Axell Wireless 60-0561SERIES UHF Signal Extender User Manual RECEIVER MULTICOUPLER
Axell Wireless UHF Signal Extender RECEIVER MULTICOUPLER
Handbook
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-1 of 52
Pasadena Blue Line
Metro Radio System
Maintenance Handbook
For
Canam Technology Inc.
AFL Works Order Nō.: Q109394
AFL product part Nō.: 60-056104 800MHz BDA
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-2 of 52
Table of Contents
AMENDMENT LIST RECORD SHEET ................................................................................................. 4
INTRODUCTION ....................................................................................................................................... 5
Scope...........................................................................................................................................................................5
Purpose.......................................................................................................................................................................5
Glossary of Terms .....................................................................................................................................................6
AFL Drawing Symbol Keys......................................................................................................................................7
1. SAFETY CONSIDERATIONS ....................................................................................................... 8
1.1 Electric Shock Hazard .................................................................................................................................8
1.2 RF Radiation Hazard...................................................................................................................................8
1.3 Chemical Hazard..........................................................................................................................................9
1.4 Emergency Contact Numbers .....................................................................................................................9
2. OVERVIEW/SYSTEM DESCRIPTION ..................................................................................... 10
3. SPECIFICATIONS ........................................................................................................................ 11
3.1 800MHz Channelised BDA 60-056104 Parts Lists ..................................................................................11
3.2 Technical Specifications.............................................................................................................................13
3.2.5 800MHz 8 Channel Channelised BDA Technical Specification..............................................................13
3.3 Mechanical Specification ...........................................................................................................................14
3.3.1 800MHz BDA Wall Mount Case .............................................................................................................14
4. SYSTEM DRAWINGS .................................................................................................................. 15
4.1 Drg. Nō. 60-056194, 800MHz BDA Case Outline Drawing....................................................................15
4.2 800MHz Channelised PBL BDA System Diagram..................................................................................16
5. SUB-UNIT MODULES.................................................................................................................. 17
5.1 Bandpass Filter (02-011601)......................................................................................................................17
5.1.1 Description ...............................................................................................................................................17
5.1.2 Technical Specification ............................................................................................................................17
5.2 2-Way Splitter/Combiner (05-002602) .....................................................................................................18
5.2.1 Description ...............................................................................................................................................18
5.2.2 Technical Specification ............................................................................................................................18
5.3 4-Way Splitter/Combiner (05-003302) .....................................................................................................19
5.3.1 Description ...............................................................................................................................................19
5.3.2 Technical Specification ............................................................................................................................19
5.4 ¼Watt 0- -30dB Switched Attenuator (10-000701) .................................................................................19
5.4.1 General Application .................................................................................................................................19
5.4.2 Switched Attenuators ...............................................................................................................................19
5.5 Low Noise Amplifiers (11-005902 & 11-006702) .....................................................................................20
5.5.1 Description ...............................................................................................................................................20
5.5.2 Technical Specification (11-005902) .......................................................................................................20
5.5.3 Drg. Nō. 11-005902 LNA General Assembly Drawing...........................................................................21
5.5.4 Drg. Nō. 11-005970, LNA Circuit Diagram (RF)....................................................................................22
5.5.5 Drg. Nō. 11-005971, LNA Circuit Diagram (DC Wiring Layout) ..........................................................23
5.5.6 Technical Specification (11-006702) .......................................................................................................24
5.5.7 Drg. Nō. 11-006702, LNA General Assembly Drawing..........................................................................25
5.5.8 Drg. Nō. 11-006770, LNA Circuit Diagram (RF Components)...............................................................26
5.5.9 Drg. Nō. 11-006771, LNA DC Wiring Diagram .....................................................................................27
5.6 10Watt Power Amplifier (12-002105).......................................................................................................28
5.6.1 Description ...............................................................................................................................................28
5.6.2 Technical Specification ............................................................................................................................28
5.6.3 Drg. Nō. 12-002105, 10W PA Assembly Drawing..................................................................................29
5.6.4 Drg. Nō. 12-001275, 10W PA Circuit Diagram ......................................................................................30
5.6.5 Drg. Nō. 12-002175C12, PA Parts List(1)...............................................................................................31
5.6.6 Drg. Nō. 12-002175C2, PA Parts List(2).................................................................................................32
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-3 of 52
5.6.7 Drg. Nō. 80-008450, PA Alarm Wiring Details ......................................................................................33
5.7 3 Stage Alarm Board (12-002201).............................................................................................................34
5.7.1 Description ...............................................................................................................................................34
