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A
∫
B
To DC IN 4.5V
C
Antenna
+/–
D
MIC SP jack
@ jack
TALK
E
Power Sources
The unit can be powered by batteries or a car
battery.
Installing Batteries
Fig. A)
Flip up the antenna and detach the belt clip if
attached before inserting the batteries.
1
Open the lid of the battery compartment.
2
Insert three size AA (R6) batteries (not
Size AA (R6)
supplied) with correct polarity as shown
in the illustration.
3
Close the lid.
Battery life
Using size AA (LR6) Sony alkaline batteries:
Approximately 40 hours*
* Battery life when the unit is used continuously,
repeating sets of 30-second transmission, 30-
second reception, and a 9-minute Power-Save
To a cigarette lighter
standby. Battery life varies with temperature
socket
conditions, and may be shorter especially in
colder areas.
When to replace the batteries
When n flashes in the display, replace all three
batteries with new ones.
When the batteries have been
replaced
Your current channel and group number setting
will be erased. Set them again.
To check battery power
Press LIGHT/BATT/H lightly (shorter than 2
seconds) when the power is turned on.
POWER
The battery power indication will light up for about
15 seconds, and then disappear. Press again to turn
off the display manually.
Battery power is sufficient.
µ
MODE
Battery power is decreasing.
µ
There is little battery power. The battery
warning beep will start to sound.
µ
Replace the batteries.
When the radio turns off
unexpectedly
LIGHT/BATT/H
If there is no reception for 6 hours, or if you did not
press any key (except LIGHT/BATT/H) for 6
hours, the unit will beep several times and then
CH/GROUP
shut itself off to prevent unnecessary wear of the
batteries (Auto Power Off function).
To turn the unit on again, press POWER.
If the power does not turn on by pressing POWER,
or if the radio turns off unrelated to the Auto
Power Off function, the batteries are exhausted.
Replace them with new ones.
Car battery
Connect the recommended Sony car battery cord
(not supplied).
• For details, see the Operating Instructions of the
car battery cord.
• The display will light up when the unit is
powered by the car battery.
• When the DC IN 4.5V jack is not being used, close
VOL
the rubber cap securely to ensure water-
resistance.
Notes
• The unit will not run on batteries as long as the
DC IN 4.5V jack is plugged in.
• Use only the recommended car battery cord.
Using any other car battery cord may cause
MIC
damage to the unit.
Speaker
Polarity of the plug
Operation
The unit has three transmission modes: the Basic
mode, Group Talk mode and the Search mode. The
explanation here is for the Basic mode. For the
other transmission modes, see "Switching
(See
transmission modes".
For the Basic mode, you first need to decide on a
channel number with the member(s) of your group.
Preparation
(See Fig. C)
1
Flip up the antenna.
The antenna rotates 180 degrees. Adjust the
antenna so that it is vertical to the ground.
2
Press POWER to turn on the power.
If "H" is displayed, key protection is active.
Press LIGHT/BATT/H for 2 seconds or
longer to disable key protection.
3
Press MODE repeatedly so that neither
nor
is displayed.
The unit goes into the Basic mode.
4
Switch CH/GROUP to CH, and press
+/– to select the channel.
Set the unit to the same channel as your group
member(s).
Each press of + or – will increase or decrease,
respectively, the channel number by one. Hold
down either button to change the channel
continuously.
Transmission
(See Fig. D)
1
To transmit, hold down TALK and speak
into the MIC (microphone).
Keep the MIC at about 2 inches from your
mouth and speak in your normal voice.
During transmission, the transmission status
indicator will repeat the following indication.
2
To receive, release TALK.
Adjust the reception volume with VOL.
To continue transmission
Repeat the steps for transmission above.
Notify the person at the other end that you are
switching to reception with the word "over". Then,
release TALK. When the person on the other end
finishes with "over", hold down TALK again to
respond.
On the Power-Save mode
When there is no reception for about 8 seconds
during the reception mode, the unit automatically
goes into the Power-Save mode, and will consume
less battery power. The unit will automatically exit
the Power-Save mode when there is reception.
(See Fig. B)
To end transmission
Notify the person on the other end that you are
ending the transmission with the word "out". Press
POWER to turn off the power.
If "H" is displayed, press LIGHT/BATT/H for 2
seconds or longer to disable key protection, and
then turn off the power.
To use a speaker microphone or an
earphone
Connect an optional speaker microphone to the
MIC SP jack. Connect an optional earphone to the
@ jack (see the respective Operating Instructions
for details).
Notes
• Do not plug in any other equipment than the
recommended Sony U-ceiver accessories (not
supplied) to the MIC SP or the @ jack even if the
plug seems to be similar, as it may cause damage
to the unit.
