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Motorola Gm328 Gm338 Gm398 Detailed 6804112j18 E Manual

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    							UHF 1-25W PCB / Schematics / Parts List4-19
    9180469V03
    3VDC3.9VDC 12.5kHz  0VDC
    20/25kHz  5VDC 9180469V069180469V04
    0.75VDC
    0.75VDC3VDC9180468v04
    9180468V06 U3111-1
    CNTL
    131
    2VDD
    14VSS7
    R3116
    330MC74HC4066
    82pF C3112
    Q3152
    R3135
    1.2KBWSELECT_UHF_IF_1
    R3132
    DISCAUDIO_UHF_IF_1 15K
    680 R314610K R3151
    0.1uF C3139 C3132
    0.1uF R3117
    27K
    IFQ3102
    10 R3112
    1.8K R3142R3154
    10K
    C3110
    27pF
    C3140
    0.1uF 620nHL3111VDD
    7VSS
    620 R3108
    U3115-2
    MC74HC4066
    5CNTL4 314
    0.1uF C3144 FL3111
    CFWC455G
    3GND1
    GND2
    4
    1
    IN2
    OUT
    C3141
    0.1uF
    R3133
    8.2K
    1
    GND1
    GND2 2
    GND3 4
    5
    GND4
    3
    IN6
    OUT FL3101
    12R16
    R3148
    0
    120pFC3143 R3115
    390
    R3118
    6.8K
    R3111
    12K 5V_UHF_IF_1Q3151 1
    IN2
    OUT
    R3102
    10NU
    FL3113
    CFUCJ455F
    3GND
    27K R3106
    390 R3141 2.4K R3144 R3104
    NU C3113 NU
    Q3141 22pF C3115C3122
    .039uF R3107
    RFIN_DEC5RSSIOUT9RSSI_FEED
    6
    VCC 6.8K
    13LIM_DEC112LIM_DEC2
    20MIXOUT
    4OSCIN
    3OSCOUT
    10QUADIN
    1RFIN
    2
    AUDIOOUT7AUDIO_FEED
    GND15
    18IFAMPIN16IFAMPOUT19IFAMP_DEC117IFAMP_DEC2
    14LIMIN
    11LIMOUT
    7
    SA616U3101
    8
    MC74HC4066U3115-1CNTL
    131
    2VDD
    14VSS
    12KR3101 IFIN_U HF_IF_1
    C3133
    10uFC3152
    .01uF
    0.1uF C3142
    DISCAUDIO L3100
    0.1uF 9V3
    NU
    455KHz3
    2 1
    C3134 33pFBWSELECT
    Y3102 C3103R3152
    C3147
    0.1uF10K 0.1uF C3111
    OUT6
    20pF C3101
    GND1 1
    2
    GND2
    4
    GND3
    GND4 5
    IN 3
    30pF 12R16 FL3102
    33pF
    C3136 C3135
    NU L3124CNTL
    1211 10VDD
    14VSS7U3111-4
    .039uFC3123 9V3_VHF_IF_2
    .01uF C3151
    51
    4700pF C3146 R313010K R3153
    12K C3148
    R3147
    5
    CNTL4
    314VDD7VSS
    NU U3111-2
    MC74HC4066
    NU C3131C3137
    .039uF
    3GND
    1
    IN2
    OUT
    RSSI FL3114
    CFUCJ455D11
    10 VDD
    14VSS7
    0.1uF C31161
    IN2
    OUTMC74HC4066 U3115-4
    CNTL
    12
    5VFL3112
    CFWC455D
    3GND1
    GND2
    4
    100 R3105NU R31142
    R3134
    10KCFWC455FFL3115
    GND13
    4
    GND2
    IN 1
    OUT
    620nH
    1
    IN 9V3_UHF_IF_1
    L3112
    44.395MHzY3101
    2 GND
    4 GND1
    3
    OUT0.1uF C3145
    620nH L3101
    6CNTL 8
    9
    14
    VDD7VSS
    RSSI_UHF_IF_1 9
    14VDD7VSS
    U3111-3
    U3115-3
    MC74HC4066
    6CNTL 8
    NU C3124NU R3124 C3114
    18pF C3104
    0.1uFC3121
    0.1uF
    Q3101
    D3101
