JETStream jt270m, User Manual

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You can choose what controls are locked through
Menu 17 as follows:
KEY: Numeric and function keys, keys on the
microphone and the front panel of transceiver,
excluding the “M” key and the
key.
K + S: KEY + DIAL. Nfunction keys +
“CHA+/CHA-/VOL+/VOL- excluding the “M” and
keys
PTT: PTT Key.
ALL: KEY + DIAL + PTT excluding “M” key and
key
Default is K + S.
Keypad Function(Keypad): Menu 18
Menu 18 is set depending on which microphone
shipped with your transceiver. If you received the
DTMF microphone, set this menu to ON. Setting to
OFF will not allow you to use the keys on the DTMF
microphone. If you did not receive the DTMF
microphone, for power conservation, we recommend
you set this menu to OFF. The default setting is ON.
Backlight (Lamp): Menu 19
You can set backlight behavior through Menu 19.
Select from the following settings:
OFF: Backlight is disabled