User Manual

Section 5: Frequency/Channel Calculations
Frequency Ranges
Frequency
Freq.
Range
M
IN MAX
C
HANNEL
STEPS
Max
Channels
LOW 138 MHz 154 MHz 25 kHz 640
Mid 154 MHz 162 MHz 5.0 kHz 1600
HIGH 162 MHz 174 MHz 6.25 kHz 1920
Channel to Frequency Calculation
Channel * Channel Step + Min Frequency = Frequency for Channel
Examples:
- Low Band Channel 20
- 20 * 0.025 + 138 = 138.5 MHz
- Mid Band Channel 300
- 300 * 0.005 + 154 = 155.5 MHz
Frequency to Channel Calculation
(Frequency - Minimum Frequency) / Channel Step = Channel for Frequency
Examples:
- Low Band 151.5 MHz
- (151.5 - 138) / 0.025 = Channel 540
- High Band 172.5 MHz
- (172.5 - 162) / 0.00625 = Channel 1680
QTI Page 13 Revision: C
Form #: 30Z0147 Effective Date: 24 August 2006