4. Other Radio Settings
Frequency Zones - 900MHz
Setting
Description
Description:
This parameter divides the available band (902 MHz to 928 MHz) into smaller
bands.
l
In this case 16 smaller bands each consisting of 5, 7, and 8 frequency
channels are created depending on the frequency zone.
l
These 16 zones are stored in a Word, which is made up of 16 bits
numbered 0 to 15.
l
When shown in LSB to MSB, these bits directly represent the zones
that the radio operates on from lowest frequency to highest.
l
A value of
1
in the bit sequence instructs the radio to operate within the
represented band.
l
A value of
0
instructs the radio to bypass the represented band.
Important!
: This feature should only be used with the standard
hop table.
l
Set the
Hop Table Version
to
902-928 MHz
when using
Frequency
Zones
.
l
When selecting another
Hop Table Version
, the limitations of that
selection are also applied to the hopping pattern.
Example
: If
916-920
is selected as the
Hop Table Version
, only the
middle of the band is available in the pattern. Then, if Frequency Zones
5, 6, 7, 8, and 9 are set to
0
, NO allowable frequencies are available for
the radio to use.
Warning!
FCC regulations require a minimum of 50 separate channels be used within a hop
pattern. Use the table below to determine the number of frequency zones required for legal
communication.
Example
:
1. Using zones 1-7 is equal to 49 channels; this is not legal according to the FCC.
2. Using Zones 0-6 is equal to 50 channels; this is legal according to the FCC.
Zone Number
Beginning Freq. (MHz)
Ending Freq. (MHz)
Number Of Channels
1
902.2464
903.8592
8
2
904.0896
905.4720
7
Page 58 of 131
LUM0008AG Rev Sep-2015
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