    0 R3123330R3113
    15pF C3102R3145
    5V3.3K 5V9V3
    9V3 9V3 9V3
    9V3
    5V 9V3
    5V9V3
    UHF (403-470 MHz) IF
    ZWG0130623-O 
    						
    							4-20UHF 1-25W PCB / Schematics / Parts ListUHF PCB 8485670Z03 Parts List 1-25W
    Circuit 
    RefMotorola 
    Part No.DescriptionC3101
    2113740F34
    20pF
    C3102 2113740F31 15pF
    C3103
    2113740F39
    33pF
    C3104 2113743E20 10uF
    C3110
    2113740F37
    27pF
    C3111 2113743E20 10uF
    C3112
    2113740F49
    82pF
    C3114 2113740F33 18pF
    C3115
    2113740F35
    22pF
    C3116 2113743E20 10uF
    C3121
    2113743E20
    10uF
    C3122 2113743E11 0.039uF
    C3123
    2113743E11
    0.039uF
    C3132 2113743E20 10uF
    C3133
    2311049A57
    10uF
    C3134 2113743E20 10uF
    C3135
    2113740L30
    33pF
    C3136 2113740L29 30pF
    C3137
    2113743E11
    0.039uF
    C3139 2113743E20 10uF
    C3140
    2113743E20
    10uF
    C3141 2113743E20 10uF
    C3142
    2113743E20
    10uF
    C3143 2113740F53 120pF
    C3144
    2113743E20
    10uF
    C3145 2113743E20 10uF
    C3146
    2113741F41
    4700pF
    C3147 2113743E20 10uF
    C3151
    2113741F49
    10nF
    C3152 2113741F49 10nF
    C4001
    2113740F09
    1.8pF
    C4002 2113740F39 33pF
    C4003
    2113740F40
    36pF
    C4004 2113740F39 33pF
    C4005
    2113740F39
    33pF
    C4006 2113740F39 33pF
    C4007
    2113740F38
    30pF
    C4008 2113741F25 1000pF
    C4009
    2113740F27
    10pF
    C4010 2113741F13 330pF
    C4011
    2113741F37
    3300pF
    C4012 2113741F13 330pF
    C4013
    2113741F37
    3300pF
    C4014 2113740F51 100pF
    C4015
    2113740F51
    100pF
    C4017 2113740F09 1.8pF
    C4018
    2113740F29
    12pF
    C4019 2113740F29 12pF
    C4020
    2113740F39
    33pF
    C4021 2113740F39 33pF
    C4022
    2113740F39
    33pF
    C4023 2113740F29 12pF
    C4024
    2113741F25
    1000pF
    C4026 2113740F09 1.8pF
    C4027
    2113740F09
    1.8pF
    C4028 2113741F49 10nF
    C4029
    2113740F09
    1.8pF
    C4030 2113740F09 1.8pF
    C4031
    2113740F30
    13pF
    C4051 2113740F27 10pF
    C4052
    2113740F49
    82pF
    C4053 2113740F32 16pF
    C4054
    2113740F32
    16pF
    C4061 2113740F63 330pF
    C4062
    2113743E20
    10uF
    C4064 2113743E20 10uF
    C4065
    2113740F51
    100pF
    C4067 2113741F37 3300pF
    C4068
    2113740F51
    100pF
    C4069 2113741F49 10nF
    C4201
    2113740F51
    100pF
    C4202 2113741F49 10nF
    C4203
    2113741F49
    10nF
    C4204 2113740F51 100pF
    C4205
    2113741F49
    10nF
    C4206 2311049J25 10uF
    C4208
    2113743E20
    10uF
    C4209 2113743E20 10uF
    C4210
    2104993J02
    2.2uF
    C4211 2113743E20 10uF
    C4213
    2311049A09
    2.2uF
    C4214 2311049A09 2.2uF
    C4215
    2311049A09
