Midland CT990 instruction guide
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Busy channel lockout (BUSY LOCK) - Menu Utilities 29
When this function is enabled, it prevents other radios’ interferences.
If the selected channel is busy, when you press the PTT the radio cannot
transmit.
In standby mode press
Menu Uti 29
; the display will show “
BUSY
LOCK
”.
Press
Menu
to enter the function.
Push
▼
/
▲
or rotate the encoder to select ON or OFF.
Confirm the setting by pushing
Menu
and press
Back
to return to standby
mode.
Keypad lock (LOCK MODE) - Menu Utilities 30
The keypad lock can be activated in two modes: Automatic and Manual.
In Standby mode press
Menu Uti 30
; “
KEYPAD LOCK
” will appear on
the display.
Press
Menu
to enter the function. Push the
▼
/
▲
keys or rotate the encoder
to select
ON/OFF
; press
Menu
again to confirm your selection.
Return in standby condition by pushing
Back
.
The keypad lock can be manually activated/deactivated through the keypad:
keep pressed * .
Side tone (Side Tone) - Menu Utilities 31
The side tone (end tone) allows to eliminate the bothersome tone heard at the
end of transmission.
Side tone can be enabled/disabled.
In Standby mode press
Menu Uti 31
; the display will show “
SIDE TONE
”.
Press
Menu
to enter the function.
Push the
▼
/
▲
keys or rotate the encoder to select
ON/OFF
. Press
Menu
again to confirm your selection.
Press
Back
to return in standby condition.