5.7.2 Technical Specification ............................................................................................................................35
5.7.3 Drg. Nō. 12-002201, 3 Stage Alarm Board Assembly Drawing & Parts List..........................................36
5.7.4 Drg. Nō. 12-002270, 3 Stage Alarm Board Circuit Diagram...................................................................37
5.7.5 Generic Wall Enclosure Alarm Wiring Sketch ........................................................................................38
5.8 DC/DC Converter, 24V in, 12V 8A out (13-003011) ...............................................................................39
5.8.1 Description ...............................................................................................................................................39
5.8.2 Technical Specification ............................................................................................................................39
5.8.3 Photo of Regulator PCB (regulator heatsink side) ...................................................................................39
5.9 Channel Control & Channel Selective Modules (17-002101 & 17-009127) ..........................................40
5.9.1 Channel Selective Module Description....................................................................................................40
5.9.2 Drg. Nō. 17-003080, Generic Channel Module Block Diagram..............................................................41
5.9.3 Channel Control Module Description ......................................................................................................42
5.9.4 Channel Controller Frequencies...............................................................................................................42
5.9.5 Channel Frequency Control Switch Table ...............................................................................................43
5.10 24V Single Relay Board (80-008902)........................................................................................................43
5.10.1 Description ...........................................................................................................................................43
5.11 24V 400W Flat-Pack Power Supply (96-300011) ....................................................................................44
5.11.1 Description ...........................................................................................................................................44
5.11.2 Technical Specification ........................................................................................................................44
6. INSTALLATION............................................................................................................................ 45
6.1 Initial Installation Record .........................................................................................................................45
6.2 General........................................................................................................................................................45
6.3 Electrical Connections ...............................................................................................................................45
6.4 RF Connections ..........................................................................................................................................45
6.5 Commissioning ...........................................................................................................................................46
7. MAINTENANCE............................................................................................................................ 47
7.1 General Procedures....................................................................................................................................47
7.1.1 Fault Finding ............................................................................................................................................47
7.1.2 Downlink..................................................................................................................................................48
7.1.3 Uplink.......................................................................................................................................................48
7.1.4 Fault repair ...............................................................................................................................................48
7.1.5 Checking service ......................................................................................................................................49
7.1.6 Service Support ........................................................................................................................................49
7.2 Tools & Test Equipment............................................................................................................................49
7.3 Care of Modules .........................................................................................................................................50
7.3.1 General Comments...................................................................................................................................50
7.3.2 Module Removal (LNA’s, general procedure): .......................................................................................50
7.3.3 Module Replacement (general): ...............................................................................................................50
7.3.4 Power Amplifiers .....................................................................................................................................50
7.3.5 Low Power Amplifier Replacement.........................................................................................................51
7.3.6 Module Transportation:............................................................................................................................51
APPENDIX A INITIAL EQUIPMENT SET-UP CALCULATIONS............................................... 52
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-4 of 52
AMENDMENT LIST RECORD SHEET
Issue
Nō.
Date Incorporated
by
Page No.’s
Amended
Reason for new issue
1 09/04/2003 CMH 1st Issue
Document Ref:-60-056100HBKM
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-5 of 52
INTRODUCTION
Scope
This handbook is for use solely with the equipment identified by the AFL Part Number
shown on the front cover. It is not to be used with any other equipment unless specifically
authorised by Aerial Facilities Limited. This is a controlled release document and, as such,
becomes a part of Aerial Facilities’ Total Quality Management System. Alterations and
modification may therefore only be performed by Aerial Facilities Ltd.
Purpose
The purpose of this handbook is to provide the user/maintainer with sufficient information
to service and repair the equipment to the level agreed. Maintenance and adjustments to any
deeper level must be performed by AFL, normally at the company’s repair facility in
Chesham, England.
This handbook has been prepared in accordance with BS 4884, and AFL’s Quality
procedures, which maintain the company’s registration to ISO 9001: 1994 and to the
R&TTE Directive of the European Parliament. Copies of the relevant certificates and the
company Quality Manual can be supplied on application to the Quality Manager.
This document fulfils the relevant requirements of Article 6 of the R&TTE Directive.
Limitation of Information Notice
This manual is written for the use of technically competent operators/service persons. No
liability is accepted by AFL for use or misuse of this manual, the information contained
therein, or the consequences of any actions resulting from the use of the said information,
including, but not limited to, descriptive, procedural, typographical, arithmetical, or listing
errors.
Furthermore, AFL does not warrant the absolute accuracy of the information contained
within this manual, or it’s completeness, fitness for purpose, or scope.
AFL has a policy of continuous product development and enhancement, and as such,
reserves the right to amend, alter, update and generally change the contents, appearance and
pertinence of this document without notice.