    2.2uF
    C4217 2113741F49 10nF
    C4221
    2109720D01
    0.01uF
    C4222 2109720D14 0.1uF
    C4224
    0882422W23
    1uF
    C4225 2113741F18 510pF
    C4226
    2113740L03
    2.4pF
    C4227 2113740F27 10pF
    C4230
    2104993J02
    2.2uF
    C4231 2113741F49 10nF
    C4232
    2113741F49
    10nF
    C4233 2104993J02 2.2uF
    C4234
    2113741F49
    10nF
    C4235 2113741F49 10nF
    C4236
    2113743E12
    0.047uF
    C4242 2113740F51 100pF
    C4243
    2113740F51
    100pF
    C4244 2113740F51 100pF
    C4245
    2113740F51
    100pF
    Circuit 
    RefMotorola 
    Part No.Description
    C4246 2113740F51 100pFC4251
    2113743E20
    10uF
    C4252 2113741F25 1000pF
    C4253
    2311049A56
    4.7uF
    C4254 2113743E20 10uF
    C4255
    2113740F51
    100pF
    C4263 2113743E20 10uF
    C4287
    2113740F51
    100pF
    C4289 2113743E20 10uF
    C4301
    2113740F51
    100pF
    C4302 2113740L16 8.2pF
    C4303
    2113740L16
    8.2pF
    C4304 2113740L08 3.9pF
    C4306
    2113740L01
    2pF
    C4307 2113740F51 100pF
    C4308
    2113743E20
    10uF
    C4309 2113740F51 100pF
    C4311
    2113740F51
    100pF
    C4312 2113740F29 12pF
    C4314
    2113740F07
    1.5pF
    C4315 2113740F51 100pF
    C4316
    2109720D14
    0.1uF
    C4318 2113743E20 10uF
    C4321
    2113740F03
    1pF
    C4324 2113740L03 2.4pF
    C4325
    2311049A56
    4.7uF
    C4331 2113740L14 6.8pF
    C4335
    2113740F51
    100pF
    C4336 2113743E07 0.022uF
    C4337
    2113740F44
    51pF
    C4338 2113740F44 51pF
    C4351
    2113740F51
    100pF
    C4352 2113743E20 10uF
    C4353
    2113743E20
    10uF
    C4354 2104993J02 2.2uF
    C4355
    2104993J02
    2.2uF
    C4361 2113741F25 1000pF
    C4364
    2113740F21
    5.6pF
    C4365 2113740F07 1.5pF
    C4371
    2113743E20
    10uF
    C4400 2113740F67 470pF
    C4401
    2113740F51
    100pF
    C4402 2113741F37 3300pF
    C4403
    2113740F23
    6.8pF
    C4404 2113740F51 100pF
    C4405
    2113740F51
    100pF
    C4406 2113740F51 100pF
    C4407
    2113740F51
    100pF
    C4408 2113740F51 100pF
    C4411
    2113741F37
    3300pF
    C4412 2113740F51 100pF
    Circuit 
    RefMotorola 
    Part No.Description
    C4414
    2113740F51
    100pF
    C4415 2113743E07 0.022uF
    C4416
    2113740F51
    100pF
    C4417 2113740F38 30pF
    C4419
    2113740F33
    18pF
    C4420 2113740F28 11pF
    C4421
    2113741A57
    33K F
    C4422 2113740A55 100pF
    C4423
    2311049A08
    1uF
    C4425 2113741F49 10nF
    C4426
    2113740F51
    100pF
    C4427 2113741F37 3300pF
    C4428
    2113741F33
    2200pF
    C4431 2111078B23 24pF
    C4434
    2113741F49
    10nF
    C4435 2113740A55 100pF
    C4436
    2311049A45
    10uF
    C4437 2113741A57 33K F
    C4439
    2111078B42
    100pF
