 8:00 PM Chat net
Knox County ARES/RACES-CERT Net Tuesday at 7:00 PM For ARES/RACES-CERT members
Pre-Chimes Traffic Net Saturday at 7:30 PM Formal messages in to/out of Maine
Knox County Community Emergency Service Net On the hour when activated Storm net

While the Family Radio Service (FRS) and General Mobile Radio Service (GMRS) operate under different sets of FCC rules, they are unique in that many of the channels (frequencies) may be used by both services. This level of interoperability does not exist between other radio services such as Marine, Public Safety, CB or Amateur Radio.

Complete FRS & GMRS Channel Chart


Channel Frequency FRS Power GMRS Power Notes
1 462.5625 2 W 5 W Shared FRS/GMRS
2 462.5875 2 W 5 W Shared FRS/GMRS
3 462.6125 2 W 5 W Shared FRS/GMRS
4 462.6375 2 W 5 W Shared FRS/GMRS
5 462.6625 2 W 5 W Shared FRS/GMRS
6 462.6875 2 W 5 W Shared FRS/GMRS
7 462.7125 2 W 5 W Shared FRS/GMRS
8 467.5625 0.5 W 0.5 W Shared FRS/GMRS Low Power
9 467.5875 0.5 W 0.5 W Shared FRS/GMRS Low Power
10 467.6125 0.5 W 0.5 W Shared FRS/GMRS Low Power
11 467.6375 0.5 W 0.5 W Shared FRS/GMRS Low Power
12 467.6625 0.5 W 0.5 W Shared FRS/GMRS Low Power
13 467.6875 0.5 W 0.5 W Shared FRS/GMRS Low Power
14 467.7125 0.5 W 0.5 W Shared FRS/GMRS Low Power
15 462.5500 2 W 50 W Shared FRS/GMRS Repeater Output
16 462.5750 2 W 50 W Shared FRS/GMRS Repeater Output
17 462.6000 2 W 50 W Shared FRS/GMRS Repeater Output
18 462.6250 2 W 50 W Shared FRS/GMRS Repeater Output
19 462.6500 2 W 50 W Shared FRS/GMRS Repeater Output
20 462.6750 2 W 50 W Shared FRS/GMRS Repeater Output
21 462.7000 2 W 50 W Shared FRS/GMRS Repeater Output
22 462.7250 2 W 50 W Shared FRS/GMRS Repeater Output
467.5500   50 W Repeater Input (Output + 5.0 MHz)
467.5750   50 W Repeater Input (Output + 5.0 MHz)
467.6000   50 W Repeater Input (Output + 5.0 MHz)
467.6250   50 W Repeater Input (Output + 5.0 MHz)
467.6500   50 W Repeater Input (Output + 5.0 MHz)
467.6750   50 W Repeater Input (Output + 5.0 MHz)
467.7000   50 W Repeater Input (Output + 5.0 MHz)
467.7250   50 W Repeater Input (Output + 5.0 MHz)