Choosing a Channel
Your radio has 22 channels and 38 CTCSS codes
you can use to talk to others. In order to speak to
someone, each of you must set to the same
channel and CTCSS code.
To choose a channel:
With the radio in "Normal" mode press the
CH
key
and press the
or
key to increase or
decrease the channel number displayed.
Note:
FRS Channels 8-14 have an expectancy
range of up to approximately 4.8 km. GMRS
channels 1-7, 15-22 have an expectancy range of
up to approximately 16 km by pressing the
Power
boost
button
. You can know which GMRS or FRS
channel is active by the icon. The
icon
indicates GMRS channel, and the
icon indicates
FRS channel.
Choosing a CTCSS Code
Each of the channels 1-22 may have any one of
the codes, OFF or 1-38 selected. Code
oF
(OFF)
indicates no CTCSS code selected and your radio
can receive a signal regardless of the code settings
of the transmitting radio.
1) Enter the Menu. The CTCSS code on the LCD
display will appear.
2) Press the
or
key to increase or decrease
the code number displayed. You can also select
oF
(OFF) at this stage.
3) Exit the Menu.
Talking on Your Radio
To talk to others using the radio:
1) Press and hold the
PTT
button and speak in a
clear, normal voice about 2-3 inches away from
the microphone. While you are transmitting, the
icon will appear on the display. To avoid
cutting off the first part of your transmission,
pause slightly after pressing the
PTT
button
before you start talking.
GMR225
14
26
1
2
3
4
5
6
7
8
9
10
11
12
13
15
16
17
18
19
27
20
21
22
23
24
25
* Range may vary depending on environmental and/or topographical conditions.
• Power Boost Button for
Maximum Range
• 15 GMRS / 7 FRS Channels
• Up to 16 km Range*
• 5 Selectable Call Tone Alerts
• Backlit LCD Display
• Roger Beep
• Key Beep on/off
• 38 CTCSS Code
• Headsets included
• Headset Jack
1 Antenna
2
PTT
(Push-To-Talk) Button
3 Power boost Button
4
MON
(Monitor) Key
5
CALL
Key
6
SCN
(SCAN) Key
7 Speaker
8
CH
(Channel) Key
9 Headset Jack (Headsets
included)
10
(Volume Up) Key
11
SEL
/
(Select/Power) Key
12
Down Key
13 Microphone
14 Battery Level Meter
15 Receive Indicator
16 Power Boost Indicator
17 Call Indicator
18 Scan Indicator
19 Channel Indicator
20 CTCSS Indicator
21 Transmit Indicator
22 Volume Setting Indicator
23 VOX Indicator
24 Keypad Lock Indicator
25 GMRS/FRS Indicator
26 Charging Contacts
27 Charging LED
Congratulations on your purchase of the Sylvania
GMR225 (General Mobile Radio Service) radios.
These products are lightweight, palm-sized radios.
Use them at sporting events to stay in contact with
family and friends, hiking, skiing, outdoors, or in a
neighborhood watch for vital communication. These
compact, state-of-the-art devices are equipped with
many features.
PACKAGE CONTENTS
Your package contains 2 x radios, this reference
guide, 2 x belt clips, 2 x rechargeable Ni-MH battery
packs, 2 x AC adapter, 2 x recharging cradles and 2
x headsets.
INSTALL THE BATTERIES
Your GMR225 radio uses the Ni-MH battery pack or
4 AAA alkaline batteries (not included). If alkaline
batteries are used, we recommend using high
quality alkaline batteries.
To install the Ni-MH battery pack:
1) Make sure your radio is OFF.
2) Remove the battery compartment door by
pressing up the tab at the bottom of the
compartment door allowing the door to be
removed.
3) Install the Ni-MH battery pack into the battery
compartment. Be certain to follow the instruction
written on the label on the battery pack.
Installing the battery pack incorrectly will prevent
the unit from operating.
4) Replace the battery compartment door.
USING THE RADIO
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) Press and hold the
SEL/
key to turn the unit
ON, and increase the speaker volume by
pressing the
key. To decrease the volume,
press the
key.
2) Press and hold the
SEL/
key again to turn the
unit OFF.
Adjusting the Sound (Key Beeps)
Your radio emits a beep each time one of the buttons
or keys (except for the
PTT
key.
Power boost
button,
and the
CALL
key) are pressed. To turn this sound
OFF, press and hold
CALL
key while turning ON the
radio. Repeat this step to turn the sound ON.
Navigating through the Menu
To access the advanced features of the GMR225,
your radio has a Menu function.