    C4440 2113741F25 1000pF
    C4441
    2111078B18
    15pF
    C4446 2111078B09 6.8pF
    C4448
    2111078B29
    33pF
    C4449 2111078B29 33pF
    C4451
    2113741F25
    1000pF
    C4452 2113740F30 13pF
    C4453
    2113740F51
    100pF
    C4455 2111078B12 9.1pF
    C4457
    2111078B27
    30pF
    C4458 2111078B32 39pF
    C4459
    2113740F51
    100pF
    C4471 2113740F51 100pF
    C4472
    2111078B31
    36pF
    C4473 2111078B31 36pF
    C4474
    2113740F51
    100pF
    C4475 2113740F21 5.6pF
    C4491
    2111078B12
    9.1pF
    C4492 2111078B32 39pF
    C4496
    2111078B09
    6.8pF
    C4497 2111078B07 5.6pF
    C4501
    2113741F33
    2200pF
    C4502 2113741F33 2200pF
    C4503
    2113740F67
    470pF
    C4504 2113741F49 10nF
    C4505
    2311049A07
    1uF
    C4506 2113741F33 2200pF
    C4507
    2113740F51
    100pF
    C4508 2113740F51 100pF
    C4510
    2113740F51
    100pF
    CR4301 4805649Q13 DIODE, VARACTOR
    CR4302
    4862824C01
    DIODE, VARACTOR
    Circuit 
    RefMotorola 
    Part No.Description 
    						
    							UHF 1-25W PCB / Schematics / Parts List4-21CR4303 4862824C01 DIODE, VARACTORCR4311
    4802245J22
    DIODE, VARACTOR
    CR4321 4862824C01 DIODE, VARACTOR
    D3101
    4880154K03
    DIODE DUAL SCHOTTKY
    D4001 4862824C01 DIODE, VARACTOR
    D4002
    4862824C01
    DIODE, VARACTOR
    D4003 4880154K03 DIODE DUAL SCHOTTKY
    D4004
    4862824C01
    DIODE, VARACTOR
    D4005 4862824C01 DIODE, VARACTOR
    D4006
    4880142L01
    DIODE
    D4007 4813833C02 DIODE, DUAL 70V
    D4051
    4886143B01
    DIODE, MIXER
    D4201 4802233J09 DIODE, TRIPLE
    D4221
    4813825A05
    DIODE
    D4401 4813833C02 DIODE, DUAL 70V
    D4451
    4813825A05
    DIODE
    D4471 4802482J02 DIODE
    D4472
    4802482J02
    DIODE
    FL3101 9180112R16 2 POLE 44.85 MHZ CRYSTAL 
    FILTER
    FL3102
    9180112R16
    2 POLE 44.85 MHZ CRYSTAL 
    FILTER
    FL3111 9180469V03 6 ELEMENT CER FILTER, 
    455KHz
    FL3112
    9180469V06
    6 ELEMENT CER FILTER, 
    455KHz
    FL3114 9180468V06 4 ELEMENT CER FILTER, 
    455KHz
    FL3115
    9180469V04
    6 ELEMENT CER FILTER, 
    455KHz
    J4401 0986166B01 MOBILE RF CONNECTOR 
    (BNC)
    L3101
    2462587T25
    620nH
    L3111 2462587T25 620nH
    L3112
    2462587T25
    620nH
    L4003 2462587T23 470nH
    L4006
    2462587V24
    15nH
    L4008 2462587T23 470nH
    L4051
    2462587T17
    150nH
    L4053 2462587N46 27nH
    L4054
    2462587N43
    15nH
    L4201 2462587Q42 390nH
    L4221
    2462587P25
    12000nH
    L4231 2462587Q20 2200nH
    L4301
    2462587T22
    390nH
    L4302 2462587T22 390nH
    L4303
    2460593C01
    RESONATOR
    L4304 2462587T22 390nH
    L4305
    2462587T22
    390nH
    L4311 2462587T22 390nH
    L4312
    2460593C01