All AFL products carry a twelve month warranty from date of shipment. The warranty is
expressly on a return to base repair or exchange basis and the warranty cover does not
extend to on-site repair or complete unit exchange.
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-6 of 52
Glossary of Terms
Repeater or
Cell Enhancer A Radio Frequency (RF) amplifier which can simultaneously
amplify and re-broadcast Mobile Station (MS) and Base
Transceiver Station (BTS) signals.
Band Selective Repeater A Cell Enhancer designed for operation on a range of channels
within a specified frequency band.
Channel Selective
Repeater A Cell Enhancer, designed for operation on specified channel(s)
within a specified frequency band. Channel frequencies may be
factory set or on-site programmable.
BTS Base Transceiver Station
C/NR Carrier-to-Noise Ratio
Downlink (D.L.) RF signals transmitted from the BTS and to the MS
Uplink (U.L.) RF signals transmitted from the MS to the BTS
EMC Electromagnetic Compatibility
GND Ground
DC Direct Current
AC Alternating Current
ID Identification Number
OIP3 Output Third Order Intercept Point = RFout +(C/I)/2
LED Light Emitting Diode
M.S. Mobile Station
N/A Not Applicable
N/C No Connection
NF Noise Figure
RF Radio Frequency
Rx Receiver
Tx Transmitter
S/N Serial Number
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-7 of 52
AFL Drawing Symbol Keys
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-8 of 52
1. SAFETY CONSIDERATIONS
1.1 Electric Shock Hazard
Electrical shocks due to faulty mains driven power supplies.
Whilst ever potentially present in any electrical equipment, such a condition would be
minimised by quality installation practice and thorough testing at:
a) Original assembly.
b) Commissioning.
c) Regular intervals, thereafter.
All test equipment to be in good working order prior to its use. High current power supplies
can be dangerous because of the possibility of substantial arcing. Always switch off during
disconnection and reconnection.
1.2 RF Radiation Hazard
“CAUTION: This equipment is approved for antennas mounted on fixed outdoor permanent
structures. A minimum separation distance of 2 metres must be maintained between the
radiating elements and any nearby persons. A maximum antenna gain of 21 dBi may be used.
Operating this equipment without regard to these restrictions will result in RF exposure levels
above the limits allowed by FCC rules.”
This equipment complies with part 90 of the FCC rules. Any changes or modifications not
expressly approved by the manufacturer could void the user’s authority to operate the
equipment.
RF radiation, (especially at UHF frequencies) arising from transmitter outputs connected to
AFL’s equipment, must be considered a safety hazard.
This condition might only occur in the event of cable disconnection, or because a ‘spare’
output has been left unterminated. Either of these conditions would impair the system’s
efficiency. No investigation should be carried out until all RF power sources have been
removed. This would always be a wise precaution, despite the severe mismatch between the
impedance of an N type connector at 50Ω, and that of free space at 377Ω, which would
severely mitigate against the efficient radiation of RF power. Radio frequency burns could
also be a hazard, if any RF power carrying components were to be carelessly touched!
Antenna positions should be chosen to comply with requirements (both local & statutory)
regarding exposure of personnel to RF radiation. When connected to an antenna, the unit is
capable of producing RF field strengths, which may exceed guideline safe values especially if
used with antennas having appreciable gain. In this regard the use of directional antennas
with backscreens and a strict site rule that personnel must remain behind the screen while the
RF power is on, is strongly recommended.
Where the equipment is used near power lines, or in association with temporary masts not
having lightning protection, the use of a safety earth connected to the case-earthing bolt is
strongly advised.
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-9 of 52
1.3 Chemical Hazard
Beryllium Oxide, also known as Beryllium Monoxide, or Thermalox™, is sometimes used
in devices within equipment produced by Aerial Facilities Ltd. Beryllium oxide dust can be
toxic if inhaled, leading to chronic respiratory problems. It is harmless if ingested or by
contact.
Products that contain beryllium are load terminations (dummy loads) and some power
amplifiers. These products can be identified by a yellow and black “skull and crossbones”
danger symbol (shown above). They are marked as hazardous in line with international
regulations, but pose no threat under normal circumstances. Only if a component containing
beryllium oxide has suffered catastrophic failure, or exploded, will there be any danger of the
formation of dust. Any dust that has been created will be contained within the equipment
module as long as the module remains sealed. For this reason, any module carrying the
yellow and black danger sign should not be opened. If the equipment is suspected of failure,
or is at the end of its life-cycle, it must be returned to Aerial Facilities Ltd for disposal.
To return such equipment, please contact the Quality Department, who will give you a
Returned Materials Authorisation (RMA) number. Please quote this number on the packing
documents, and on all correspondence relating to the shipment.
