GE MDS Mercury 900, Reference Manual

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05-4446A01, Rev. E Mercury Reference Manual 69
NOTE: Frequency Mode Static Hopping on Access Points requires
TDD Sync Mode GPS Required.
Channel/Frequency Allocations for Single Channel 900 MHz
are shown in
Table 3-1 . The transceiver uses up to 14 channels
(0-13) depending on the bandwidth used (1.75 MHz or 3.5
MHz).
• RF Bandwidth —View/set the radio’s RF operating bandwidth.
Radios are factory-configured for either 1.75 MHz or 3.5
MHz maximum bandwidth. Determine the factory configu-
ration of a radio by viewing the “CONFIG” number on the
label at the bottom of the radio. 1.75 MHz units will have a
Configuration string starting with
HGA/R9N1
, and 3.5 MHz
units will have a string starting with
HGA/R9N3
.
The bandwidth setting on this menu does not necessarily
have to match the configured bandwidth of the radio, but it is
limited by it. That is, you can set a 3.5 MHz radio to either
1.75 or 3.5, but you can only set a 1.75 MHz radio to 1.75.
Note that setting a 3.5 MHz bandwidth radio to operate at
1.75 MHz bandwidth will cause a slight degradation of inter-
ference rejection capability. Note that this parameter is
read-only when
Frequency Mode is set to Hopping w/Hand-offs .
[ 1.75MHz, 3.5MHz ]
The Mercury 3650 can operate at 1.75 MHz, 3.5 MHz, 5
MHz, or 7 MHz bandwidth. The unit uses a digital filter so
that any unit can operate at any bandwidth.
Table 3-1. Channel/Frequency Allocations
Channel 1.75 MHz B/W 3.5 MHz B/W
0 903.000000 904.000000
1 904.800000 907.600000
2 906.600000 911.400000
3 908.600000 915.000000
4 910.400000 918.600000
5 912.200000 922.400000
6 914.000000 926.000000
7 916.000000
8 917.800000
9 919.600000
10 921.400000
11 923.400000
12 925.200000
13 927.000000