    RESONATOR
    Circuit 
    RefMotorola 
    Part No.Description
    L4313 2462587T22 390nHL4331
    2462587T09
    33nH
    L4333 2462587T22 390nH
    L4361
    2462587T09
    33nH
    L4362 2462587T09 33nH
    L4371
    2462587T13
    68nH
    L4401 2460591B04 11.03nH
    L4402
    2484657R01
    Ferrite Bead
    L4403 2462587N50 56nH
    L4411
    2462587N44
    18nH
    L4421 2484657R01 Ferrite Bead
    L4422
    2460591A01
    4.22nH
    L4436 2484657R01 Ferrite Bead
    L4437
    2460592A01
    17nH
    L4471 2462587T22 390nH
    L4472
    2460592A01
    17nH
    L4491 2460592A01 17nH
    L4493
    2460592A01
    17nH
    M3421 2686201B01 HEAT SPREADER
    Q3101
    4813827A07
    NPN
    Q3102 4813827A07 NPN
    Q3141
    4880214G02
    NPN
    Q3151 4880048M01 NPN
    Q3152
    4880048M01
    NPN
    Q4002 4813824A17 PNP
    Q4003
    4813827A07
    NPN
    Q4004 4805921T02 TRANSISTOR DUAL DIGITAL 
    NPN/PNP
    Q4221
    4880048M01
    NPN
    Q4301 4805218N63 DIODE DUAL SCHOTTKY
    Q4332
    4813827A07
    NPN
    Q4333 4802245J50 TRANSISTOR DUAL NPN/PNP
    Q4411
    4805921T02
    TRANSISTOR DUAL DIGITAL 
    NPN/PNP
    Q4421 4886212B01 MRF1518
    Q4422
    4880048M01
    NPN
    Q4441 4886163B01 MRF1535
    Q4442
    4880048M01
    NPN
    Q4471 4880048M01 NPN
    Q4472
    4805128M27
    PNP
    R3101 0662057A75 12K Ohm
    R3102
    0662057A01
    10 Ohm
    R3105 0662057A25 100 Ohm
    R3106
    0662057A83
    27K Ohm
    R3107 0662057A69 6800 Ohm
    R3108
    0662057A44
    620 Ohm
    R3111 0662057A75 12K Ohm
    R3112
    0662057A01
    10 Ohm
    R3113 0662057A37 330 Ohm
    R3115
    0662057A39
    390 Ohm
    R3116 0662057A37 330 Ohm
    Circuit 
    RefMotorola 
    Part No.Description
    R3117
    0662057A83
    27K Ohm
    R3118 0662057A69 6800 Ohm
    R3123
    0662057B47
    0 Ohm
    R3130 0662057A18 51 Ohm
    R3132
    0662057A77
    15K Ohm
    R3133 0662057A71 8200 Ohm
    R3134
    0662057A73
    10K Ohm
    R3135 0662057A51 1200 Ohm
    R3141
    0662057A39
    390 Ohm
    R3142 0662057A55 1800 Ohm
    R3144
    0662057A58
    2400 Ohm
    R3145 0662057A61 3300 Ohm
    R3146
    0662057A45
    680 Ohm
    R3147 0662057A75 12K Ohm
    R3148
    0662057B47
    0 Ohm
    R3151 0662057A73 10K Ohm
    R3152
    0662057A73
    10K Ohm
    R3153 0662057A73 10K Ohm
    R3154
    0662057A73
    10K Ohm
    R4001 0662057A97 100K Ohm
    R4002
    0662057A37
    330 Ohm
    R4003 0662057A63 3900 Ohm
    R4004
    0662057A59
    2700 Ohm
    R4005 0662057A73 10K Ohm
    R4007
    0662057A25
    100 Ohm
    R4012 0662057A97 100K Ohm
    R4013
    0662057A35
    270 Ohm
    R4014 0662057A01 10 Ohm
    R4016
    0662057A61
    3300 Ohm
    R4018 0662057A61 3300 Ohm
    R4022
    0662057B47
    0 Ohm
    R4051 0662057A18 51 Ohm
    R4052
