Radio Shack PRO-93 Owner's Manual page 76

Frequency
511.750
Note: Some cities use the 470–512 MHz band for land/
mobile service.
Conventional Systems Band — Locally Assigned (in
6.25 kHz steps)
Frequency Range
851.0125–855.9875 MHz
Conventional/Trunked Systems Band — Locally As-
signed (in 6.25 kHz steps)
Frequency Range
856.0125–860.9875 MHz
Trunked Systems Band — Locally Assigned (in 6.25 kHz
steps)
Frequency Range
861.0125–865.9875 MHz
Public Safety Band — Locally Assigned (in 6.25 kHz
steps)
Frequency Range
866.0125–868.9875 MHz
33-Centimeter Amateur Band (902-928 MHz in 6.25 kHz
steps)
Frequency Range
902.000–928.000
76
A General Guide to Frequencies
Channel Frequency
20
Channel
Service
CSB
Service
CTSB
Service
TSB
Service
PSB
Service
HAM