PolyTetraFluoroEthylene, (P.T.F.E.) and P.T.F.E. Composite Materials
Many modules/components in AFL equipment contain P.T.F.E. as part of the RF insulation
barrier.
This material should never be heated to the point where smoke or fumes are evolved. Any
person feeling drowsy after coming into contact with P.T.F.E. especially dust or fumes
should seek medical attention.
1.4 Emergency Contact Numbers
The AFL Quality Department can be contacted on:
Telephone +44 (0)1494 777000
Fax +44 (0)1494 777002
e-mail qa@aerial.co.uk
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-10 of 52
2. OVERVIEW/SYSTEM DESCRIPTION
The AFL 800MHz Off Air Amplifier for the Pasadena Blue line project is an 8 way
channelised RF amplifier. It’s application is as an air interface between the donor radio site
and the tunnel leaky feeder system. The unit is housed in an environmentally protected IP65
steel wall-mount case. Handles are provided for carrying the unit and the door is fitted with
locks. The unit interfaces with ‘N’ type female connectors for RF connections and heavy duty
connectors for routing of AC power supply input and alarm output wiring.
The unit is housed in an environmentally protected IP65 steel wall-mount case. Handles are
provided for carrying the unit and the door is fitted with locks. The unit interfaces with ‘N’
type female connectors for RF connections and heavy duty connectors for routing of AC
power supply input and alarm output wiring.
To provide adequate selectivity in the Downlink and Uplink paths, combline design
duplexers are used at the input and output ports. To provide the required gain to reach the
required signal levels, low-noise amplifiers (LNA’s) are used in each path, these being
followed by power amplifier modules to provide the required intermodulation performance.
Gain adjustment is available locally using switched attenuators.
Note that “Downlink” refers to the RF path from FO receiver to the leaky feeder port and that
“Uplink” refers to the RF path from the leaky feeder port to the FO transmitter.
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-11 of 52
3. SPECIFICATIONS
3.1 800MHz Channelised BDA 60-056104 Parts Lists
02-011601 900MHz 8POLE 7.5MHz B/W SMA 4
05-002602 900MHz SPLITTER/COMBINER, 20W 4
05-003302 4 WAY SPLITTER GSM 900MHz 8
10-000701 1/4W0-30dB SWITCHED ATTENUATOR 4
11-005902 900MHz LOW NOISE AMP WITH RELAY ASS 3
11-006702 GA 800-1000MHz LNA 29dB (WITH RELAY) 2
12-002105 900MHz 10W PA 24V 2.8A (ALARMS) 2
12-002201 3 STAGE AMPLIFIER ALARM BOARD 2
12-002220 3 STAGE ALARM PCB COVER 2
12-002826 ALARM BOARD ACRYLIC LENS 2
13-003011 DC/DC CONVERTER 24-12V 8A PCB SUB-ASS 2
13-003020 DC-DC CONVTR 24-12V HEATSINK 2
17-000126 CELL ENHANCER LABEL 6 DIGIT 1
17-001522 BASE PLATE 560 x 345mm 17-001520&9020 1
17-002101 CHANNEL CONTROL MODULE 4
17-002103 26WAY RIBBON CABLE LEAD 0
17-003022 MODULE PATTERNED LEAVE 16
17-003023 SUBRACK SIDE PANEL 8
17-003024 SUBRACK REAR BRACKET 16
17-003025 BOTTOM MODULE GUIDE 16
17-003028 MODULE SQUARE LEAVE 16
17-003029 TOP MODULE GUIDE 16
17-009026 C/E 820 x 620 x 250(3 HEATSINKS)2.0 CASE 1
17-009127 CHAN MOD 810-860MHz 30KHz 8p TCXO 16
17-009723 EQUIP. MTG PLATE No.4 4
17-009725 EQUIP. MTG PLATE No.6 2
80-008902 24V RELAY PCB ASSEMBLY 1
80-032320 10W PA HEATSINK (NEEDS 17-000526) 2
80-032322 10W PSU HEATSINK (NEEDS 17-000526) 1
90-010021 RF CABLE SUPFLEX SMA R/A MALE 100mm 5
90-010022 RF CABLE SUPFLEX SMA R/A MALE 200mm 3
90-010026 RF CABLE HIFLEX SMA R/A MALE 150mm 4