• Battery Level Meter
• Channel Monitor
• Channel Scan
• Keypad Lock
• Belt Clip
• Ni-MH Battery Pack and
Charger
BATTERY LEVEL AND
LOW BATTERY ALERT
This unit has a battery level meter on the display to
indicate the status of the batteries. When the
batteries in the unit are very low, the battery level
meter icon
will flash. Replace the alkaline
batteries immediately or if you are using the Ni-MH
battery pack, you must recharge the battery 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 Sylvania accessories specifically
designated for this product.
1) To enter the Menu, press the
SEL/
key.
2) Additional presses of the
SEL/
key will
advance you through the Menu until exiting to
"Normal" operating mode.
3) Other methods of exiting the Menu function are:
a. Press and hold the
SEL/
key again.
b. Press buttons or keys (except the
and
keys).
c. Wait 10 seconds until the unit automatically
returns to “Normal” mode.
2) When you have finished speaking, release the
PTT
button. You can now receive incoming calls.
While receiving, the
icon will appear on the
display.
Note:
When you press the
Power boost
button
,
boost
and
icon appear on the display. The
radio will transmit Maximum power when a GMRS
channel is selected. After one minute past when
the boost transmission is established, the
transmission stops automatically, and you will hear
a boost time out error tone.
Voice Operated Transmission
Your GMR225 radio is equipped with 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 initiated by
speaking into the remote microphone instead of
pushing the
PTT
button.
To select the VOX level:
1) Enter the
Menu
. Advance through the Menu until
the vox icon appears on the display. The current
level (OFF, 1-3) will be indicated. Level
oF
(OFF)
disables VOX, while levels (1-3) set the
sensitivity of the VOX circuit.
2) Press either the
or
key to 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.
3) Exit the Menu.
Transmitting a Call Tone
Your GMR225 radio is equipped with 5 selectable
call tones that will be transmitted when the
CALL
key is pressed.
To select a call tone:
1) Enter the Menu. Advance through the Menu until
the
call
icon is shown on the display. The current
call tone number (1-5) will be indicated.
2) Press the
or
key to increase or decrease
the number to the desired call tone. Each tone
will be heard through the speaker.
3) Exit the Menu.
To transmit the selected call tone, press the
CALL
key. The selected tone will automatically be
transmitted for a fixed length of time.
Keypad Lock
To Lock the keypad:
Normal
Normal
CTCSS
VOX Level
Call Tone
Key Lock
1-5
OFF, 1-38
OFF, 1-3
OFF-ON
GMR225 RADIO
USING THE CHARGING CRADLE
If you use the rechargeable Ni-MH battery pack, two
GMR225 radios can be charged by using the
charging cradles.
Make sure to turn the radio OFF before placing
the radio in the charging cradle, otherwise the
battery level meter icon won’t indicate properly.
1) Connect the AC adapter to DC IN 9V jack and to
a standard 120V AC wall outlet.
2) Set the charging cradle on the desk or tabletop,
and place the radio in the charging cradles with
the keypad facing forward.
3) Make sure that the LED illuminates. Charge the
battery pack for 16 hours and remove the radio
from the charging cradle after charge.
Note:
The charge indicator LED will remain on as
long as the radios are left in the charger.
1) Enter the Menu. Advance through the Menu until
the
icon appears on the display. The current
key Lock status
oF
(OFF) blinks on the display.
2) To switch the key Lock mode from OFF to ON,
press the
key.
3) To confirm the setting, press the
SEL/
key.
The radio returns to the "Normal" mode.
Note:
If you exit the setting mode by pressing
other than the
SEL/
key, the key Lock setting will
be set to OFF
.
To Unlock the keypad:
1) Press and hold the
SEL/
key to turn the unit
OFF.
2) Press and hold the
SEL/
key again to turn
the unit ON. The keypad is unlocked.
Channel Scan Feature
Your GMR225 radio has a channel Scan feature
that allows you to easily Scan all 22
channels. When an active channel is detected, the
unit will pause on that channel until the channel is
clear. Then after a 2 second delay, the unit will
continue scanning. Pressing the
PTT
or
Power
boost
button while the Scan is paused on a
channel will allow you to transmit on that channel.
To turn ON channel scanning:
Press the
SCN
key until the
scan...
icon is
displayed. The channel number on the display will
change as the radio rapidly cycles through the
channels.
To turn OFF channel scanning:
Press the
SEL/
key,
CALL
key,
SCN
key,
PTT
button or
Power boost
button.
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