Cobra Electronics LI 3900DX - Manual (Page 9)

Customer Assistance Warranty Introduction Operation
10 English
Mode Functions
Operation
11 Nothing Comes Close to a Cobra ®
Voice Activated Transmit (VOX)
•
In VOX mode, your microTALK ® radio can be used “hands-free,”
automatically transmitting when you speak. You can set the VOX
sensitivity level to fit the volume of your voice and avoid
transmissions triggered by background noise.
To turn VOX mode on or off:
1. Press the Mode button until the VOX icon
flashes on the display. The current on or
off setting is displayed.
2. Press the Channel Up or Channel Down
button to turn VOX on or off.
3. Choose one of the following:
a. Press the Mode button to enter the
selected on or off setting and proceed
to other functions.
b. Press the Lock/Enter button to enter
the selected on or off setting and return
to Standby mode.
To set VOX sensitivity:
1. Press the Mode button until the VOX icon
flashes and the current sensitivity level
is displayed.
The current sensitivity level is displayed
with letters “LE” and a Number 01
through 03, with Number 03 being the
most sensitive level and Number 01
being the least sensitive level.
2. Press the Channel Up or Channel Down
button to change the setting.
3. Choose one of the following:
a. Press the Mode button to enter
the selected setting and proceed to
other functions.
b. Press the Lock/Enter button to
enter the selected setting and return
to Standby mode.
VOX Sensitivity Level
Mode Button
Channel Buttons
VOX Icon
Mode Button
Channel Buttons
Set DCS Privacy Codes
•
To select a DCS privacy code:
1. After selecting a channel, press the Mode
button until the DCS icon appears and the
small numbers flash on the display
(01 through 83).
NOTE
If CTCSS is turned on at the channel
selected, the display will flash the
DCS icon and “OFF.” To switch from
CTCSS to DCS, press the Channel Up
or Channel Down button while the
display is flashing “OFF.” The display
will then show the small numbers
flashing and you will then be able
to proceed to step 2.
2. Press using the Channel Up or Channel Down
button to select a DCS privacy code. You can
hold the Up or Down button for fast advance.
3. When your desired DCS privacy code is
displayed, choose one of the following:
a. Press the Mode button to enter the new
setting and proceed to other functions.
b. Press the Lock/Enter button to enter the
new setting and return to Standby mode.
c. Do not press any buttons for 15 seconds
to enter the new setting and return to
Standby mode.
Channel Buttons
DCS Privacy Code
Mode Button