90-010028 RF CABLE HIFLEX SMA R/A MALE 350mm 1
90-010029 RF CABLE HIFLEX SMA R/A MALE 450mm 1
90-010131 RF CABLE SMA R/A-N PANEL JACK 200mm 1
90-010135 RF CABLE SMA R/A-N PANEL JACK 500mm 1
91-500011 PWR 3POLE PNL PLUG SEALED IP68 2
91-500015 PWR CON CAP SEALED with INT. THREAD 2
91-500016 PWR 6POLE PNL PLUG SEALED IP68 1
91-510010 PWR 3POLE FREE SOC.SEALED IP68 1
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-12 of 52
91-510013 PWR CON CAP SEALED with Ext. THREAD 2
91-510014 PWR 6POLE FREE SOC.SEALED IP68 1
91-600014 'D' 9 WAY SOCKET S/B (NON FILTERED) 6
91-620002 'D' 25 WAY SOCKET/IDC TERMS 4
91-640003 MISC 26 WAY RIBBON CABLE SOCK. 4
91-700017 ICD 15 WAY 0.1' CONNECTOR 3
92-280033 Captive Screw 8
92-400017 GASKET FOR N TYPE CONNECTOR 3
93-540035 1K3 0.25W 1% RES MRS25 M:F 2
96-300011 24 V 400 W FLATPACK PWR SUPPLY 1
96-500003 AC FILTER 110V 5A 1
96-500005 DC INPUT FILTERS 1
96-700002 LED.GREEN 5mm SEALED IP66 1
96-700005 LED.RED 5mm SEALED IP66 1
96-900018 AC TRIP SWITCH (5 AMP M.C.B.) 1
96-920011 PROXIMITY SWITCH 1
96-920012 PROXIMITY SWITCH MAGNET 1
97-000002 BLACK MODULE CAGE RUNNER 8
97-300010 SUPPLY I/P COVERS 1
97-400010 BLACK PLASTIC HANDLE 37311 2
97-600001 SUBRACK FRONT HORIZ 2
97-600002 SUBRACK M2.5 STD TAP 8
97-900004 RUBBER FOOT FOR CELL ENHANCERS 4
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-13 of 52
3.2 Technical Specifications
3.2.5 800MHz 8 Channel Channelised BDA Technical Specification
Frequency Range: Downlink
857.0-861.0MHz
Uplink
812.0-816.0MHz
Band Width: Downlink: 25kHz
Uplink: 25kHz
No. of Paths: 2
No. of RF Ports: 2
No. of Fibre Connections: N/A
RF Connector: N type female
RF Impedance: 50Ω
VSWR: Better than 1.5:1
Downlink Gain: 95 dB min
Uplink Gain: 95 dB min
Gain Adjustment: 0 to 30 in 2dB steps
Downlink PA: 10W Class A Linear
Downlink Power: 8 Carriers at +17dBm
Uplink PA: 10W Class A Linear
Uplink Power: 8 Carriers at +17dBm
Duplexer UP/DN Isolation: >80 dB
Passband Ripple: <±1.5 dB
Noise Figure: Uplink <6 dB at maximum gain
Downlink <5 dB at maximum gain
In-Band Spurious: Better than –36dBm downlink
Better than –36dBm uplink
(measure with 30KHz BW with max gain setting)
MTBF: >50,000 hours
Supply Input Voltage: 110V AC
Alarms Fitted: Alarm: Volts free contacts (Amps, PSU,door)
Alarm indicator- Red LED
Power Indicator-Green LED
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-14 of 52
3.3 Mechanical Specification
3.3.1 800MHz BDA Wall Mount Case
height: 820 mm
width: 620 mm
Size:
depth: 250 mm
(excluding connectors, heatsinks, handles and feet)
Fixings: 4 holes on 700 mm (h) x 667 mm (w)
Weight: 50 kg (approx.)
operational: -20°C to +50°C
Temperature Range:
storage: -40°C to +70°C
Humidity: 10% to 95% non-condensing
Environmental Protection: IP65 (with door closed and all ports terminated)
Case: RAL 7032
Heatsinks: Black anodised
Finish:
Handles: Black (where fitted)
Supply Cable: Unit supplied with 3-pin IP68 connector for
customer interface with AC input.
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-15 of 52
4. SYSTEM DRAWINGS
4.1 Drg. Nō. 60-056194, 800MHz BDA Case Outline Drawing
250 [9.9"]
LOCKABLE
DOOR
CATCH
volt age
High
DANGER
H eavy
CAUTION
700 [2'-3.6"]
CE- / - N
P roduct r ef :
B P A 800MH z
Aerial Facilities
Li m i t ed
BYDAT EDESCRIPT IO NNo
ISSUE
12
3456789
A
B
C
D
E
F
1 23456789
A
B
C
D
E
F
Fax : 01494 777002
Fax : 01494 777000
Aerial Facilities Limited
THIS IS A PROPRIETARY DESIGN OF AERIAL FACILITIES L TD.
