Retevis RT602 Manual Del Usuario página 4

4. Keyboard lock
Long press M key to enable keypad lock in order to
prevent accidental operation.
5. Switching function
With radio on, press M button to enter the menu
setting; Pressing once until current channel begins
to flash can enable channel option. Press UP/DOWN
key to select a channel. Pressing twice until a number
flickers on the top right hand corner can enable
CTCSS/CDCSS Interference Eliminator Code option.
Pressing three times enables VOX function. You can
turn it off or select 3 levels of sensitivity level. Pressing
four times enables call tones(Group 1-10). To select
a call tone, press UP/DOWN key. To turn on or off
keypad tone, press five times. Pressing six times
enables the roger tone feature. To return to standby
mode, press seven times. To change the setting of
relative function in this stage, press UP/DOWN button
again. Press PTT to confirm the function or the radio
will exist menu after 15 seconds.
6. Setting Channel
Refer to operation of Menu function or select the
function with radio on until the channel number blinks.
Then, press UP/DOWN button to set desired
channel (EU Channel 01-08 ).
7. CTCSS/CDSS Interference Eliminator Code Option
Refer to the function of the operation for Menu button
or press Menu button twice with radio on until the
channel number, for example 01, blinks on the top
right hand corner. Then, press UP/DOWN button to
set desired combination(OF position is to switch off
CTCSS/CDCSS. Codes 01-38 are CTCSS codes
while codes 39-99 CDCSS codes.)
Note: Interference eliminator codes could only
protect the equipment from the interference from
unwanted signals but cannot prevent from
eavesdropping. When this option is disabled, signals
can be received on the same channel with or without
interference eliminator code . While, signals can only
be received on the same channel and same
interference eliminator code as the other radio and
completely irreverent signals will be filter out if the
interference eliminator code option is enabled.
8. VOX
Refer to the function of the operation for Menu button
or press Menu button three times with radio on until
the number 03 flashes( which means VOX sensitivity
level 3) .Press UP or DOWN button to set VOX
sensitivity level.
Level 3 - High Sensitivity for low background noise level
Level 2 - Medium Sensitivity for most environments
Level 1 - Low Sensitivity for high background noise level
NOTE: 1. There is short delay between the time you
start talking and when the transmission is mad.
• When VOX option is enabled, PTT will automatically
shut off and the radio transmit without need of
pressing PTT button.
• It will be two seconds before the radio stops
transmitting at the end of the talk.
9. Setting call tone
Refer to the function of the operation for Menu buttons
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