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 TM 55-1905-242-14
0015 00
SEA 330 HF/SSB RADIO
36.
Handset
Functions as both a microphone and as a speaker, much like a telephone
handset.
37.
Speaker
Internal speaker for listening when not using the handset.
38.
CHAN/FREQ Key
Toggles LCD numeric display mode (channel or frequency).
39.
AUX/SEND Key
Enables special functions. When used with the ALRM key, transmits
alarm signal.
40.
Up Arrow/FREQ Key
Increases programmed receiver frequency in 10 Hz steps.
41.
Number Keys 1-9
Used to enter channel/frequency information and, when used with AUX/
SEND key, enable special functions.
42.
Display
Displays operating information for the radio set.
43.
Up Arrow/VOL Key
Increases the receiver volume level.
44.
SQL Key
Toggles squelch ON and OFF.
45.
MODE Key
Selects mode of operation: USB, LST, Telex, AME.
46.
ALRM Key
Transmits alarm signal when used with AUX/SEND key.
47.
Down Arrow/VOL Key
Decreases the receiver volume level.
48.
ENT Key
Executes information entered by numeric keys.
49.
2182/0 Key
Selects the emergency channel (2182 kHz).
50.
Down Arrow/FREQ
Decreases programmed receiver frequency in 10 Hz steps.
51.
PWR
Turns the radio ON and OFF.
0015 00-5
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