Codan NGT 2010 RF - NGT-Technical description (2010)

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NGT Transceiver System Technical Service Manual 69

NGT—Technical description (2010)

This section contains the following topics:

Power on (70)

Power off (71)

Supply voltages (72)

Transmit path (75)

Receive path (87)

Frequency control (93)

Microprocessors and control (96)

Internal voice encryptor (101)

Second IF filter option (102)

This section should be read in conjunction with page 201, NGT—Drawings.

Main Page

Table of contents3
- Index3
- NGT-Index3
- High power-Index8
- NRI-Index9
- 3012-Index9
- 8571-Index10
List of figures13
List of tables17
Index21
About this manual25
- Volume 125
- Volume 226
- Volume 326
- Standards and icons28
- Definitions29
- About this issue40
  - Associated documents40
Compliance41
- Introduction42
- European Radio and Telecommunications Terminal Equipment Directive43
- Electromagnetic compatibility and safety notices45
- FCC compliance47
  - FCC Part 90 certification47
  - FCC Part 15 compliance47
- IC certification48
  - Product markings and labelling48
- C-tick approval48
Maintenance49
- General49
- CMOS devices50
- Circuit boards50
- Transmitter precautions52
- Probe precautions52
Contact information53
Ordering information55
- Table 2: Resistor and capacitor abbreviations55
- Ordering information55
- Component substitution56
NGT-Index57
NGT-Overview and specifications63
- Overview64
  - Figure 1: Relationship of the 2010 RF Unit, 2030 Junction Box, and 2020 Handset64
  - Figure 2: Relationship of the 2011/2012 RF Unit and 2020 Handset65
- Specifications66
- Pin connections71
NGT-Brief description (2010)85
- 03-01032 Issue 287
- 03-01032 Issue 488
- General information89
- Transmit path91
- Receive path92
  - RF unit receive path92
  - Junction box receive path92
- Synthesiser operation93
- Control and switching93
NGT-Brief description (2011/2012)95
- 03-0112697
- 03-0119098
- General information99
- Transmit path100
  - Handset transmit path100
  - RF unit transmit path100
- Receive path101
  - RF unit receive path101
- Synthesiser operation102
- Control and switching102
NGT-Technical description (2010)103
- Power on104
- Power off105
- Supply voltages106
- Transmit path109
- Receive path121
- Frequency control127
- Microprocessors and control130
- Internal voice encryptor135
- Second IF filter option136
NGT-Technical description (2011/2012)137
- Power on138
- Power off139
- Supply voltages140
  - Handset140
    - Table 26: Supply voltages for the Handset PCB in the handset140
  - RF unit140
- Transmit path143
- Receive path150
- Frequency control155
- Microprocessors and control158
  - Handset microprocessor and control158
  - RF unit-microprocessors and control159
- Internal voice encryptor162
NGT-Channel additions163
- General164
  - Options164
- Programming channels168
NGT-Checks and adjustments179
- Test equipment required180
- Voltage regulators181
- Crystal oven186
- Low-pass filters186
- Service mode187
- Testing the keypad and display193
- Adjustment locations and test points194
- Checking the voltage-controlled oscillator200
- Aligning the 45 MHz filters201
  - Aligning the Rx filter201
    - Figure 38: Receive sweep test display201
  - Aligning the Tx filter202
    - Figure 39: Transmit sweep test display202
- Aligning the 455 kHz IF and noise limiter203
- Adjusting the exciter output level204
  - Figure 40: Setup for test unit with a 2010/2012 RF Unit204
  - Figure 41: Setup for test unit and NGT test handset with a 2011 RF Unit204
- Adjusting carrier re-insertion205
  - Figure 42: Graph showing adjustment to 90% modulation205
- Adjusting the exciter output spurious balance206
- Adjusting frequency207
- Adjusting mute209
- Adjusting the PA210
- Checking performance of the receiver224
- Checking performance of the transmitter228
NGT-Parts lists231
- Table 50: NGT parts lists index231
- 08-05513-001235
- 08-05514-001236
- 08-05628-003237
- 08-05628-001238
- 08-05628-002239
- 08-05628-007240
- 08-05628-005241
- 08-05628-004242
- 08-05628-009243
- 08-05300-001244
- 08-05522-001249
- 08-05523-001250
- 08-05524-001251
- 08-05470-001252
- 08-05986-001260
- 08-05317-001268
- 08-05266-001272
- 08-05265-001281
- 08-05261-001287
- 08-05889-001308
- 08-05235-002329
- 08-05963-001330
- 08-05962-001331
- 08-05973-001332
- 08-05415-001333
- 08-05869-001338
- 08-06461-001344
- 08-05416-001350
- 08-05910-001361
- 08-05511-001373
- 08-05988-001378
- 08-05987-001387
- 08-06261-001394
- 08-06260-001406
- 08-05890-001414
- 08-05890-002415
- 08-05267-001416
- 08-06320-001418
NGT-Drawings422
- Table 51: NGT-list of drawings422
- 04-03223428
- 04-03562429
- 04-03437430
- 04-03533431
- 08-05513432
- 08-05514 (sheet 1)433
- 08-05514 (sheet 2)434
- 08-05628 (sheet 1)435
- 08-05628 (sheet 2)436
- 08-05628 (sheet 3)437
- 08-05628 (sheet 4)438
- 04-03125439
- 08-05300440
- 08-05522441
- 08-05523442
- 08-05524443
- 04-03201444
- 08-05470445
- 04-03423446
- 08-05986 (sheet 1)447
- 08-05986 (sheet 2)448
- 04-03133449
- 08-05317450
- 04-03109451
- 08-05266452
- 04-03108 (sheet 1)453
- 04-03108 (sheet 2)454
- 08-05265455
- 04-03106 (sheet 1)456
- 04-03106 (sheet 2)457
- 04-03106 (sheet 3)458
- 08-05261 (sheet 1)459
- 08-05261 (sheet 2)460
- 04-03095461
- 08-05235462
- 04-03378 (sheet 1)463
- 04-03378 (sheet 2)464
- 04-03378 (sheet 3)465
- 04-03378 (sheet 1)466
- 04-03378 (sheet 2)467
- 04-03378 (sheet 3)468
- 08-05889 (sheet 1)469
- 08-05889 (sheet 2)470
- 08-05889 (sheet 1)471
- 08-05889 (sheet 2)472
- 04-03410473
- 04-03414474
- 08-05963475
- 08-05962476
- 08-05973477
- 04-03169478
- 08-05415479
- 08-05416480
- 08-05511 (sheet 1)481
- 08-05511 (sheet 2)482
- 04-03369483
- 08-05869 (sheet 1)484
- 08-05869 (sheet 2)485
- 08-05869 (sheet 3)486
- 08-05910 (sheet 1)487
- 08-05910 (sheet 2)488
- 04-03542489
- 08-06461 (sheet 1)490
- 08-06461 (sheet 2)491
- 08-06461 (sheet 3)492
- 08-05910 (sheet 1)493
- 08-05910 (sheet 2)494
- 04-03425495
- 08-05988 (sheet 1)496
- 08-05988 (sheet 2)497
- 04-03424 (sheet 1)498
- 04-03424 (sheet 2)499
- 08-05987500
- 04-03499 (sheet 1)501
- 04-03499 (sheet 2)502
- 08-06261 (sheet 1)503
- 08-06261 (sheet 2)504
- 04-03498 (sheet 1)505
- 04-03498 (sheet 2)506
- 08-06260507
- 04-03379508
- 08-05890509
- 15-10506-001510
- 15-10514-001511
- 04-03110512
- 08-05267513
- 04-03514514
- 08-06320515
- 04-03272516
High power-Index517
High power-Overview and specifications519
- Overview520
  - Figure 1: Basic layout of a 3061/3062 high-power system520
  - Figure 2: Basic layout of an HPAC module and an ALC adaptor module with vendor equipment520
- Specifications521
  - Power amplifier specifications (3061/3062)521
    - Table 1: Power amplifier specifications (3061/3062)521
  - Power amplifier specifications (TW500/TW1000)522
- Pin connections523
High power-Brief description531
- 03-01138533
- 03-01139534
- General information535
- Power amplifier (3061/3062)536
- HPAC and ALC adaptor modules with vendor equipment537
  - HPAC537
  - ALC adaptor537
High power-Technical description539
- LED indications on the NGT540
  - Table 8: Status of LED and its meaning540
- 3061/3062 power amplifiers541
  - Supply voltages541
  - Transmit path542
- External high-power systems545
  - Supply voltages545
    - Table 12: Supply voltages for the High-power PA & Antenna Control PCB in the HPAC545
    - Table 13: Supply voltages for the High-power ALC Adaptor PCB in the ALC adaptor module545
  - Transmit path546
    - High-power PA & Antenna Control PCB546
      - Table 14: Position of digi switch S1546
    - High-power ALC Adaptor PCB547
High power-Fault finding and adjustments549
- General information550
- Fault finding the power amplifiers (3061/3062)551
  - Table 15: Meaning of LED indicators on the front panel of the power amplifier551
  - Internal fault indicators552
    - Table 16: Meaning of internal LED indicators on the Control PCB552
- Adjusting the power amplifiers (3061/3062)553
- Adjusting the external high-power amplifier557
High power-Parts lists559
- Table 18: High power parts lists index559
- 08-05985-001561
- 08-05997-001563
- 08-05999-001564
- 08-05977-001565
- 08-05998-001569
- 08-06000-001570
- 08-05976-001571
- 08-05979-001575
- 08-05978-001585
- 08-05984-001592
- 08-06067-001593
- 08-06102-001594
- 08-05926-001595
- 08-05927-001600
High power-Drawings602
- Table 19: High power-list of drawings602
- 04-03422604
- 08-05985605
- 04-03419606
- 08-05997607
- 04-03420608
- 08-05999609
- 04-03416610
- 08-05977 (sheet 1)611
- 04-03428612
- 08-05998613
- 04-03429614
- 08-06000615
- 04-03415616
- 08-05976 (sheet 1)617
- 08-05976 (sheet 2)618
- 04-03418 (sheet 1)619
- 04-03418 (sheet 2)620
- 08-05979 (sheet 1)621
- 08-05979 (sheet 2)622
- 04-03417623
- 08-05978 (sheet 1)624
- 08-05978 (sheet 2)625
- 08-05978 (sheet 3)626
- 04-03421627
- 08-05984628
- 04-03453629
- 08-06067 (sheet 1)630
- 08-06067 (sheet 2)631
- 08-06102 (sheet 1)632
- 08-06102 (sheet 2)633
- 04-03377634
- 08-05926 (sheet 1)635
- 08-05926 (sheet 2)636
- 04-03407637
- 08-05927 (sheet 1)638
- 08-05927 (sheet 2)639
NRI-Index640
NRI-Overview and specifications642
- Overview643
  - Figure 1: Basic layout of the remote control NGT system643
  - Components in a remote control NGT system643
- Specifications645
- Pin connections647
NRI-Brief description652
- 03-01079654
- General information655
- NGT remote interface655
- Remote control junction box656
  - Modem adaptor656
NRI-Technical description657
- NRI User Connect PCB658
- NRI Microcontroller PCB659
- NRI Vocoder PCB661
NRI-Fault finding663
- PCB and unit replacement664
- Upgrading the NRI firmware665
  - Control site665
  - Transceiver site665
- Error messages666
  - Table 6: Error messages666
- LED indicators667
  - Table 7: Description of LEDs667
- Dismantling the NRI669
- Test procedures671
NRI-Parts lists681
- Table 10: NRI parts lists index681
- 08-05854-001683
- 08-05855-001690
- 08-05870-001695
NRI-Drawings698
- Table 11: NRI-list of drawings698
- 04-03363 (sheet 1)700
- 04-03363 (sheet 2)701
- 08-05854 (sheet 1)702
- 08-05854 (sheet 2)703
- 08-05854 (sheet 3)704
- 04-03364705
- 08-05855706
- 04-03370707
- 08-05870708
3012-Index709
3012-Overview and specifications711
- Overview712
- Specifications715
- Pin connections717
3012-Brief description719
- 03-01080721
- General information722
- DSP modem722
- Transceiver interface722
- Terminal interface722
3012-Technical description724
- DSP Modem PCB725
- User Connector PCB727
  - Transceiver interface727
  - Serial ports727
3012-Fault finding728
- Adjustments and routine maintenance729
  - PCBs and units available as replacements729
    - Table 3: Replacement PCBs and units for the 3012729
- Basic fault finding730
  - Table 4: Basic fault finding for the 3012730
- Advanced fault finding731
3012-Parts lists736
- Table 5: 3012 parts lists index736
- 08-05860-001738
- 08-05861-001743
3012-Drawings747
- Table 6: 3012-list of drawings747
- 04-03366 (sheet 1)749
- 04-03366 (sheet 2)750
- 08-05860 (sheet 1)751
- 08-05860 (sheet 2)752
- 04-03367753
- 08-05861754
8571-Index755
8571-Overview and specifications757
- Overview758
- Specifications760
- Pin connections762
8571-Brief description769
- 03-01108771
- General information772
- Receive audio path772
- Transmit audio path773
- Microprocessor control and signalling773
- Automatic line equalisation773
8571-Technical description774
- Backplane and power supply775
- Receive audio path776
- Transmit audio path779
- Signalling and microprocessor782
- Automatic equalisation787
  - Figure 9: Location of switch S1787
- Multi-line capability789
8571-Fault finding790
- Dismantling the NGT Split-site Remote Interface 8571791
- Fault finding792
8571-Parts lists800
- Table 10: 8571 parts lists index800
- 08-05994-001802
- 08-03905-002803
- 08-03993811
- 08-05995-001816
- 08-04644-001819
- 08-03817822
- 08-03995-001823
8571-Drawings824
- Table 11: 8571-list of drawings824
- 08-05994 (sheet 1)826
- 08-05994 (sheet 2)827
- 04-02541828
- 08-03905829
- 04-02690830
- 08-03993831
- 04-02691832
- 08-05995833
- 04-02852834
- 08-04644835
- 04-02487836
- 08-03817837
- 08-03995838
- 15-10509-001839
- 15-10510-001840

Codan NGT 2010 RF - NGT-Technical description (2010)

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