MXT275 Owner’s Manual
Model MXT275
Table of Contents
WELCOME TO THE WORLD OF MIDLAND…………………………………....……3 FEATURES………………………………………………………………………………………..3 FCC NOTICE…………………………………….……………………………………………..…4 Exposure to Radio Frequency Energy………..……………………………………………......4 INSTALLING YOUR RADIO………………………………………………………………….….5
Preparation for Installation…........…………………………………………...5 Installing the Mounting Bracket…...………………………………………….6 Installing the Antenna……………….…………………………………………7 Electrical and Rear Panel Connections..……………………………………8 Connecting the Microphone…………….…………………………………….8 Using an External Speaker……………….…………………………………..9
CONTROLS AND INDICATORS………………………………………………………………..9 Microphone Operating Controls…………..………………………………….9 Front Panel Connections…………………………………………………….11 Back Panel Connections…………………...………………………………..11 LCD Display…………………………………...……………………….……..12
OPERATING YOUR RADIO…………………………………….……………………….…….13 About Range……………………………………….…………………….…...13
Power On/Off……………………………………..……………………….….14
Selecting the Active Channel…………………….………………………....14 Adjusting the Volume………………………………..……………………….14 To Transmit and Receive a Call…………………………………………….15
UTILITY FUNCTIONS………………………………………………….……………………….15 Locking the Keypad………………………………….………………………15 Using Monitor Mode………………………………….………………………16 Scanning for Active Channels………………………...…………………….17 NOAA Weather Radio/Scan……………………………..………………….17
To Manually Set the Weather Channel………………………………………………………..18 To Enable Weather Alert………………………………………………………………………..18 MENU MODE FUNCTIONS……………………………………………………………………19 Selecting a Privacy Code……………………………………………… ….19 Selecting the Transmit (TX) Power Level……………………………….…21 Adjusting Squelch Sensitivity…………………………………………...…..21 Roger Beep……………………………………………………………….…..22 Call Alert Tone………………………………………………………………...23 Silent Operation………………………………………………………….…...23 Repeater Channels…………………………………………………………..24 Selecting the LCD Display Background Color…………………………….24
CHOOSING YOUR OUTPUT SPEAKER………………………………………………….....25 RESTORING THE DEFAULT SETTINGS…………………………………………………….25 CARE AND MAINTENANCE…………………………………………………………………..26 TROUBLE SHOOTING GUIDE………………………………………………….…26 SPECIFICATIONS…………………………………………………………...….......................27
GMRS Frequency Chart………………………………………....................27 WX Weather Band Chart……………………………………......................27 GMRS Repeater Frequency Chart…………………………..................... 27 CTCSS Privacy Codes Frequency Chart……………………...................28
DCS Privacy Codes Frequency Chart.................................................... 29
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Model MXT275
ACCESSORIES…………..……………………………………………………………………..30 LIMITED WARRANTY…………………………………………………………………………..31
WELCOME TO THE WORLD OF MIDLAND RADIO
Congratulations on your purchase of a high quality MIDLAND product.Your MXT275 2-way radio represents state-of-the-art high tech engineering. Designed for General Mobile radio Service (GMRS) operation, this compact package is big on 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 MXT275 radio is designed for reliable and trouble-free performance for years to come.
FEATURES
––15 GMRS Channels
––10 NOAA Weather Channels ––8 Repeater Channels
––142 Privacy Codes (38 CTCSS / 104 DCS) ––Monitor Function
––Keypad Lock ––Power Hi/Lo Settings
––External Speaker Jack
IMPORTANT!
Changes or modifications to this unit not expressly approved by
MIDLAND RADIO CORPORATION could void your right to operate this unit. Your radio is set up to transmit a regulated signal on an assigned frequency. It is against the law to alter or adjust the settings inside the COMMUNICATOR to exceed those limitations. Any adjustment to your radio must be made by qualified technicians.
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Model MXT275
FCC NOTICE
The MXT275 operates on GMRS (General Mobile Radio Service) frequencies, which require a Federal Communications Commission (FCC) license. You must be licensed prior to operating on channels 1-7, 15-22 and repeater channels 15-22, which comprise the GMRS channels of the MXT275. Serious penalties may result from 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 that should be used for station identification when operating your 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 your
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:
http:// www.fcc.gov and request form 605.
This device complies with Part 15 of the FCC rules. Operation is subject to the condition that this device does not cause harmful interference
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 beings to radio frequency electromagnetic energy.
▪▪ United States Federal Communications Commission, Code of Federal Regula-
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tions: 47 CFR part 2 sub-part J |
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American National Standards Institute (ANSI)/Institute of Electrical & Electronics |
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Engineers (IEEE) C95. 1-1992 |
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Institute of Electrical and Electronics Engineers (IEEE) C95. 1-1999 Edition |
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National Council on Radiation Protection and Measurements (NCRP) of the United |
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States, Report 86, 1986 |
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International Commission on Non-lonizing Radiation Protection (ICNIRP) 1998 |
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To control your exposure and ensure compliance with the general population or |
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uncontrolled environment exposure limits, transmit no more than 50% of the time. |
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The radio generates measurable RF energy exposure only when transmitting. |
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The consumer must maintain a minimum safe separation distance of 33.54 inches |
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(86 cm) from the antenna when transmitting. |
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Model MXT275
INSTALLING YOUR RADIO Preparation for Installation
This radio may be installed in any 12-volt, negative ground, system
vehicle. Most current U.S. and Foreign vehicles use a negative ground system, but some older models and some newer large trucks may have a positive ground. Check the specifications for your vehicle before beginning installation. Generally, you have a negative-ground system if the negative (-) battery terminal is connected to the motor block. Contact your dealer if you are unable to determine your vehicle’s polarity system.