REPRO DUCTION O R USE O F THIS DESIG N BY O T HERS IS
PERMISSIBL E O NLY IF EXPRESSL Y AUT HO RISED IN WRITING
BY AERIAL FACILITIES LTD.
NO DECIM AL PL ACE ± 1 mm
O NE DECIM AL PL ACE ± 0 .3 mm
TWO DECIMAL PL ACES ± 0 .1 mm
AL L DIMENSIONS ARE IN mm
UNLESS OTHERWISE STATED
CHKD
DRAWN
APPD
DAT E
TOLERANCES SCAL E
England
CUSTO MER DRAWING .No
TITLE
3
A
PASADENA BLUE LINE. LOCATION 2.
BDA 800MHz. 8 CHANNEL OUTLINE DRAWING
60-056194
1A
1:8
MNR 01/07/03
P RODUCTI ON ISS UE
01/07/03
MNR
620 [2'-0.4"]
909 [2'-11.8"]
M6 EARTH STUD
115V AC INPUT
MATERIAL: MILD STEEL
FINISH: PAINTED TO RAL 9017
WALL FIXINGS: M8 (5/16")
RF CONNECTORS: N TYPE FEMALE
ENVIRONMENTAL CLASS.: IP65
SEMI-GLOSS TRAFFIC BLACK
667 [2'-2.3"]
700 [2'-3.6"]
PSU ALARM
TO ANTENNA
CONNECTION TO BDA
ALARMS
820 [2'-8.3"]
PB GD
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-16 of 52
4.2 800MHz Channelised PBL BDA System Diagram
LOCATION TWO
dB
dB
857-861MHz
812-815MHz
859.4375MHz
858.7625MHz
812.7625MHz
814.9375MHz
800MHz
dB
dB
857-860MHz
812-815MHz
12-002105
12-002105 11-00670211-005902
11-00590211-006702
30dB 30dB
30dB 30dB
20dB
20dB
20dB
20dB
20dB
-78dBm
17dBm
17dBm
-20dBm
-20dBm
T11
860.4375MHz
20dB
858.2375MHz
20dB
857.9375MHz
20dB
859.7625MHz
20dB
859.9375MHz
20dB
857.7625MHz
20dB
814.7625MHz
812.9375MHz
813.2375MHz
815.4375MHz
814.4375MHz
813.7625MHz
19dBm
-11dBm
-10dBm
-30dBm
-29dBm
-49dBm
-79dBm
-30dBm
11-005902
20dB
11-005902
20dB
19dBm-11dBm
-10dBm
-30dBm -30dBm
-29dBm
-49dBm
-79dBm -78dBm
20dB
20dB
20dB
20dB
20dB
20dB
20dB
60-056104
05-002602
05-003302
05-003302
05-002602
05-003302
05-002602
05-002602
05-003302
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-17 of 52
5. SUB-UNIT MODULES
5.1 Bandpass Filter (02-011601)
5.1.1 Description
The bandpass filters are multi-section designs with a bandwidth dependent upon the
passband frequencies, (both tuned to customer requirements). The response shape is
basically Chebyshev with a passband design ripple of 0.1dB. The filters are of combline
design, and are carefully aligned during manufacture in order to optimise the insertion loss,
VSWR and intermodulation characteristics of the unit. The tuned elements are silver-plated
to reduce surface ohmic losses and maintain a good VSWR figure and 50Ω load at the input
and output ports.
Being passive devices, the bandpass filters should have an extremely long operational life
and require no maintenance. Should a filter be suspect, it is usually most time efficient to
replace the module rather than attempt repair or re-tuning.
5.1.2 Technical Specification
PARAMETER SPECIFICATION
Response Type: Chebyshev
857-861MHz (Dlink)
Frequency Range: 812-816MHz (Ulink)
Bandwidth: <7.5 MHz (tuned to requirements)
Number of Sections: 8
Insertion Loss: 1.2 dB
VSWR: better than 1.2:1
Connectors: SMA
Power Handling: 100W max
operation: -10°C to +55°C
Temperature range storage: -40°C to +70°C
Weight: 3 kg (typical)
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-18 of 52
5.2 2-Way Splitter/Combiner (05-002602)
5.2.1 Description
The Splitter/Combiner used is a device for accurately matching two or more RF signals to
single or multiple ports; most usually within a specified frequency band, whilst maintaining
an accurate 50Ω load to all inputs/outputs and ensuring that the VSWR and insertion losses
are kept to a minimum. Any unused ports will be terminated with an appropriate 50Ω load.
