Kenwood TK-2260EX - Manual (Page 15)

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Key Lock
Press and hold this key for second to turn the Key Lock
function on. Press and hold this key again for second to
turn Key Lock off. While Key Lock is activated, the following
keys will not function:
Auxiliary key, Side 1 key, Side 2 key, and Microphone PF
keys.
Note: You can still use the following key functions while Key
Lock is activated: Emergency, Monitory Momentary, Monitor
Toggle, Squelch Off, Momentary, and Squelch Off Toggle.
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Lone Worker
Press this key to enter or exit Lone Worker Mode. If no key
is pressed during the time configured for the Lone Worker
interval time in Lone Worker Mode, a Lone Worker tone will
sound. Subsequently, if no key is pressed while the Lone
Worker tone sounds, the transceiver will enter Emergency
Mode.
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Monitor Momentary
Press and hold this key to deactivate QT or DQT signaling.
Release the key to return to normal operation.
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Monitor Toggle
Momentarily press this key to deactivate QT or DQT
signaling. Press the key again to return to normal operation.
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Scan
Press this key to start scanning the transceiver channels.
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Scan Temporary Delete
When Scan pauses at an undesired channel, you can
remove that channel from the scanning sequence by
pressing this key.