6-26
SECTION 6
OPTIONS
20. Input
Displays selected Input Connector. Selections are ANT (ANTENNA Connector) or
T/R (T/R Connector).
21. Attenuation
Displays selected Input Attenuation. Selections are 0 or 30 dB.
Trunking Data Block is used to set the Repeater parameters that are passed to
the Mobile Radios. This information, as well as the Channel Number (1) and
22. Receive
RF Field
Displays RF Receive Frequency of COM-120C. Value is dependent on Channel
Number (1) and Band Selection (2). Field is for display only. Formula for figuring
value is as follows where Channel # is Channel Number (1):
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Radios operating in 800 MHz Band within range of Canada or
Mexico must use a -12.5 kHz offset.
800 MHz Band Selection (2)
Frequency (MHz) = 851.0125 + [.025 x (Channel # - 1)]
900 MHz Band Selection (2)
Frequency (MHz) = 935.0125 + [.0125 x Channel # - 1)]
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Band Selection is required to test a Mobile Radio.
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