5.2.2 Technical Specification
PARAMETER SPECIFICATION
Narrowband: 800-1000MHz
Frequency Range: Broadband: 600-1300MHz
Narrowband: 300 MHz
Bandwidth: Broadband: 700 MHz
Inputs: 1
Outputs: 2
Narrowband: >20 dB
Isolation: Broadband: >18 dB
Narrowband: 3.3 dB
Insertion Loss: Broadband: 3.5 dB
VSWR Input & Output: Better than 1.3:1
Impedance: 50 ς
Connectors: SMA female
Weight: 200gms
Size: 54 x 44 x 21mm (including
connectors)
Splitter: 20 Watts
Power Rating: Combiner: 0.5Watts
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-19 of 52
5.3 4-Way Splitter/Combiner (05-003302)
5.3.1 Description
The Splitter/Combiner used is a device for accurately matching two or more RF signals to
single or multiple ports, whilst maintaining an accurate 50Ω load to all inputs/outputs and
ensuring that the VSWR and insertion losses are kept to a minimum. Any unused ports
will be terminated with an appropriate 50Ω load. This splitter is used in conjunction with
the previously mentioned 05-002602 to split & combine the signal before and after the
channel selective modules (in both up & downlink paths).
5.3.2 Technical Specification
PARAMETER SPECIFICATION
Frequency range: 700-1000MHz
Bandwidth: >200MHz
Rejection: >14dB
Insertion loss: 6.5dB (typical)
Connectors: SMA
Weight: <1.5kg
operational
:
-10ΒC to +55ΒC
Temperature
range: storage -40ΒC to +70ΒC
5.4 ¼Watt 0- -30dB Switched Attenuator (10-000701)
5.4.1 General Application
In many practical applications for Cell Enhancers etc., the gain in each path is found to be
excessive. Therefore, provision is made within the unit for the setting of attenuation in
each path, to reduce the gain.
5.4.2 Switched Attenuators
The AFL switched attenuators are available in two different types; 0 – 30dB in 2 dB steps
(as in this case), or 0 – 15dB in 1 dB steps. The attenuation is simply set using the four
miniature toggle switches on the top of each unit. Each switch is clearly marked with the
attenuation it provides, and the total attenuation in line is the sum of the values switched
in. They are designed to maintain an accurate 50Ω impedance over their operating
frequency at both input and output.
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-20 of 52
5.5 Low Noise Amplifiers (11-005902 & 11-006702)
5.5.1 Description
The Gallium-Arsenide low noise amplifiers used in the unit are double stage, solid-state low
noise amplifiers. Class A circuitry is used throughout the units to ensure excellent linearity
and extremely low noise over a very wide dynamic range. The active devices are very
moderately rated to provide a long trouble-free working life. There are no adjustments on
these amplifiers, and in the unlikely event of a failure, then the complete amplifier should be
replaced. This amplifier features its own in-built alarm system which gives a volt-free relay
contact type alarm that is easily integrated into the main alarm system.
5.5.2 Technical Specification (11-005902)
PARAMETER SPECIFICATION
Frequency Range: 800 – 960MHz
Bandwidth: <170MHz
Gain: 19.5dB (typical)
1dB Compression Point: 21dBm
OIP3: 33dBm
Input/Output Return Loss: >20dB
Noise Figure: 1dB (typical)
Power Consumption: 190mA @ 24V DC
Supply Voltage: 10-24V DC
Connectors: SMA female
operational: -10°C to +55°C
Temperature Range: storage: -40°C to +70°C
Size: 90 x 55 x 30.2mm
Weight: 280gms (approximately)
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-21 of 52
5.5.3 Drg. Nō. 11-005902 LNA General Assembly Drawing
BYDAT EDES CRIPTIO NNo
ISSUE
1 23 456 78 9
A
B
C
D
E
F
1
2
3
4
5
6
7
8
9
F
E
D
A
B
C
Fax : 01494 777002
Tel : 01494 777000
Aerial Facilities Ltd
TWO DECIMAL PLACES ± 0 .1mm
ONE DECIMAL PL ACE ± 0 .3 mm
NO DECIMAL PL ACE ± 1 mm
BY AERIAL F ACIL IT IES L TD.
PERMISSIBLE ONLY IF EXPRESSL Y AUTHORISED IN WRITING
REPRODUCTION OR USE OF THIS DESIGN BY OTHERS IS
THIS IS A PROPRIETARY DESIGN OF AERIAL FACILITIES LTD.
