Uniden BC346XT, Руководство пользователя

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CalculatingUpperBaseFrequencies < UnidenMan4 < TWiki
Calculating upper base frequencies
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.
The Lower Base Frequency (or Base ) is always the base frequency as provided in the
RRDB. The Upper Base Frequency is calculated from the following formulas:
For sites with a single band plan:
Base + ( (759 – Offset ) ×
Step )
Where:
●
Base = the lower base frequency listed in RRDB.
●
Offset = the offset for this entry.
●
Step = the step for this entry.
For sites with multiple band plans:
Upper Base
n
= Base
n
+ ( Offset
n+1
– 1 – Offset
n
) ×
Step
n
Where:
●
Base
n
is the lower base frequency for the entry.
●
Offset
n+1
is the Offset for the next band plan (for the last table, use 760)
●
Offset
n
is the offset for this band plan
●
Step
n
is the step for this band.
For example:
Custom Frequency Table
file:///C|/Documents%20and%20Settings/POpitz/My%20Do...e_090515/Manual/CalculatingUpperBaseFrequencies.html (1 of 3)5/26/2009 11:15:48 AM