User Manual

INSTRUCTION FOR USE
Hold down POWER button
approx. 2 seconds until RED
LED turns on. Then release
button.
RED LED will remain on at a
lower intensity if your unit
hears other unit(s) in the
same group; otherwise the
RED LED will be extra bright.
04
TURN ON
Hold down POWER button
approx. 2 seconds until RED
LED flashes 3 times. Then
release button.
All LEDs are off in power
down mode except battery
charging indicator.
TURN OFF
Press UP button to move up
one level at a time until
desired level.
GREEN LED flashes once
unless maximum level is reached.
There are 6 volume levels.
VOLUME
UP
Press DOWN button to move
down one level at a time until
desired level.
GREEN LED flashes once
unless minimum level is
reached.
VOLUME
DOWN
Press AUX button until
GREEN LED flashes 3 times.
Continuous slow blinking of
RED LED indicates microphone
being muted. When microphone
is muted, other Yapalong units
cannot hear you but you can
hear the others.
MIC MUTE
Press AUX button until
GREEN LED flashes 3 times.
RED LED slow blinking stops.
Back to normal operation.
MIC
REACTIVATE
Hold down AUX button then
press UP button to move up
one level at a time until
desired level.
GREEN LED flashes twice
unless maximum level is
reached. Increase microphone
sensitivity if you want to speak
softly in a quiet environment.
There are 5 sensitivity levels.
INCREASE
MIC
SENSITIVITY
Hold down AUX button then
press DOWN button to move
down one level at a time until
desired level.
GREEN LED flashes twice
unless minimum level is
reached. Decrease
microphone sensitivity when
background noise is loud.
Speak closer to the
microphone to compensate.
DECREASE
MIC
SENSITIVITY
Press power button momentarily forces the unit to re-establish
sync with the rest of the group.
FORCE
SYNC
LIGHT INDICATIONS
MIC SENSITIVITY ADJUSTMENT
FORCE SYNC TO RESUME
05
Solid with extra
brightness
Out of range indicator. Your unit cannot receive
RF signal from any unit in the group. Power on
other units, or move closer to each other.
After the radio is taken out of range and brought back into range, its
communication to the group will resume automatically. If the communication is
not resumed immediately, as indicated by extra bright red LED light, you may
press POWER button 1-3 seconds on this radio to force the sync. Restart the
radio is also a good way to resume the communication.
MIC sensitivity sets the minimum
level of sound loudness that the
microphone can pick up. The higher
MIC sensitivity is, the slighter sound
is picked up by the microphone. It is
good practice to lower MIC sensitivity
in a noisy environment so that other
users will not hear so much
background noise.
Yapalong4000 MIC sensitivity is divided into 5 levels. The default level is 4.
Press Up/Down and AUX buttons simultaneously to adjust MIC sensitivity. Be
sure not to press AUX button alone, which will mute the radio.
RED LED
Solid
Battery is fully charged.
GREEN LED
Solid
Battery is being charged.
AMBER LED
Flash every 2 seconds
Battery is low.
AMBER LED
Flash every 5 seconds
Battery is very low. Then the unit
turns off automatically.
AMBER LED
Up/Down
Button
Aux Button
MIC
Sensitivity
POWER UP A GROUP
Power on one of the radios at the location where the radios to be used. Wait
until the red light of the radio becomes solid, then power on the rest radios.
Power on all the radios at the place where they will be used. It is not
recommended to power on all the radios at one location (e.g., locker
room), then use them at another (e.g., football field). This is needed because
the radios auto scan the surroundings for the cleanest channel upon being
powered on.