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Transceiver Controls and Functions
EMG & Keypad Lock
To return to the previous operation mode, momentarily press this EMG button
again.
Keypad Lock: Press and hold this button to activate and deactivate the keypad
lock function. The "LOCK" icon shows up on the LCD. The volume knob,
squelch knob and emergency button are working normal during this keypad lock
being operated.
Squelch Adjuster & DSS
DSS: In FM mode, turn the knob counter-clockwise until you hear the click. The
squelch level of your transceiver is dynamically adjusted to get the best receive
condition.
Antenna Connector
EXT Jack
Power 13.2V DC
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10) Emergency Channel and Keypad Lock
Emergency Channel(9/19) : Momentarily press this
EMG button to directly go to the emergence channel.(9 or
19 channel depending on the band where you are now).
The EMG icon will display and only squelch and volume
will work. Other keys and functions are all locked.
11) Squelch Adjuster and DSS
(Dynamic Squelch Tuning System)
Squelch Adjuster: Turn this knob counter-clockwise
until you hear the background noise and then turn the
knob to the opposite direction until the noise disappears.
This way you are able to get the best receive sensitivity.
12) Antenna Connector
Insert the mail connector of the antenna cable into this
female connector.
13) External Speaker Jack
Your external speaker will be activated by connecting
through this jack. This will make your built-in speaker
turned off(The external speaker is not supplied).
14) Power 13.2V DC
Connect your power supply cable to this power connec-
tor.
TCB-900
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