• When the jacks are not in use, close the rubber
cap securely to ensure water-resistance.
Switching transmission
modes
This unit has three transmission modes. Select
according to situation.
Basic mode
When there is no intereference.
Group Talk mode When there is interference by
other groups using the same
channel.
Search mode
When you have trouble finding
an unused channel.
Each press of MODE will change the transmission
Initiating Search
mode as follows:
1
Hold down TALK.
The unit searches for an unused channel.
When the unit finds an unused channel, it rings
and sends off a call signal to other members of
Basic mode
Group Talk
Search mode
mode
your group.
Stops at an unused channel...
Basic mode
1
Decide on a channel number (1 to 14)
with the member(s) of your group.
2
Press MODE repeatedly so that neither
nor
is displayed.
The unit goes into the Basic mode.
3
Switch CH/GROUP to CH and press
+/– to select the channel.
2
Release TALK when your unit rings.
4
Transmit.
The ring will continue for about 10 seconds.
Example: When using channel number 5
To stop the call signal manually, press TALK
again. The ringing will stop.
When you receive the call signal
Your unit switches automatically to the same
channel with the unit that sent the call signal, and
will ring. The ring will continue for about 10
seconds.
You can talk with anyone with a Sony or other
Receives the
FRS two-way radio that is within the effective
call signal...
range and is set to the same channel .
In the Basic mode, you can hear transmission
by any other two-way radio on the same
channel that is within the effective range.
Group Talk mode
In the Group Talk mode, the unit communicates
Let the ring sound for about 5 seconds, then hold
only with other units that are on the same channel
down TALK to respond.
and the same group number.
1
• If you do not answer the call while the unit is
Decide on a channel number (1 to 14) and
ringing, the unit goes back to Search standby
a group number (1 to 38) with the
status.
member(s) of your group.
When the transmission is terminated, the unit goes
2
Press MODE repeatedly so that
is
back to Search standby status in about 10 seconds.
displayed and
is not displayed.
Note
The unit goes into the Group Talk mode.
The Search system does not work with models
3
Switch CH/GROUP to CH and press
other than the ICB-U655.
+/– to select the channel.
On channels
4
Switch CH/GROUP to GROUP and press
Two-way radios can only locate other units that
+/– to select the group number.
are on the same channel. Please note that the
5
Transmit.
frequency range may differ with the model of the
two-way radio.
Example: When using channel number 3, group
number 38.
On effective range
The effective range of the unit depends upon
operating conditions, but should cover about 2
miles in suburban areas, with full battery power.
Clarity of transmission may worsen at locations
with heavy car or railroad traffic.
On transmission modes, channel and
When there are a number of groups on the
group number settings
same channel, you can block out transmission
When the unit is turned on by pressing POWER,
of other groups by switching to the Group Talk
the transmission mode, channel and group number
mode. (Transmission of other groups may still
interfere, however, if the other groups use the
settings for the previous transmission will be
same channel and group number).
displayed.
If, however, the batteries have been replaced or the
car battery cord have been plugged or unplugged
Search mode
from the DC IN 4.5V jack since the last transmis-
In the Search mode, the unit will search for an
sion, the channel and group number may change
unused channel and call up the members of your
to 1.
group (i.e., other users with their ICB-U655s set to
the Search mode and to the same group number).
Notes
After first setting the group number, you need to
• You cannot transmit and receive at the same time
initiate Search by sending the call signal.
on this unit, as with telephones.
• Do not touch the antenna during operation, as
Setting the group number
this may reduce sensitivity.
1
Decide on a group number (1 to 38) with
the members of your group.
Other features
2
Press MODE repeatedly so that both
and
are displayed.
Key protection
The unit goes into the Search mode.
Press LIGHT/BATT/H for 2 seconds or
3
Switch CH/GROUP to GROUP and press
longer while the power is on.
+/– to select the group number.
"H" will light up in the display, and the unit will
Example: When using group number 38.
not accept any key operation than the TALK
button and this key.
• If LIGHT/BATT/H is pressed for 2 seconds or
longer while the power is off, the unit will be
protected from turning on accidentally.
• Press LIGHT/BATT/H again for 2 seconds or
longer to disable key protection. "H " will go
off in the display, and the unit will accept all key
The channel number will go into the Search
operation once again.
standby status, and the segments of the channel
number display will light up in a rotating
motion.
Attaching the belt holder
(See Fig. E)
Screw the belt holder onto the main unit as
shown in the illustration.
Select either vertical or horizontal position.
... and sends out
the call signal.
TALK
... and stops at the same
channel as the caller.
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