1. Manuals
  2. Brands
  3. Motorola Manuals
  4. Radio
  5. GM1200E
  6. Installation manual

Motorola GM1200E Installation Manual

Hide thumbs Also See for GM1200E:
Table of Contents

Advertisement

Quick Links

Download this manual
GM1200E
Mobile Radio
Installation Manual
68P64112B07
European Publications Department (RPG) Fleet, Hampshire, England
Issue: May 1998

Advertisement

Table of Contents
loading

Related Manuals for Motorola GM1200E

Summary of Contents for Motorola GM1200E

  • Page 1 GM1200E Mobile Radio Installation Manual 68P64112B07 European Publications Department (RPG) Fleet, Hampshire, England Issue: May 1998...
  • Page 3 Table of Contents Installation Manual Table of Contents Chapter Radio Installation This chapter gives details on planning/procedures for installing the radio. Descriptions on the accessory connector and the internal connections for the databox radio are also provided. Reducing Noise Interference in Mobile Two-Way Radio Installations Describes ways of reducing noise interference when installing the radios.
  • Page 4 Table of Contents Installation Manual...

  • Page 5: Table Of Contents

    Radio Mounting in an Automotive Dashboard ..........9 External Speaker Installation ..............10 Remote Mount Controlhead Installation ............ 10 Accessory Connector Pin Functions ............. 12 GM1200E Databox Radio Connections............. 14 Radio Power Up/Down ................15 Connection Plan for Accessories ............16 Radio Installation...
  • Page 6 Table of Contents 1-ii Radio Installation...

  • Page 7: Safety Information

    Safety Information Safety Information Every radio, when transmitting, radiates energy into the atmosphere which may, under certain conditions, cause the generation of a spark. All users of vehicles fitted with radios should be aware of the following warnings: WARNING: DO NOT operate the radio near flammable liquids or in the vicinity of explosive devices.

  • Page 8: Operational Safety Warnings

    Avoid physical abuse; do not pound, drop, or throw the radio. It may damage exposed parts such as controls and connectors. Do not connect any equipment other than Motorola compatible equipment, as it may damage the radio. For a list of available compatible accessories consult the Accessories Guide or check with your local representative.

  • Page 9: Introduction

    Introduction Introduction Your mobile two-way radio offers various methods of installation possibilities. The standard radio package contains a direct mounting trunnion and power cables. Some models of the mobile radios may also be mounted in the car radio cut-out. This requires a mounting kit GLN7320 per ISO7736. In both cases it should be assured that the cables can be routed to the radio cabinet without being exposed to excessive heat or mechanical damage.

  • Page 10: Installation Planning And Procedures

    Installation Planning and Procedures Installation Planning and Procedures Installation Planning - Mobile Radios Planning is the key to fast, easy radio installation. Before a hole is drilled or a wire is run, inspect the vehicle and determine how and where you intend to mount the antenna, radio, and accessories. Plan wire and cable runs to provide maximum protection from pinching, crushing and overheating.

  • Page 11: Radio Mounting

    Radio Mounting Radio Mounting Mounting Trunnion The standard mounting trunnion allows the radio to be mounted to a variety of surfaces. Ensure the mounting surface is able to adequately support the weight of the radio. Allow sufficient space around the radio for free air flow for cooling. Ensure that the unit is close enough to the vehicle operator to permit easy access to operating controls.

  • Page 12: Mounting Trunnion Installation

    Radio Mounting Locate the nearest available vehicle chassis ground mounting point and shorten the black lead to remove excess cable length. Install ring lugs (supplied) onto stripped end of power cable black lead, and onto stripped end of red lead on fuse holder (see Figure 1-2). Locate the fuse holder as close to the battery as possible and away from any hot engine component.
  • Page 13 Radio Mounting Mount the antenna using the instructions provided with the antenna kit. Run the coaxial cable to the radio mounting location. If necessary, cut off the excess cable and install the cable connector. Thumb Screw Thumb Screw Trunnion Figure 1-3 Radio into Trunnion . Connect the antenna cable connector to the radio antenna connector on the rear of the radio (see Figure 1-4).
  • Page 14 Radio Mounting Figure 1-5 Transmission Hump Mounting (top) and Below Dash Mounting (bottom) Radio Installation...

  • Page 15: Radio Mounting In An Automotive Dashboard

    Radio Mounting Radio Mounting in an Automotive Dashboard Figure 1-6 Mounting the complete radio in the dashboard. To install the radio in an automotive dashboard: Open the radio cutout in the dashboard and, if necessary, enlarge it to the dimension shown in Figure 1-6.

  • Page 16: External Speaker Installation

    Radio Mounting External Speaker Installation Remove the speaker from the trunnion bracket by loosening the two wing screws. Choose a place to mount the speaker. Using the trunnion bracket as a template, mark the locations of the three mounting holes. Centrepunch and drill a 4 mm Ø...
  • Page 17 Radio Mounting To fit the remote back housing: Connect the flex to the control head back housing PCB (i.e. original PCB inside control head). Press the control head onto the remote back housing until it snaps into place. Remote Remote Front Housing mount radio Front housing PCB...

  • Page 18: Accessory Connector Pin Functions

    This section gives a description of the accessory connector pin functions. CAUTION: 1. The accessory connections shown are not compatible to some other models of Motorola radios. Check the appropriate accessory or technical manual for further information. 2. The output of pin 13 may be configured by a solder link within the radio. Switched B+ is the default.
  • Page 19 Accessory Connector Pin Functions Function Description Flat_RX_Audio The signal routed to this pin is controlled by ASFIC and gives continuous discrim- (NPD Data In) inator audio. For discriminator audio, the nominal ouput level is 330mVRMS for 60% deviation. The impedance is 600ohms. Programmable This digital output function depends on dealer programming.

