Spread Spectrum Wireless Data Transceiver User Manual
(3)
F
REQUENCY
Z
ONE
Frequency Zone: The idea of frequency zoning is to divide the available band (902MHz to 928 MHz) into
smaller bands, in this case 16 smaller bands each consisting of 7 Frequency channels. These 16 Zones are
stored in a Word, which is made up of 16 bits numbered 0-15. These bits when displayed LSB to MSB
directly represent the zones that the radio will operate on from lowest frequency to highest. A value of ‘1’ in
the bit sequence will instruct the radio to operate within the represented band. Likewise, a ‘0’ value will
instruct the radio to bypass the represented band. This feature should only be used with the standard hop
table.
Binary Zone Number (LSB First)
Beginning Freq. (MHz)
Ending Freq. (MHz)
Number Of Channels
0 902.2464
903.6288
7
1 903.8592
905.2416
7
2 905.4720
906.8544
7
3 907.0848
908.4672
7
4 908.6976
910.0800
7
5 910.3104
911.6928
7
6 911.9232
913.3056
7
7 913.5360
914.9184
7
8 915.1488
916.5312
7
9 916.7616
918.1440
7
10 918.3744
919.7568
7
11 919.9872
921.3696
7
12 921.6000
922.9824
7
13 923.2128
924.5952
7
14 924.8256
926.2080
7
15 926.4384
927.8208
7
Frequency Zones are activated through the setup menu. To enable zoning from the main setup menu of
the radio:
1.
Select Menu
3
“Edit Radio Transmission Characteristics”
2.
Select Option
0
“FreqKey”
3.
Select
F
“For More”
4.
Select Option
3
“Frequency Zone”
Enter
1
to enable desired frequency zone and a
0
to disable desired frequency zone. Frequency Zone
entries begin with 0 (LSB) and continue through 15 (MSB).
LUM0002AD Version
6.1
32
