Uniden America Corporation UT018 User Manual

• 15 GMRS / 7 FRS Channels
• 142 Privacy Codes (CTCSS Tone 

and DCS Code)

• Up to 15 Mile Range*
• Direct Call
• Scramble
• 143 Group Codes
• Silent Mode
• Internal VOX Circuitry
• 10 Selectable Call/Ring Tone Alerts
• Backlit LCD Display
• Optional Headset Accessories
• Headset Jack
• Roger Beep

1 Antenna
2 PTT (Push-To-Talk) Button
3 Monitor Button
4 Weather/Alert Key
5 D-call Key
6 Menu/group Key
7 Speaker
8 Volume Setting Nob
9 Up/Down Button

10 Headset Jack
11 Tone/Scan Key
12 Monitor Key

13 Microphone
14 DC IN 9V
15 Channel Indicator
16 Sub Code Indicator
17 Alert Indicator
18 Receive Indicator
19 Miss Call Indicator
20 Battery Level Indicator
21 SCRM Indicator
22 VOX Indicator
23 Charging Contacts

Congratulations on your purchase of the Uniden
GMR1588-2CK/GMR1595-2CK (General Mobile
Radio Service) radio. This lightweight, palm-sized,
radio is a state-of-the-art device, equipped with
many valuable features. Use it at sporting events,
to stay in contact with family and friends, hiking,
skiing, outdoors, or in a neighborhood watch for
vital communication.

Your package contains two GMR1588-2CK /
GMR1595-2CK radios, two rechargeable NiMH
battery packs (#BP38), two AC adapters (#AD-
1004), two charging cradles (#RC1581), two belt
clips and this reference guide. You can operate the
unit using the rechargeable NiMH battery pack or 
4 AAA alkaline batteries (not included).
To order the following optional accessories, visit our
web site @www.uniden.com or call 1-800-554-3988,
Mon-Fri, 8 a.m. to 5 p.m. CST.
Use only Uniden accessories.
•  NiMH Battery Pack - #BP38
•  Charging Cradle - #RC1581
•  VOX Headset - #HS910/HS915
•  AC Adapter - #AD-1004
•  DC Adapter - #DC-1002

Your GMR1588-2CK/GMR1595-2CK radio uses a
supplied NiMH battery pack or 4 AAA alkaline
batteries (not included).

To install the NiMH battery pack:

1) Make sure the radio is off.
2) Remove the battery compartment door by

pressing the tab at the bottom of the
compartment door, and remove the cover.

3) Put the NiMH battery pack in the battery

• Power Boost Button for 

Maximum Range

• All Call
• Auto Channel Change Call
• Battery Charger
• Battery Level Meter
• Channel Monitor
• Channel Scan
• Group Scan
• Keypad Lock
• NOAA Emergency /

Weather Channels

• Emergency Weather Alert
• DC IN 9V Jack

This radio has a battery level meter that indicates
the status of the batteries. When the battery level is
low, BATT appears and the battery level meter icon

flashes. Recharge the NiMH battery pack

immediately or, if you are using the alkaline
batteries, replace the alkaline batteries in order to
continue using the radio.

Warning! To avoid the risk of personal injury or
property damage from fire or electrical shock, only
use the Uniden accessories specifically designated
for this product.

If you use the rechargeable NiMH battery pack, two
GMR1588-2CK/GMR1595-2CK radios can be
charged directly or by using the supplied charging
cradle.

Charge Using the Radio
1) Connect the AC adapter to or optional DC

adapter to DC IN 9V jack of the radio and
connect it to the appropriate power source.

2) Charge the battery pack for 16 hours until the 

battery indicator stop flashing.

Using the Charging Cradle
1) Connect the AC adapter or optional DC adapter

to DC IN 9V jack of the radio and connect it to
the appropriate power source.

2) Set the charging cradle on the desk or tabletop,

and place the radio in the charging cradle with
the keypad facing forward.

3) Charge the battery pack for 16 hours until the

battery indicator stops flashing. Then remove the
radio from the charging cradle after completing
charging.

Note:
• Use only the supplied battery and AC adapter or

compartment. Be sure to follow the instructions
written on the battery pack’s label. Installing the
battery pack incorrectly will prevent the unit from
operating.

4) Replace the battery compartment door.

In order to get the most out of your new radio, read
this reference guide completely before attempting to
operate the unit.

Turning the Radio On and Adjusting the Volume
1) Rotate vol/off clockwise until it clicks.
2) To turn off the radio, rotate vol/off

counterclockwise until it clicks.

Adjusting the Sound (Key Beeps)
Your radio sounds a beep each time you press a
key (except for PTT and Power boost).
To turn this sound off, press and hold d-call while
turning on the radio. Repeat this step to turn the
sound on.

Choosing a Channel
Your radio has 22 channels and 142 Privacy codes
you can use to talk to others. In order to speak to
someone, both your radios must be set to the same
channel and Privacy code.

To choose a channel:

Press 

▲ or ▼ to increase or decrease the channel

number displayed.

