Motorola Gm300 Basic 68p64115b51 Manual
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Chapter 2 MODEL CHART AND TEST SPECIFICATION 1.0 Model Chart (UHF 403-470 MHz) GM Series UHF 403-470 MHz Model Description MDM25RHC9AN1_EGM340, 403-470 MHz, 1-25W, 6 Ch MDM25RHF9AN5_E GM360, 403-470 MHz, 1-25W, 255 Ch MDM25RHN9AN8_EGM380, 403-470 MHz, 1-25W, 255 Ch Item Description X GCN6112_ Control Head GM340 XGCN6120_Control Head GM360 X GCN6121_ Control Head GM380 XIMUE6015_Tanapa GM340 X IMUE6015_ Tanapa GM360 XIMUE6038_Tanapa GM380 XXXENBN4056_ Packaging,WarisMobile XXXGLN7324_Low Profile Mounting...
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2-2 MODEL CHART AND TEST SPECIFICATION 2.0 Model Chart (VHF 136-174 MHz) GM Series VHF 136-174 MHz Model Description MDM25KHC9AN1_EGM340, 136-174 MHz, 1-25W, 6 Ch MDM25KHF9AN5_E GM360, 136-174 MHz, 1-25W, 255 Ch MDM25KHN9AN8_EGM380, 136-174 MHz, 1-25W, 255 Ch Item Description X GCN6112_ Control Head GM340 XGCN6120_Control Head GM360 X GCN6121_ Control Head GM380 XIMUD6013_Tanapa GM340 X IMUD6013_ Tanapa GM360 XIMUD6024_Tanapa GM380 XXXENBN4056_ Packaging,WarisMobile XXXGLN7324_Low Profile Mounting...
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Model Chart (Low Band 29-50 MHz)2-3 3.0 Model Chart (Low Band 29-50 MHz) GM Series Low Band 29-50 MHz Model Description MDM25BKF9AN5_EGM360 LB1, 29.0-36.0 MHz, 40-60W, 255 Ch MDM25CKF9AN5_E GM360 LB2, 36.0-42.0 MHz, 40-60W, 255 Ch MDM25DKF9AN5_EGM360 LB3, 42.0-50.0 MHz, 40-60W, 255 Ch Item Description XXXGCN6120_ ControlHead,GM360 XIMUB6003_Tanapa GM360, LB1 X IMUB6004_ Tanapa GM360, LB2 XIMUB6005_Tanapa GM360, LB3 XXXENBN4056_ Packaging,WarisMobile XXXHKN9402_12V Power Cable XXXMDRMN4025_...
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2-4 MODEL CHART AND TEST SPECIFICATION 2.4 Specifications General Specification VHF UHF LB1, LB2, LB3 Frequency Range:136-174 MHz403-470 MHz29.7-36.0 MHz 36.0-42.0 MHz 42.0-50.0 MHz Frequency Stability (-30°Cto+60°C, 25°CRef.)±2.5 PPM ±2 PPM ±5.0 PPM Channel Capacity:GM340 - 6 GM360 - 255 GM380 - 255 Channel Spacing: 12.5/20/25 kHz Power Output:1-25W1-25W40-60W Power Supply: 13.2Vdc (10.8 - 15.6 Vdc) negative vehicle ground Dimensions (L X W X H) UHF/VHF 1-25W GM340 GM360 GM380 Low Band 40-60W GM360...
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Specifications2-5 Tr a n s m i t t e r Specification VHF UHF LB1, LB2, LB3 Modulation Limiting: ±2.5 kHz @ 12.5 kHz ±4.0 kHz @ 20 kHz ±5.0 kHz @ 20/25 kHz FM Hum and Noise:[email protected] -45dB@20/25kHz Conducted/Radiated Emissions:-36 dBm < 1 GHz -30 dBm > 1 GHz-26 dBm Adjacent Channel Power-60dB @12.5, -70dB @ 20/25kHz Audio Response: ( 300 to 3000Hz)+1, -3dB Audio Distortion: @ 1000 Hz, 60% Rated Maximum Deviation: 3% Typical Receiver Specification VHF UHF LB1, LB2, LB3 Sensitivity (12dBSINAD):...
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2-6 MODEL CHART AND TEST SPECIFICATION
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Chapter 3 MAINTENANCE 1.0 Introduction This chapter provides details about the following: Preventive maintenance (inspection and cleaning). Safe handling of CMOS and LDMOS devices. Disassembly and reassembly of the radio. Repair procedures and techniques. Installation of Option Boards. 2.0 Preventive Maintenance The radios do not require a scheduled preventive maintenance program; however, periodic visual inspection and cleaning is recommended. 2.1 Inspection Check that the external surfaces of the...
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3-2MAINTENANCE Cleaning Internal Circuit Boards and Components Isopropyl alcohol (70%) may be applied with a stiff, non-metallic, short-bristled brush to dislodge embedded or caked materials located in hard-to-reach areas. The brush stroke should direct the dislodged material out and away from the inside of the radio. Make sure that controls or tunable components are not soaked with alcohol. Do not use high-pressure air to hasten the drying process since this could cause the liquid to collect in unwanted...
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Repair Procedures and Techniques — General 3-3 4.0 Repair Procedures and Techniques — General Parts Replacement and Substitution When damaged parts are replaced, identical parts should be used. If the identical replacement par t is not locally available, check the parts list for the proper Motorola part number and order the part from the nearest Motorola Communications par ts center listed in the “Piece Parts” section of this manual. Rigid Circuit Boards This family of radios uses bonded, multi-layer,...
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3-4MAINTENANCE 6.0 Radio Disassembly - Detailed The procedure to remove and replace a Control Head, Top Cover or Transceiver Board is similar for all models of radio. A typical procedure is therefore shown followed by specific disassembly procedures for Control Heads on radio models without a display and radio models fitted with a display. 6.1 Control Head Removal 1. Inser t the dismantling tool in the groove between the control head and the radio assembly as showninFigure3-1. 2. Press on the dismantling...