    0662057B47
    0 Ohm
    R4060 0662057B10 330K Ohm
    R4061
    0662057A73
    10K Ohm
    R4062 0662057A53 1500 Ohm
    R4063
    0662057A39
    390 Ohm
    R4064 0662057B47 0 Ohm
    R4068
    0662057A53
    1500 Ohm
    R4069 0662057A49 1000 Ohm
    R4070
    0662057A39
    390 Ohm
    R4071 0662057A73 10K Ohm
    R4072
    0662057A73
    10K Ohm
    R4201 0662057A29 150 Ohm
    R4203
    0662057A17
    47 Ohm
    R4204 0662057A17 47 Ohm
    R4211
    0662057B47
    0 Ohm
    R4221 0662057A29 150 Ohm
    R4222
    0662057A42
    510 Ohm
    R4223 0662057A21 68 Ohm
    R4224
    0662057A89
    47K Ohm
    Circuit 
    RefMotorola 
    Part No.Description
    R4225 0662057A89 47K OhmR4228
    0662057A73
    10K Ohm
    R4241 0662057A33 220 Ohm
    R4251
    0662057A87
    39K Ohm
    R4252 0662057A84 30K Ohm
    R4261
    0662057A89
    47K Ohm
    R4263 0662057A25 100 Ohm
    R4301
    0662057A67
    5600 Ohm
    R4302 0662057A73 10K Ohm
    R4303
    0662057A12
    30 Ohm
    R4304 0662057A31 180 Ohm
    R4305
    0662057A01
    10 Ohm
    R4311 0662057A70 7500 Ohm
    R4312
    0662057A67
    5600 Ohm
    R4313 0662057A12 30 Ohm
    R4314
    0662057A35
    270 Ohm
    R4315 0662057B47 0 Ohm
    R4321
    0662057A91
    56K Ohm
    R4322 0662057A73 10K Ohm
    R4323
    0662057A97
    100K Ohm
    R4331 0662057A09 22 Ohm
    R4341
    0662057B47
    0 Ohm
    R4342 0662057A57 2200 Ohm
    R4343
    0662057A49
    1000 Ohm
    R4344 0662057A01 10 Ohm
    R4346
    0662057A73
    10K Ohm
    R4347 0662057B47 0 Ohm
    R4360
    0662057A35
    270 Ohm
    R4361 0662057A31 180 Ohm
    R4362
    0662057A01
    10 Ohm
    R4363 0662057A49 1000 Ohm
    R4381
    0662057A41
    470 Ohm
    R4400 0662057A43 560 Ohm
    R4401
    0662057A36
    300 Ohm
    R4402 0662057A05 15 Ohm
    R4403
    0662057A36
    300 Ohm
    R4404 0662057A89 47K Ohm
    R4406
    0662057A97
    100K Ohm
    R4412 0662057A69 6800 Ohm
    R4413
    0662057A61
    3300 Ohm
    R4415 0662057A18 51 Ohm
    R4416
    0662057A18
    51 Ohm
    R4418 0662057A59 2700 Ohm
    R4421
    0662057A87
    39K Ohm
    R4422 0662057A57 2200 Ohm
    R4423
    0662057A87
    39K Ohm
    R4424 0662057C13 2.7 Ohm
    R4425
    0662057C13
    2.7 Ohm
    R4426 0662057C13 2.7 Ohm
    R4427
    0662057C13
    2.7 Ohm
    R4428 0662057A58 2400 Ohm
    Circuit 
    RefMotorola 
    Part No.Description 
    						
    							4-22UHF 1-25W PCB / Schematics / Parts List
    * Motorola Depot Servicing only
    Reference designators with an asterisk indicate 
    components which are not field replaceable 
    because they need to be calibrated with 
    specialized factory equipment after installation. 
    Radios in which these parts have been replaced in 
    the field will be off frequency at temperature 
    extremes.
