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Section 3
Specifications
32 OMEGA Installation, Operation, and Maintenance Manual
Cellular Transceiver Interface
The cellular transceiver meets the AMPS standard and conforms
to the specifications below:
Model number: Wireless Link CVDM-3
with data and voice
interface module
Operating Frequency: 824 to 893.9 MHz
Number of Channels: 832
Operating voltage: 10.9 to 14.5 volts
DC current requirements: 1.5 amp @ max. transmit
power, 100 ma @ stand-by
RF output power: 3.0 Watts maximum
Antenna impedance: 50 ohms
Antenna type: 50 ohm, Omni-directional
VSWR is 1:2.0 or better
over operating frequency
Battery Operation
OMEGA is equipped with a maintenance-free rechargeable
battery for continuous operation without interruption in the event
that power to OMEGA is disabled.
Battery type: Rechargeable, Lead-Acid,
maintenance free
Nominal output voltage: 12.0 to 12.8 Volts
Charge voltage: 13.2 to 13.8 Volts
Current capacity: 1.2 amp-hours minimum at
25
°
C
Expected operation life: 5 years
Operating temperature: -40 to +70
°
C