Instruction Manual

QTI Page 12 of 13 Revision: A
Form #: 30Z0250 Effective Date: 16 December 2009
Section 5: Frequency/Channel Calculations
Frequency Ranges
Frequency
Range
Frequency
Channel
Steps
Max
Channels
Min
Max
Low
138 MHz
154 MHz
25 kHz
600
Mid
154 MHz
162 MHz
5 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 – Min 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