    R4429
    0662057A59
    2700 Ohm
    R4431 0680194M18 51 Ohm
    R4441
    0662057A87
    39K Ohm
    R4442 0662057A57 2200 Ohm
    R4443
    0662057A87
    39K Ohm
    R4445 0662057A58 2400 Ohm
    R4446
    0662057B47
    0 Ohm
    R4452 0662057A75 12K Ohm
    R4454
    0662057A73
    10K Ohm
    R4455 0662057A97 100K Ohm
    R4457
    0683962T51
    120 Ohm
    R4458 0662057A41 470 Ohm
    R4471
    0662057A41
    470 Ohm
    R4473 0680194M18 51 Ohm
    R4474
    0680194M18
    51 Ohm
    R4475 0662057A73 10K Ohm
    R4491
    0662057A73
    10K Ohm
    R4501 0662057A69 6800 Ohm
    R4502
    0662057A83
    27K Ohm
    R4504 0662057A73 10K Ohm
    R4505
    0662057B09
    300K Ohm
    R4507 0662057A80 20K Ohm
    R4508
    0662057A97
    100K Ohm
    R4509 0662057A49 1000 Ohm
    R4511
    0662057C19
    4.7 Ohm
    SH4301 2602641Y02 SHIELD
    SH4302
    2602641Y02
    SHIELD
    T4051 2505515V03 XFMR MIXER 4:1
    T4052
    2505515V04
    XMFR MIXER 5:1
    U3101 5186144B01 IC, IF
    U 3 111
    5102463J52
    QUAD ANALOG SWITCH
    U3115 5102463J52 QUAD ANALOG SWITCH
    U4201
    5185963A27
    IC FRACTN
    U4211 5105739X05 IC, VOLTAGE REGULATOR
    U4301
    5105750U54
    IC, VCO
    U4401 5185130C65 IC LDMOS DRIVER
    U4402
    5113818A01
    LOW POWER SUPPLY
    U4501 5185765B28 IC POWER CONTROL 
    U4502
    5185963A15
    IC TEMPERATURE SENSOR
    VR4471 4813830A15 DIODE, 5.6V
    Y3101
    4880606B09
    2ND OSC XTAL 44.395 MHZ
    Y3102 9186145B02 455KHz DISCRIMINATOR
    Y4262
    4886182B01
    TCXO 16.8MHZ
    Circuit 
    RefMotorola 
    Part No.Description 
    						
    							 GM328/GM338/GM398
    Mobile Radios
    UHF Band 2 (450-527MHz)
    Service Information
    Issue: December, 2003 
    						
    							Computer Software Copyrights
    The Motorola products described in this manual may include copyrighted Motorola computer programs stored 
    in semiconductor memories or other media. Laws in the United States and other countries preserve for 
    Motorola certain exclusive rights for copyrighted computer programs, including the exclusive right to copy or 
    reproduce in any form, the copyrighted computer program. Accordingly, any copyrighted Motorola computer 
    programs contained in the Motorola products described in this manual may not be copied or reproduced in 
    any manner without the express written permission of Motorola. Furthermore, the purchase of Motorola 
    products shall not be deemed to grant, either directly or by implication, estoppel or otherwise, any license 
    under the copyrights, patents or patent applications of Motorola, except for the normal non-exclusive royalty-
    free license to use that arises by operation of law in the sale of a product. 
    						
    							i
    Table of Contents
    Section 1 Model Chart and Technical Specifications
    1.0 GM328/GM338/GM398 Model Chart ................................................................... 1-1
    2.0 Technical Specifications ...................................................................................... 1-2
    Section 2 Theory of Operation
    1.0 Introduction .......................................................................................................... 2-1
    2.0 UHF (450-527 MHz) Receiver ............................................................................. 2-1
    2.1 Receiver Front-End ........................................................................................ 2-1
    2.2 Front-End Band-Pass Filters & Pre-Amplifier ................................................. 2-2
    2.3 First Mixer and High Intermediate Frequency (IF) .......................................... 2-2
    2.4 Low Intermediate Frequency (IF) and Receiver Back End ............................. 2-3
    3.0 UHF (450-527 MHz) Transmitter Power Amplifier (PA) 25 W.............................. 2-3
    3.1 First Power Controlled Stage.......................................................................... 2-4
    3.2 Power Controlled Driver Stage ....................................................................... 2-4
    3.3 Final Stage ..................................................................................................... 2-4
    3.4 Directional Coupler ......................................................................................... 2-5
    3.5 Antenna Switch............................................................................................... 2-5
