Cessna TURBO CENTURION T210M 1978 Pilot Operating Handbook page 253

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PILOT'S OPERATING HANDBOOK
SUPPLEMENT
SSB HF TRANSCEIVER
(TYPE ASB-125)
SECTION 2
LIMITATIONS
There is no change to the airplane limitations when this avionic
equipment is installed. However, the pilot should be aware of the two
following radio limitations:
1.
For sideband operation in the United States, Canada and various
other countries, only the upper sideband may be used. Use oflower
sideband is prohibited.
2. Only AM transmissions are permitted on frequencies 2003 kHz,
2182 kHz and 2638 kHz. The selection of these channels will
automatically select the AM mode of transmission.
SECTION 3
EMERGENCY PIROCEDURES
There is no change to the airplani~ emergency procedures when this
avionic equipment is installed.
SECTION 4
NORMAL PROCEDURES
COMMUNICATIONS TRANSCEIVER OPERATION:
1.
2.
3.
4.
5.
6.
7.
XMTR SEL Switch -- SELECT transceiver (on audio control
panel).
SPEAKER/PHONE (or AUTO) Switch -- SELECT desired mode
(on audio cont_rol panel).
ON-AUDIO Control -- ON (allow equipment to warm up for 5
minutes for sideband or one m:inute for AM operation and adjust
audio to comfortable listening level).
Channel Selector Control -- SE:LECT desired frequency.
Mode Selector Control -- SELECT operating mode.
Squelch Control -- ADJUST the audio gain counterclockwise for
normal noise output, then slowly adjust clockwise until the
receiver is silent.
Clarifier Control -- ADJUST when upper single sideband RF
signal is being received for maximum clarity.
3