Note: Channels 1-7 and 15-22 have a typical range
of up to 5 miles, or 15 miles when you press Power
Boost. Channels 8-14 have a typical range of up to
5 miles. You can see an indication of the range as
you change channels. HI appears when you select
channels 1-7 or 15-22, and LO appears for
channels 8-14.

Note: The range of channels 1-7 and 15-22 can be
boosted only when you use NiMH batteries. When
you press Power boost while using alkaline
batteries, the range is not boosted.

In order to use Direct Call and Auto Channel
Change, you need to initialize a couple of settings
in your radio:

• Set the radio to Group Mode

• Set a Group Number

• Set a Ring Tone

• Set a Unit Number

• Set a "Nickname"

Setting the Radio to Group Mode
To set the radio to Group Mode, which enables
Direct Call, Auto Channel Change and All Call,
press and hold menu/grp for 2 seconds. The radio
displays oF GRUP. Press 

▲ or ▼ to display on

GRUP, then press menu/grp to advance to Setting
the Group Number.

Note: In group mode, you cannot receive
transmissions from other radios unless they are
also set to the same channel and group number.

Setting the Group Number
Set the group number for your radio group from 
0-142. Everyone in your group must select the
same group number in order to communicate with
each other.

1) Press and hold menu/grp for 2 seconds. The

radio displays on GRUP.

2) Tap menu/grp. The radio displays Gnnn (n is a

number). Press 

▲ or ▼ to select the group

number.

3) Press PTT or Power boost to return to normal

operation, or continue to the next section.

Setting the Ring Tone
This setting selects the tone you hear when
someone places a direct call to you.

1) Press and hold menu/grp for 2 seconds, then

tap menu/grp two times until the radio displays
n RING.

2) Press 

▲ or ▼ to select the desired ring sound.

With each press, you hear a sample of the
selected tone.

3) Press PTT or Power boost to return to normal

operation, or continue to the next section.

Setting the Unit Number
Each radio in your group needs to be set to a
unique unit number, from 1-16.

1) Press and hold menu/grp for 2 seconds, then

tap menu/grp three times until the radio
displays n - - - - (or your current nickname).

2) Press 

▲ or ▼ to select the desired unit number.

3) Press PTT to return to normal operation, or

continue to the next section.

Setting Your  Nickname
Your nickname appears on other units’ displays
when you make a group call or direct call. This is
also the name that appears on other radio displays
when someone wants to make a direct call to you.
When no nickname is set, the unit number appears.

1) Press and hold menu/grp for 2 seconds, then

tap menu/grp four times until the radio displays
n - - - - (or your current nickname) with the first

place in the nickname flashing.

2) Press 

▲ or ▼ to select the letter, then tone to

advance to the next letter until you have entered
your nickname.

3) Press menu/grp to confirm the setting and exit

the group settings menu.

Using Group Mode
Group mode lets you make direct calls to other
people in your group without alerting the entire
group and also lets you quickly change everyone in
your group to another channel from a single radio.
Before using group mode, follow the instructions in
"Setting Up Group Mode" on every radio in your
group. Then, to record the unit ID and everyone’s
nickname in every radio, send a call to "All" from
each radio one time (see "Sending a Direct Call").

Sending a Direct Call
Direct Call lets you call everyone in your group at
once, or call a single person in your group without
anyone else in the group knowing. It is like a
"speed dial" directly to the person(s) you want to
talk to.

To call everyone in your group, press d-call in
group mode. The radio flashes ALL. Then, press 
d-call again. Everyone in your group receives a call
"chirp" for about 5 seconds. When the chirp ends,
begin your conversation.

Note: When you make a direct call to "all," your
radio also sends out your nickname or ID so that it
will show up in the call list for everyone in your
group.

To call one person in your group, without having
other people know, press d-call in group mode.
Then, use 

▲ or ▼ to select the person you want to

call and press d-call again. Your radio sounds
tones for 10 seconds as it sends the call. When the
tones end, you can begin your conversation. You
can silence the call tones at any time by pressing
PTT.

Your conversation remains private between you and
the person you called until 15 seconds after your
last transmission. Then, your radio automatically
exits private mode.

Automatically Changing Channels
Auto Channel Change lets you easily coordinate a
channel change for everyone in your group. You
might want to do this when you find you are getting
a lot of interference on your current channel. Or,
you can use this feature to change from a low-
power channel (8-14) to one of the high-powered
channels (1-7, 15-22) if you need more range (or to
a low-power channel if you need longer battery
life).

To start an auto channel change, on any radio in
the group tap tone. The current channel and CHCX

appears. Use 

▲ or ▼ to select the target channel.

You can check whether the selected channel is
busy. Then press d-call.
Your radio chirps for about 10 seconds while it
sends out the channel change signal. As each
radio receives the channel change signal, it chirps
once, then changes to the new channel.

To ensure all radios make it to the new channel, we
recommend you:

• Make sure you are in an open environment,

where the radio will get the best range.

• Optimize range during the channel change

command by raising the radio over your head to
give the best possible height.

• Do a "roll call" on the new channel after the

move to be sure no one was left behind. If you
missed someone, return to the previous channel
and issue the command again.