    3.6 Harmonic Filter ............................................................................................... 2-5
    3.7 Power Control ................................................................................................. 2-5
    4.0 UHF (450-527 MHz) Frequency Synthesis .......................................................... 2-6
    4.1 Reference Oscillator ....................................................................................... 2-6
    4.2 Fractional-N Synthesizer ................................................................................ 2-7
    4.3 Voltage Controlled Oscillator (VCO) ............................................................... 2-8
    4.4 Synthesizer Operation .................................................................................... 2-9
    Section 3 Troubleshooting Charts
    1.0 Troubleshooting Flow Chart for Receiver ............................................................ 3-1
    2.0 Troubleshooting Flow Chart for 25W Transmitter ................................................ 3-3
    3.0 Troubleshooting Flow Chart for Synthesizer ........................................................ 3-6
    4.0 Troubleshooting Flow Chart for VCO ................................................................... 3-7 
    						
    							ii
    Section 4 UHF PCB/Schematics/Parts Lists
    1.0 Allocation of Schematics and Circuit Boards ....................................................... 4-1
    1.1 Controller Circuits ........................................................................................... 4-1
    2.0 UHF Band 2 1-25W PCBs / Schematics / Parts List ............................................ 4-3
    UHF Band 2 (450-527 MHz) 1-25W 8485671Z03 Top Side................................... 4-3
    UHF Band 2 (450-527 MHz) 1-25W 8485671Z03  Bottom Side ............................ 4-4
    UHF Band 2 (450-527 MHz) Power Amplifier 1 - 25W ........................................... 4-5
    UHF Band 2 (450-527 MHz) FRACN ..................................................................... 4-6
    UHF Band 2 (450-527 MHz) Voltage Controlled Oscillator .................................... 4-7
    UHF Band 2 (450-527 MHz) Receiver Front End ................................................... 4-8
    UHF Band 2 (450-527 MHz) IF............................................................................... 4-9
    UHF Band 2  PCB 8485671Z03 Parts List 1-25W................................................ 4-10 
    						
    							1-1
    Section 1
    MODEL CHART AND TECHNICAL SPECIFICATIONS
    1.0 GM328/GM338/GM398 Model Chart
    GM Series, UHF Band 2, 450-527 MHz
    Model Description
    AZM25SHC9AA1GM328 450-527 MHz 1-25W
    AZM25SHF9AA5 GM338 450-527 MHz 1-25W
    AZM25SHN9AA8GM398 450-527 MHz 1-25W
    Item Description
    X GCN6112_ GM328 Control Head Direct Mount
    XGCN6114_GM338 Control Head Direct Mount
    X GCN6115_ GM398 Control Head Direct Mount
    XXIMUE6022_Tanapa WM 450-527 MHz 1-25W
    X IMUE6043 Tanapa WM 450-527 MHz 1-25W
    XXXRAE4155_BNC 470-512 MHz, 1/4 Wave Roof Mount
    XXXRAE4156_ BNC 470-494 MHz, 3.5 Gain Roof Mount
    XXXRAE4157_BNC 494-512 MHz, 5dB Gain Roof Mount
    X 6804113J74 GM328 User Guide
    X6804112J06GM338 User Guide
    X 6804112J07 GM398 User Guide
    x = Indicates one of each is required. 
    						
    							1-2Technical Specifications
    2.0 Technical Specifications
    Data is specified for +25°C unless otherwise stated.
    General Specifications
    Channel Capacity
    GM328
    GM338
    GM398
    4
    128
    160
    Power Supply 13.2Vdc (10.8 - 15.6Vdc)
    Dimensions:  H x W x D (mm)  Depth excluding knobsGM328
    56mm x 176mm x 177mm
    (add 8mm for Volume Knob)
    Dimensions:  H x W x D (mm)  Depth excluding knobsGM338
    59mm x 179mm x 186mm (1 - 25W)
    59mm x 179mm x 198mm (25 - 45W)
    (add 9mm for Volume Knob)
    Dimensions:  H x W x D (mm)  Depth excluding knobsGM398
    72mm x 185mm x 188mm
    (add 8mm for Volume Knob)
    Weight GM328/GM338 1400 g
    Weight GM398 1500 g
    Sealing: Withstands rain testing per 
    MIL STD 810 C/D/E and IP54
    Shock and Vibration: Protection provided via impact
    resistant housing exceeding MIL STD 
    810-C/D/E
    Dust, Salt & Fog: Protection provided via environment 
    resistant housing exceeding MIL STD 
    810 C/D/E  
    						
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