47 C.F.R. § 22.759
Power limit for BETRS.
Cite as 47 C.F.R. § 22.759 (2026)
The effective radiated power of central office and rural subscriber station transmitters used in basic exchange telephone radio systems must not exceed the limits in this section.
(a)
Maximum ERP.
The effective radiated power (ERP) of central office and rural subscriber station transmitters in BETRS must not exceed the applicable limits in this paragraph under any circumstances.
Frequency range (MHz)
Maximum ERP (watts)
152-153
1400
157-159
150
454-455
3500
459-460
150
(b)
Height-power limit.
The ERP of central office stations in BETRS must not exceed the amount calculated as follows:
ERP
w
= 557,418 ÷ h
m
2
where ERP
w
is the effective radiated power in Watts
h
m
is the average (eight cardinal radial) antenna height above average terrain in meters