Difference between revisions of "Uniden Band Plan Entry"
From The RadioReference Wiki
m |
|||
Line 38: | Line 38: | ||
|} | |} | ||
− | Lower Base 1 = 155. | + | Lower Base 1 = 155.4150 MHz |
− | Upper Base 1 = 155. | + | Upper Base 1 = 155.4150 MHz + (436 - 1 - 380) * 15kHz |
− | Upper Base 1 = 155. | + | Upper Base 1 = 155.4150 MHz + 55 * 15kHz |
− | Upper Base 1 = 155. | + | Upper Base 1 = 155.4150 MHz + 0.825 MHz = 156.2400 MHz |
− | Lower Base 2 = 157. | + | Lower Base 2 = 157.2000 MHz |
− | Upper Base 2 = 157. | + | Upper Base 2 = 157.2000 MHz + (454 - 1 - 436) * 12.5 kHz |
− | Upper Base 2 = 157. | + | Upper Base 2 = 157.2000 MHz + 17 * 12.5 kHz = 157.4125 MHz |
− | Lower Base 3 = 157. | + | Lower Base 3 = 157.4700 MHz |
− | Upper Base 3 = 157. | + | Upper Base 3 = 157.4700 MHz + (759 - 454) * 15 kHz |
− | Upper Base 3 = 157. | + | Upper Base 3 = 157.4700 MHz + 305 * 15 kHz = 162.0450 MHz |
Revision as of 14:29, 27 January 2017
Custom Band Plans for VHF and UHF analog or mixed mode trunk systems require that you enter both a lower and an upper base frequency value (P25 systems do not require a bandplan, as that information is carried on the control channel). Here's how to determine these values.
For sites with a single band plan:
Lower Base Frequency: Base Frequency as provided in the RRDB Upper Base Frequency: Lower Freq + (759-Offset) *step
For sites with multiple band plans, you need to calculate the upper base frequency for each entry.
Upper Basen = Basen + (Offsetn+1 - 1 - Offsetn)*Stepn Where:
- Basen is the lower base frequency for this entry.
- Offsetn+1 is the Offset for the next band plan (for the last table, use 760)
- Offsetn is the offset for this band plan
- Stepn is the step for this band.
For example: Custom Frequency Table
Base | Spacing | Offset |
---|---|---|
155.4150 | 15.0 | 380 |
157.2000 | 12.5 | 436 |
157.4700 | 15.0 | 454 |
Lower Base 1 = 155.4150 MHz
Upper Base 1 = 155.4150 MHz + (436 - 1 - 380) * 15kHz
Upper Base 1 = 155.4150 MHz + 55 * 15kHz
Upper Base 1 = 155.4150 MHz + 0.825 MHz = 156.2400 MHz
Lower Base 2 = 157.2000 MHz
Upper Base 2 = 157.2000 MHz + (454 - 1 - 436) * 12.5 kHz
Upper Base 2 = 157.2000 MHz + 17 * 12.5 kHz = 157.4125 MHz
Lower Base 3 = 157.4700 MHz
Upper Base 3 = 157.4700 MHz + (759 - 454) * 15 kHz
Upper Base 3 = 157.4700 MHz + 305 * 15 kHz = 162.0450 MHz
Return to Wiki page: