Midland GXT300 Series User manual

GXT300/325/310/400/450
Series GMRS/FRS Radio
X-TRA TALK
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OWNER'S MANUAL
www.midlandradio.com

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Model GXT300/325/310/400/450 Series
Page 2 www.midlandradio.com
TABLE OF CONTENTS 2
Introduction 3
Important Notice, FCC Licensing 4
LCD Display 5
Controls 5
Battery Installation 6
Installing the Belt Clip 6
Charging the Optional Battery Pack 7
Low Battery Level Indicator 7
Operating Your Radio 8 - 13
External Speaker/Microphone Jack 14
Troubleshooting Guide 15
Use and Care 15
Specifications and Frequency Charts 16
Warranty Information 17
MIDLAND Family Products 18
Accessories 18
Accessories Order Form 19

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Welcome to the world of Midland electronics
Congratulations on your purchase of a high quality MIDLAND product.
Your 2-way radio represents the state-of-the-art in high-tech
engineering. Designed for GMRS (General Mobile Radio Service)
operation, this compact package is big in performance. It is a quality
piece of electronic equipment, skillfully constructed with the finest
components. The circuitry is all solid-state and mounted on a rugged
printed circuit board. Your two-way radio is designed for reliable and
trouble-free performance for years to come.
Features
- 22 GMRS/FRS Channel
- 38 Privacy Codes
- eVOX
- Selectable CALL Tone
- Weather (WX) Band Receiver (GXT310/400/450 Series only)
- VIBRATE ALERT (GXT400/450 Series only)
- SCAN Function
- MONITOR Function
- Roger Beep Tone
- Silent Operation
- Key Pad Lock
- Power High / Power Low Settings
- Speaker / Microphone Jacks
- Battery Low Indicator
This device complies with Part 15 of the FCC Rules. Operation is subject to
the following two conditions : (1) this device does not cause harmful
interference, and (2) this radio must accept any interference that may cause
undesired operation.
To maintain compliance with FCC’s RF exposure guidelines, for body-worn
operation, this radio has been tested and meets the FCC RF exposure
guidelines when used with Midland Radio Corp. accessories supplied or
designated for this product. Use of other accessories may not ensure
compliance with FCC RF exposure guidelines. (Tested with Headset Model:
AVP-1)
Model GXT300/325/310/400/450 Series

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IMPORTANT NOTICE, FCC LICENSE REQUIRED FOR GMRS OPERATION
The GXT300/325/310/400/450 Series operates on GMRS (General Mobile
Radio Service) frequencies which require an FCC (Federal Communications
Commission) license. You must be licensed prior to operating on channels 1 - 7
or 15 - 22, which comprise the GMRS channels of the GXT300/325/310/400/450
Series. Serious penalties could result for unlicensed use of GMRS channels, in
violation of FCC rules, as stipulated in the Communications Act's Sections 501
and 502 (amended).
You will be issued a call sign by the FCC which should be used for station
identification when operating the radio on GMRS channels. You should also
cooperate by engaging in permissible transmissions only, avoiding channel
interference with other GMRS users, and being prudent with the length of their
transmission time.
To obtain a license or ask questions about the license application, contact the
FCC at 1-888-CALL FCC or go to the FCC's website:
www.fcc.gov/services/personal/generalmobile/licensing.html
Exposure To Radio Frequency Energy
Your Midland radio is designed to comply with the following national and
international standards and guidelines regarding exposure of human being to
radio frequency electromagnetic energy:
- United States Federal Communications Commission, Code of Federal
Regulations: 47 CFR part 2 sub-part J
- American National Standards Institute (ANSI)/Institute of Electrical &
Electronic Engineers (IEEE) C95. 1-1992
- Institute of Electrical and Electronic Engineer (IEEE) C95. 1-1999 Edition
- National Council on Radiation Protection and Measurements (NCRP) of the
United States, Report 86, 1986
- International Commission on Non-lonizing Radiation Protection (ICNIRP)
1998
To control your exposure and ensure compliance with the general population
or uncontrolled environment exposure limits, transmit no more than 50% of the
time. The radio generates measurable RF energy exposure only when
transmitting.
Model GXT300/325/310/400/450 Series

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CONTROLS
LCD DISPLAY 1. LOW BATTERY ICON – Indicates the
battery level is low.
2. TRANSMIT (TX) ICON – Indicates
radio is transmitting a signal.
3. eVOX – Indicates when eVOX mode is
active.
4. CHANNEL NUMBER – Changes from
1~22 on GMRS/FRS band (1~10 on
WX band GXT310/400/450 Series
only).
5. RECEIVE (RX) ICON – Indicates radio
is receiving a transmission.
6. KEY LOCK ICON – Indicates KEY
LOCK mode is on.
7. WX BAND ICON – Indicates when the
radio is in Weather Band mode
(GXT310/400/450 Series only).
8. VIBRATE-ALERT ICON – Indicates
when the Vibrate-Alert feature is on
(GXT400/450 Series only).
9. PRIVACY CODE – Indicates Privacy
Code selected by user (oF~38) .
10. TRANSMIT POWER LEVEL ICON –
Indicates TX Power setting (H/M/L for
GXT310/400/450 Series and H/L for
GXT300/325 Series).
11. POWER/VOLUME KNOB – Turn clock-
wise to turn the power on and increase
the volume level. Turn counter-clockwise
to decrease the volume level and turn
the power off.
12. PTT Button – Press and hold to transmit
voice communication.
13. CALL/LOCK Button – Press to send a
CALL tone signal. Press and hold to turn
KEY LOCK on/off.
14. MIC – Built-in microphone.
15. SPEAKER – Built-in speaker.
16. ANTENNA.
17. EXTERNAL SPEAKER/MIC JACK.
18. MENU Button – Press to access Menu
mode. Press and hold to go to WX Band
Receiver mode (GXT310/400/450 Series
only).
19. MONITOR/SCAN Button – Press to
enter SCAN mode. Press and hold to
enter MONITOR mode
20. UP and DOWN Button – Make
adjustments in MENU mode.
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Model GXT300/325/310/400/450 Series

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BATTERY INSTALLATION
Your GXT300/325/310/400/450 Series radio operates with either 4 AA
alkaline batteries or an optional NiMH battery pack. The belt clip
should be removed (see below) to ease installation or removal of the
batteries.
To install the batteries:
1. With the back of the radio facing you, remove the belt clip (see
diagram below) for easy access, then remove the Battery Cover
by pressing down on the top center and sliding it down from the
radio.
2. Insert 4 AA batteries observing the polarity as shown. Installing
the batteries incorrectly will prevent the unit from operating or
may damage the unit.
3. Return the Battery Cover by sliding it up on the radio. Replace the
belt clip, making sure it locks into place.
BATTERY
COMPARTMENT
BATTERY
COMPARTMENT
COVER
One Battery inserted
in this slot
Press here and
push down to open
Model GXT300/325/310/400/450 Series
INSTALLING THE BELT CLIP
To install the BELT CLIP, slide the clip down into the slot on the back
of the radio until the BELT CLIP LATCH clicks. To remove the BELT
CLIP, press the LOCK TAB down , then gently pull the belt clip up
toward the top of the radio.
BELT CLIP
LOCK TAB
BELT CLIP
LATCH

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CHARGING THE OPTIONAL BATTERY PACK
Your GXT300/325/310/400/450 Series is equipped for using an
optional rechargeable NiMH battery pack (not included) which can be
recharged using a desktop charger (not included). Initial charge time
is 24 hours with a charge time of 12 hours thereafter. For maximum
battery life, we recommend charging the battery pack when the low
battery icon comes on. Remove the radios from the charger when the
charge time expires.
To charge using a Desktop Charger:
1. Place the rechargeable battery packs in the radios.
2. Connect the AC adapter into an AC wall outlet.
3. Insert the AC adapter plug (or DC Cigarette Lighter adapter if
charging in vehicle) into the desktop charger jack.
4. Place the units into the desktop charger slot and note that the LED
indicator with RED color will light up, indicating charging function.
In order to ensure that the battery pack is fully charged, it is
recommended that the battery pack be charged for at least 12
hours.
1. Only use our NiMH battery pack.
2. Do not attempt to charge alkaline batteries or any batteries
or battery packs other than the one indicated in the manual.
This may cause leakage and damage to the radio.
3. For long term storage of the radio, turn the radio OFF and
remove the batteries from the radio.
LOW BATTERY LEVEL INDICATOR
Your GXT300/325/310/400/450 Series has a LOW BATTERY
ICON which will only appear on the LCD display if the battery voltage
level is low. At this point, the battery needs to be charged for at least
12hrs.
Model GXT300/325/310/400/450 Series
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POWER ON/OFF AND VOLUME
Rotate the POWER/VOLUME knob clockwise to turn the radio on and
increase the volume level. Rotate the control counter-clockwise to
reduce the volume level and to turn the radio off. During Power On,
the radio will beep 3 times with different tones, the LCD will display a
“self-test” message for 1 second and the LCD display will indicate the
last channel selected.
TRANSMITTING AND RECEIVING A CALL
To communicate, all radios in your group must be set to the same
channel and Privacy Code.
1. For maximum clarity, hold the radio 2 to 3 inches from your mouth.
2. Press and hold the PTT button and speak in a normal voice
into the microphone. The TX icon will appear continuously
on the LCD Display while transmitting.
3. To receive a call, release the PTT button. The RX icon will
appear on the display when your radio is receiving a transmission.
ABOUT RANGE
Your GXT Series radios are designed to give you maximum range
under optimum conditions.
Optimum Conditions are:
lOver water
lOpen rural areas without obstructions
lFlat areas where you can see the other person
To ensure you get maximum range:
lBe sure to use fresh or fully charged batteries - low batteries will
cause low power conditions
lBe sure you are on a GMRS channel - FRS channels are
restricted by the FCC to low power
lBe sure to set your radio to use Hi power.
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OPERATING YOUR RADIO
Model GXT300/325/310/400/450 Series

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Page 9 www.midlandradio.com
GXT300/325 SERIES QUICK REFERENCE CHART
GXT310/400/450 SERIES QUICK REFERENCE CHART
MONITOR
Pressing and holding the MONITOR button for 1 second will let you
hear noise so you can adjust the volume level of the radio when not
receiving a signal. This should be used to check activity on your
current channel before transmitting.
Press and hold the MONITOR button for 1 second again to get out
of MONITOR mode.
SCAN
Your GXT300/325/310/400/450 Series can scan all 22 channels for
activity. To enter, quickly press the SCAN button. Repeat the same
procedure to exit. Your radio will rapidly scan each of the 22 channels
and stop on any active channel for 5 seconds before resuming scan.
When you press the PTT button to transmit on an active channel, the
scanning function will stop and remain on the active channel. To
resume scanning, quickly press the SCAN button.
Model GXT300/325/310/400/450 Series
MENU Channel eVOX
1~22 oF/1/2
Privacy
oF~38
Roger Beep
On/Off
Power
H/M/L
Call Tone
1~5
Vibrate
On/Off
WX Channel
1~10
Press &
hold Menu
button
Silent Operation
On/Off
GXT400/450
Series only
MENU Channel eVOX
1~22 oF/1/2
Privacy
oF~38
Roger Beep
On/Off
Power
H/L
Call Tone
1~3
Silent Operation
On/Off

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CALL TONE
Your GXT300/325/310/400/450 Series can transmit a call tone for a
fixed length of time. To send a call tone, press the CALL button. The
TX icon will appear while transmitting a call tone and a tone can be
heard on the speaker for confirmation.
KEYPAD LOCK
To avoid accidentally changing the radio setting, press the LOCK
button for 4 seconds. The KEY LOCK icon will appear on the display.
PTT and CALL will still be active. Repeat the same procedure to
unlock the keypad.
DISPLAY ILLUMINATION
During Power on, the display illumination will activate for approx. 7
seconds. The display illumination can also be activated when the
MENU button is pressed.
CHANNEL SELECTION (GMRS/FRS BAND)
Press the MENU button once, and then the buttons to select one
of the 22 GMRS/FRS channels. To confirm the selection, press the
PTT button or press the MENU button again to move to the next
feature setting.
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Model GXT300/325/310/400/450 Series