Radio Shack PRO-89 Owner's Manual page 22

Air
Frequency Range (MHz)
108.000–136.9875
Amateur Radio
Group
1 29.000–29.700
2 50.000–54.000
3 144.000–148.000
4 420.000–450.000
Marine
Channel
06
07
08
09
10
11
12
13
14
15
16
17
18
22
Frequency Range (MHz)
Frequency (MHz)
156.3000
156.3500
156.4000
156.4500
156.5000
156.5500
156.6000
156.6500
156.7000
156.7500
156.8000
156.8500
156.9000
Step (kHz)
12.5
Step
(kHz)
5
5
5
12.5