Use the radio in standard (not group) mode when
you need to be able to communicate with radios
that do not have the group feature.

Choosing a Privacy Code
You can select a Privacy Code from 1-142 for each
channel. oFF (OFF) indicates no Privacy code
selected and your radio can receive a signal
regardless of the code settings of the transmitting
radio.

1) Press tone/scn. The Privacy code indicator

flashes.

2) Press 

▲ or ▼ to increase or decrease the

code. You can also select oFF.

3) Press tone/scn again.

Note: Only tones 1-38 are standard across radio
brands. Other settings might differ from brand to
brand. See the specifications for the specific tones
used for each setting.

Channel Scan Feature
Your GMR1588-2CK/GMR1595-2CK radio has a
channel scan feature that lets you easily scan all
22 channels. When an active channel is detected,
the radio pauses on that channel until the channel
is clear. Then after a 2-second delay, the radio
resumes scanning. Pressing PTT while the scan is
paused on a channel lets you transmit on that
channel.

To turn on channel scan:

Press and hold tone/scn until SCAN appears. The
channel number changes as the radio rapidly
cycles through the channels.

To turn off channel scan:

Press d-call, PTT, Power boost, wx/alert or
menu/grp, or press and hold tone/scn for 2
seconds.

To talk to others using the radio:

1) Press and hold PTT and speak in a clear,

normal voice about 2-3 inches away from the
microphone. While you transmit, TXHI or TXLO
appears on the display according to the type of
channel. To avoid cutting off the first part of your
transmission, pause slightly after pressing PTT
before you start talking.

2) When you finish speaking, release PTT. You  can

now receive incoming calls. While receiving, rx
appears on the display.

Note: When you press Power boost, boost and rx
appear on the display. The radio transmits at
maximum power when a GMRS channel is
selected. If Power boost is continuously pressed, 
1 minute after you start pressing Power boost the
transmission stops and you hear a boost timeout
error tone.

Monitor Mode Feature
Your GMR1588-2CK/GMR1595-2CK radio lets you
listen for weak signals on the current channel at the
press of a key.

To turn on the Monitor Mode:
• For brief listening, press mon. MON appears

and rx icon flashes.

• Press and hold mon for 2 seconds until two

beeps sound for continuous listening. The
receiver circuit stays open, so you hear both the
noise and weak signals.

To turn off Monitor Mode:

Press mon to return to the previous mode. The
mon and rx icons disappear.

Navigating through the Normal Menu
To access the advanced features of the GMR1588-
2CK/GMR1595-2CK, your radio has a Menu
function.

1) To enter the menu, press menu/grp.
2) Additional presses of menu/grp advances you

through the menu. After the last menu item, the
radio exits to the previous mode.

3) Other ways to exit the Menu function are:

a. Press PTT, Power boost, mon, d-call,

wx/alert, or tone/scan.

b. Wait 10 seconds until the radio automatically

returns to previous mode.

Setting Scramble
Scramble allows you to make a private
conversation. No one listening to your conversation
can understand what you are talking about. Be sure
that the person you are calling also sets their radio
to the scramble feature.

To set Scramble:

1) Enter the menu. SCRM appears and the current

setting flashes.

2) Select on (ON) using 

▲ or ▼.

Note: You can only communicate using scramble
between two compatible Uniden radios.

Voice Operated Transmission
Your GMR1588-2CK/GMR1595-2CK radio has a
user selectable Voice Operated Transmitter (VOX)
that can be used for automatic voice transmissions.
The VOX feature is designed to be used with a
headset with a microphone. Transmission is starts
when you speak into the microphone instead of
pushing the PTT and Power boost button.

To select the VOX level:

1) Enter the menu. Advance through the menu until

VOX appears. The current level (OFF, 1-5)
flashes. Level oF (OFF) disables VOX, while
levels 1-5 set the sensitivity of the VOX circuit.

2) Press either 

▲ or ▼ to set the desired VOX

sensitivity level. Use level 1 for increased
sensitivity to voice in normally quiet
environments, and use a higher level to reduce
undesired activation in very noisy environments.

Transmitting a Call Tone
Your GMR1588-2CK/GMR1595-2CK radio is
equipped with 10 selectable call tones that are
transmitted when you press d-call in normal mode.

To select a call tone:

1) Enter the menu. Advance through the menu until

CALL appears. The current call tone number 
(1-10) flashes.

2) Press 

▲ or ▼ to increase or decrease the

number to the desired call tone. Each tone will
be heard through the speaker.

To transmit the selected call tone, press d-call. The
selected tone is transmitted for a fixed length of
time. Call Tone is cancelled if you press PTT or
Power boost.

Setting Silent Call 
When you turn on the silent mode, all incoming
calls are muted: the radio blinks the display

Key Lock

Scramble

VOX Level

Call Tone

Silent Mode

1-10

OFF, 1-5

ON-OFF

ON-OFF

ON-OFF

UT018ZH_GMR1588-2CK_ENG_1227  12/27/05  2:44 PM  Page 1