Difference between revisions of "Uniden Band Plan Entry"

Revision as of 16:18, 13 October 2008

Custom Band Plans (800 Custom, VHF, UHF) require that you enter both a lower and an upper base frequency value. 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 Base_n = Base_n + (Offset_n+1 - 1 - Offset_n)*Step_n Where:

For example: Custom Frequency Table

Lower Base 1 = 155.415 MHz

Upper Base 1 = 155.415 MHz + (436 - 1 - 380) * 15kHz

Upper Base 1 = 155.415 MHz + 55 * 15kHz

Upper Base 1 = 155.415 MHz + 0.825 MHz = 156.240 MHz

Lower Base 2 = 157.200 MHz

Upper Base 2 = 157.200 MHz + (454 - 1 - 436) * 12.5 kHz

Upper Base 2 = 157.200 MHz + 17 * 12.5 kHz = 157.4125 MHz

Lower Base 3 = 157.470 MHz

Upper Base 3 = 157.470 MHz + (759 - 454) * 15 kHz

Upper Base 3 = 157.470 MHz + 305 * 15 kHz = 162.045 MHz

@@ Line 7: / Line 7: @@
 For sites with multiple band plans, you need to calculate the upper base frequency for each entry.
-Upper Base(n) = Base(n) + (Offset(n+1) - 1 - Offset(n))*Step( n)
+Upper Base<sub>n</sub> = Base<sub>n</sub> + (Offset<sub>n+1</sub> - 1 - Offset<sub>n</sub>)*Step<sub>n</sub>
 Where:
-Base(n) is the lower base frequency for the entry.
+* Base<sub>n</sub> is the lower base frequency for this entry.
-Offset(n+1) is the Offset for the next band plan (for the last table, use 760)
+* Offset<sub>n+1</sub> is the Offset for the next band plan (for the last table, use 760)
-Offset(n) is the offset for this band plan
+* Offset<sub>n</sub> is the offset for this band plan
-Step(n) is the step for this band.
+* Step<sub>n</sub> is the step for this band.
 For example: