Cessna 1980 182Q Pilot's Operating Handbook And Flight Manual page 267

PILOT'S OPERATING HANDBOOK
SUPPLEMENT
17
CESSNA 300 NA V / COM
(TYPE RT-385A)
3. NAVIGATION OPERATING FREQUENCY READOUT.
4. ID-VOX-T SWITCH - With VOR or LOC station selected, in ID position. station
identifier signal is audible; in VOX (Voice) position, identifier signal is sup-
pressed; in T (Momentary On) position, the VOR navigational self-test function is
selected.
5. NAVIGATION RECEIVER FRACTIONAL MEGAHERTZ SELECTOR - Selects
Nav frequency in .05-MHz steps between .00 and .95 MHz; simultaneously selects
paired glide slope frequency and DME channel.
6. NAV VOL CONTROL - Adjusts volume of navigation receiver audio.
7. NAVIGATION RECEIVER MEGAHERTZ SELECTOR - Selects NAV frequency
in l-MHz steps between 108 and 117 MHz; simultaneously selects paired glide
slope frequency and DME channel.
8. COMMUNICATION RECEIVER-TRANSMITTER FRACTIONAL MEGAHERTZ
SELECTOR - Depending on pOSition of 5-0 switch, selects COM frequency in .05-
MHz steps between .000 and .975 MHz. The 5-0 switch identifies the last digit as
either 5 or O.
9. SQUELCH CONTROL - Used to adjust signal threshold necessary to activate
COM receiver audio. Clockwise rotation increases background noise (decreases
squelch action): counterclockwise rotation decreases background noise.
10. COMMC:-':ICATIO:-': RECEI\-ER-TRA:-':S!\1ITTER MEGAHERTZ SELECTOR -
Selects COM f;requency
In
1-..:I.1Hz steps between 118 and 135 MHz.
11. COM OFF-VOL CONTROL - Combination on/off switch and volume control:
turns on NA V / COM set and controls volume of communications receiver audio.
12. BC LAMP - Amber light illuminates when an autopilot's back-course (reverse
sense) function is engaged; indicates course deviation pointer is reversed on
selected receiver when tuned to a localizer frequency. Light dimming is only
available when installed with an audio control panel incorporating the annuncia-
tor lights DAY
I
:-':ITE selector switch.
13. COURSE INDEX - Indicates selected VOR course.
14. COURSE DEVIATION POINTER - Indicates course deviation from selected
omni course or localizer centerline.
15. GLIDE SLOPE "GS" FLAG - When visible, red GS flag indicates unreliable glide
slope signal or improperly operating equipment. Flag disappears when a reliable
glide slope signal is being received.
16. GLIDE SLOPE DEVIATION POINTER - Indicates deviation from ILS glide
slope.
Figure
1.
Cessna 300 Nav/Com (Type RT-385A), Operating Controls
and Indicators (Sheet 3 of 3)
1 October 1979
3