T-45C TS, ADV & IUT ENG-21
CNI System
(2) MAN: permits manual selection of
operating frequency using frequency select
switches; RT is disabled during frequency
change
(3) G: RT is tuned to Guard frequency in band
in which set was last tuned (243.0 MHz
UHF or 121.5 MHz VHF)
(4) PRESET: enables selection of any one of
30 preset channels with channel selector
(inner knob). Selected channel displayed
by two center digit readouts on frequency/
channel display
(5) READ: enables selection of any one of 30
preset frequencies with the channel
selector (inner knob). Displays frequency
(rather than channel number) of the preset
channel on frequency/channel display
(6) LOAD: automatically loads into system
memory manual frequency displayed by
selected preset channel
c.
Frequency select switches: used to manually
select desired frequency when frequency
selector in MAN position
d.
FREQ (CHAN) display window: displays digital
readout of selected frequency or channel and
BIT results
e.
UHF AM/FM mode switch
(1) Selects either AM or FM mode when RT is
tuned to frequencies in 225.0 to 399.975
MHz band
(2) Mode selection automatic in all other bands
NOTE: This switch is normally left in the
AM position.
Page 21-16
(9-98) Original
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