  • Page 20: Gm1200E Databox Radio Connections

    Power to the radio is via the supply line and the radio is normally switched on/off using the On/Off button, however for a data radio this is not feasible. The following outlines the GM1200E Databox power up/down logic, and provides recommendations for installation.
  • Page 21 Accessory Connector Pin Functions If the accessory connector IGNITION SENSE line (pin 10) is activated when power is applied to the supply line, or after power is applied to the supply line, then the radio will power up and remain powered up until either the supply is removed or the IGNITION SENSE line is de-activated.

  • Page 22: Connection Plan For Accessories

    Connection Plan for Accessories CAUTION: The accessory connections shown are not compatible to some other models of Motorola radios. Check the appropriate accessory or technical manual for further information. Refer to the Basic Service Manual (chapter 3) for accessory service information.
  • Page 23 Table of Contents Chapter 2 Reducing Noise Interference in Mobile Two-Way Radio Installations Table of Contents Paragraph Page Introduction ....................1 Noise Sources .................... 1 Radiated Noise .................... 1 Conducted Noise ..................2 Induced Noise....................2 Operation of a Conventional Ignition System ......... 3 Detection of Noise Sources ..............
  • Page 24 Table of Contents 2-ii Reducing Noise Interference in Mobile Two-Way Radio Installations...

  • Page 25: Introduction

    Introduction Introduction Electrical noise generated by the electrical system of a vehicle, as well as local ambient noise, can interfere with normal operation of mobile radios. Satisfactory operation of a mobile radio in a given vehicle may require slight or heavy noise reduction, depending both upon the relative signal strength of the desired radio signal and upon the ability of the radio to reject the undesired noise.

  • Page 26: Conducted Noise

    Noise Sources It is impractical to prevent all arcing in the standard vehicle electrical system. In an 8-cylinder engine running at 2,000 RPM, arcing occurs across the spark plugs at a rate of 8,000 sparks per minute or 133 sparks per second. Electrical motors and generators also produce arcs. Windshield Inadequate Terminal Heater Air Conditioner Blower...

  • Page 27: Operation Of A Conventional Ignition System

    Operation of a Conventional Ignition System Operation of a Conventional Ignition System To effectively reduce ignition interference in a vehicle, it is well to understand the operation of an automobile ignition system. Ignition is necessary in a gasoline engine to ignite the gasoline vapour and the air mixture in its cylinders.

  • Page 28: Detection Of Noise Sources

    Points (note 2) Notes: 1. Noise reduction can only be achieved if components are properly grounded. 2. Items not supplied in kit. See auto parts dealer. Reference Quantity Motorola Description Number Part Number 1V839913 Lead & Lug Assembly 8C82571B02 Capacitor, Coaxial (0.1µF, 100V)
  • Page 29 2. Items not supplied in kit. See auto parts dealer. Voltage Regulator Generator Armature Field Battery Common Ground Generator Field Reference Quantity Motorola Description Number Part Number 1V839913 Lead & Lug Assembly 1V80700A88 Lead & Lug Assembly 8C82571B02 Capacitor, Coaxial (0.1µF, 100V) 8C82571B01 Capacitor, Coaxial (0.5µF, 100V)
  • Page 30 Detection of Noise Sources Check the installed radio for conducted and inducted noise by using an unmodulated signal generator to supply a clean RF signal through a coaxial cable directly to the antenna connector on the radio set. This should prevent radiated noise from entering the receiver and masking conducted and induced noise.

  • Page 31: Noise Reduction Techniques

    5.2.2 Available Noise Reduction Kits Motorola offers two noise reduction kits; Model TLN8845A for alternator-equipped vehicles and Model TLN6252A for generator-equipped vehicles. These kits are for suppression of noise in the primary and secondary of the ignition coil and for bleeding of static charges on the hood. The TLN6252A also is used to suppress noise from the generator and voltage regulator.

  • Page 32: Battery Connections

    This type of interference is characterised by a popping sound which is most noticeable when the engine is running slowly. To suppress the noise, connect a 0.1 µF coaxial capacitor (Motorola Part No. 8C82571B02) from the battery side of the ignition coil to vehicle ground (see Figure 2-5). This keeps the distributor noise from being conducted through the battery lead into the electrical system of the vehicle.

  • Page 33: Alternator/Generator Whine

    This type of interference is characterised by a high-pitched whine which varies with engine speed. A 0.5 µF coaxial capacitor (Motorola Part No. 8C82571B01) can be used to bypass the whine. For generators, the capacitors is connected in the armature lead. Never use a capacitor in the field lead.

  • Page 34: Voltage Regulator Noise

    This type of noise is suppressed using a Motorola Hood Wipers and Mounting Hardware Kit (part of TLN8845A or TLN6252A Noise Reduction Kits) which provides electrical bonding of the hood or trunk to the vehicle body while permitting them to be opened.

  • Page 35: Other Electrical Noises

    Wheel Static Road friction can cause static build-up on the front wheels. Suppress noise from this source using wheel static collector rings (Motorola Part No. 1K534254 regular type - 1K653173 small type). Ground Bonding Static charges can build up on various parts of a vehicle if not properly bonded and cause noise through arcing.

  • Page 36: Extender Radios

    This “ringing” effectively extends the duration of the noise impulse as it passes through the receiver. Motorola radios with the “Extender” feature have additional circuitry which “blanks” the receiver for the duration of the undesired noise pulse so that annoying “pops” are not heard.

Table of Contents