1.Read these instructions completely before beginning installation
2.Read and follow all safety precautions in your vehicle’s Service Manual.
3.Make sure all necessary tools, materials, and parts are on hand.
4.Disconnect the negative (-) battery cable before installing your radio. Be sure to reconnect the cable when installation is complete.
5.Determine a mounting location for your radio. The MXT275 is designed to be installed under the dash or vertically on the center console. Choose a location that does not impair visibility or interfere with driving. Also take into consideration the routing and length of the lead wires and cables to the power source, antenna, and/or optional external speaker.
CAUTION: Extreme care should be exercised when drilling into the dash to avoid damage to under dash electronic ignition, cruise control, instrument and/or accessory wiring.
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Model MXT275
Installing the Mounting Bracket
1.Using the mounting bracket as a template, mark the location of each screw hole under the dash. Use a nail or other sharp pointed object to mark the hole locations.
2.Attach the bracket to the dash with the Phillips head sheet metal screws provided. Tighten the screws securely. DO NOT OVER-TIGHTEN.
3.Slide the radio into the mounting bracket. BE SURE the mounting bracket retainers engage the slots in the sides of the radio to prevent movement while driving.
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Model MXT275
Installing the Antenna
The MXT275 includes a “magnetic mount” antenna, intended to be attached to the vehicle’s roof, trunk or similar location. Specific installation requirements vary between vehicles. Use the following guidelines to install the antenna.
*Where you locate your antenna does make a difference.*
Some general rules for antenna location that can aid radio performance.
1.Metal surfaces covered by fiberglass or vinyl may affect radio range.
Avoid these locations.
2.Mount the antenna as high on the vehicle as possible. The higher the better.
3.If possible, mount the antenna in the center of whatever surface you choose.
4.The antenna cable is 19.7 feet (6 meters) long. Be sure the mounting location will allow for connection of the cable to the radio.
5.Be sure the mounting location is clean and dry before installing the antenna.
6.Route the antenna cable through an accessible entry point, such as a rear door or trunk opening.
7.When routing the antenna cable inside the vehicle, keep the cable away from noise sources, such as the ignition system, gauges, etc.
8.Exercise care to prevent cable damage. Make use of existing gaskets, grommets and weather stripping to protect the cable along its route.
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Model MXT275
Electrical and Rear Panel Connections
Refer to Rear Panel Connections for rear panel connector locations.
NOTE: Radio antenna is installed separately.
1.The power cord supplied with the MXT275 is equipped with a cigarette lighter adapter for easy installation. Simply plug the connector into the vehicle’s cigarette lighter. If a “hard-wired” installation is desired, connect the power cord to the vehicle’s electrical system as follows:
▪▪ Cut the power cord just after the cigarette lighter adapter.
▪▪ Connect the positive lead (RED wire with in-line fuse holder) to either (a) the fuse block or (b) directly to the positive post of the vehicle’s battery.
NOTE: The fuse block is usually the most convenient connection point. The power cord positive lead can also be connected to the accessory terminal on the fuse block or ignition switch, so the radio automatically turns off when the ignition is turned off.
▪▪ Securely connect the ground lead (BLACK wire) directly to the vehicle’s metal frame. A good direct metal-to-metal ground is
essential for optimum performance.
2.Attach the antenna cable to the ANT jack on the rear panel.
3.If desired, an optional external speaker (purchased separately) can be connected to the EXT SPKR jack (see Using an External Speaker).
Connecting the Microphone
Insert the RJ45 connector into the front of the MXT275. The microphone mounting bracket can be attached to the vehicle dash or other convienent location in a manner similar to the radio’s mounting bracket..
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Model MXT275
Using an External Speaker
The MXT275 provides a rear-panel jack for connection of an optional external speaker (purchased separately).
When selecting an external speaker, ensure the speaker has 8-ohm impedance and is rated for 4.0 watts.
NOTE: When an external speaker is connected, the radio’s internal speaker is automatically disabled.
CONTROLS AND INDICATORS
1
2
3
4
5
6
MIC
7
8
9
10
11
Microphone Operating Controls
1.LCD Display
2.Speaker/Microphone Jack
3.MENU - Press to access the menu
4.CALL - Press to send a call signal
5.Volume Buttons - Press to adjust the volume of the radio.
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Model MXT275
6.
Lock - Press and hold to lock the keypad
7.Mic - Built in Microphone
8.WX - Press and release the WX button to enter the Weather Radio Mode
9.MON - Press and release the MON button to activate the Monitor Function
10.
Scan - Press and release the Scan Button to activate the Channel Scan Function
11.Transmit/Receive Indicator - Light is red when you are transmitting a signal, the light is green when receiving a signal
Microphone Operating Controls (cont)
4
1 2 3
1. Channel Down Button
2.Power Button
3.Channel Up Button
4.Push to Talk Button
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