DRAWN
CHKD
AL L DIM ENSIO NS ARE IN mm
UNL ESS O THERWISE STAT ED
APPD
DAT E
T O L ERANCES SCALE
England
CUSTO MER DRG .No
TITLE
A
3
900MHz LOW NOISE AMPLIFIER
WITH RELAY ASSEMBLY DRAWING
11-005902
AA
1.5:1
MNR 25/03/02
PRE-PRODUCTION ISSUE
25/03/02
MNR
R53
+
J5
R5 9
C5
RL1
R58
CO N1
Limited
Aerial Fa cilities
VOUT R55
R54
D3
VR1
IC4
R41
R42
k
C19
C16
J4
J2 J1
C10
C6
+
+
C4
REG 3
VIN
ABC
R39
+
ZD 3
C14
+
IC3
R38
R4 0
+
C17
+
+
C15
C8
R52
C13
IC2
C7
C11
+
+
C9 R47
R5 0
J3
+C12
R5 1
R48
R4 4R4 3
REG1
R46
COMPONENTS TO BE ADDED TO 11-003912,ITEM 15,DC PCB SUB-ASSEMBLY
5
21
2
22
2
424
2
IN 2 PLACES
25
4
3
327
17 24
2
826 30 27
2
20
2
1533
2
27
5
16 23
5
1
6
IN 2 PLACES
225
10
DC PCB
RF PCB
R4 9
11-005925 ISS.1
R2
R4
C2
L2
L4
C1 0
TR2
L6
R6
R1 2
R1 1
C4
R5
C1
R3
R1
L5
R1 0
R1 5
CPL 2
R1 3
R1 4
COMPONENTS TO BE ADDED TO 11-005911,ITEM 16,RF PCB SUB-ASSEMBLY
2. LIDS,ITEMS 2 & 3 AND LABELS,
1. SOLDER JOINTS TO BE MADE USING OR
2819
34
see note 2
LABEL DETAILS - SCALE 1:1
35
see note 2
see note 2
31
IN 4 PLACES
ITEMS 31,34 & 35,TO BE FITTED ON TEST
AFL
********
11-005902
800-1000MHz
20dB 12-24vDC
**/**/20**
Limited
Aerial Facilities
IN
REF.
FREQ.
GAIN
S/N
DATE
0086
OUT
AFL
SENSITIVE
DEVICES
E LE C TR O S TA TI C
OBSERVE PRECAUTIONS
ATTENTION
FOR HANDLING
AFL
PRODUCTION ISSUE(ECN2539) MNR
08/04/02
1A
AC IB
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-22 of 52
5.5.4 Drg. Nō. 11-005970, LNA Circuit Diagram (RF)
900MHz LOW NOISE AMPLIFIER (RF)
CIRCUIT DIAGRAM
11-005970
AA
N.T.S
MNR 21/03/02
C8
TR2
R8
C4
C6
R12
R6
C2
R3 R4
C10
TR1
R11
C3
C7
C5
R7
R1 R2
R5
C9
C1
R9
R10
R13
R14 R15
C12
C11
BYDAT EDES CRIP TIO NNo
ISSUE
1 23456789
A
B
C
D
E
F
123
456
789
A
B
C
D
E
F
Fax : 01494 777002
Tel : 01494 777000
Aerial Facilities Limited
THIS IS A PRO PRIET ARY DESIG N O F AERIAL FACIL IT IES L TD.
REP RO DUCT IO N O R USE O F THIS DESIG N BY O THERS IS
PERMISSIBLE O NLY IF EXPRESSLY AUTHORISED IN WRITING
BY AERIAL FACILITIES LTD.
NO DECIM AL PL ACE ± 1 mm
ONE DECIMAL PL ACE ± 0 .3mm
TWO DECIMAL PL ACES ± 0 .1 mm
AL L DIMENSIO NS ARE IN m m
UNLESS O THERWISE STATED
CHKD
DRAWN
APPD
DATE
T O L ERANCES SCALE
England
CUST O MER DRAWING.No
TITLE
3
A
SG
D
S
G
D
CPL 1 CPL 2
-ve2
+ve2
-ve1
+ve1
RF IN
RF OUT
51R
51R
0R0(NOMI)
220pF
100pF
100pF
L2
L4
82nH
150R
10K
22R 22R
150R
12nH
L6
4.7pF
220pF
82nH
L3
L1
150R
10uF
100pF
10uF
10K
12nH
L5
4.7pF
150R
100pF
22R22R
PRE-PRODUCTION ISSUE
21/03/02
MNR
1.0pF
1.0pF
+
+
SAT
SAT SAT
1D1304-3 1D1304-3
FSU02LG
FSU02LG
PRODUCTION ISSUE(ECN2539) MNR
08/04/02
1A
AC IB
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-23 of 52
5.5.5 Drg. Nō. 11-005971, LNA Circuit Diagram (DC Wiring Layout)
900MHz LOW NOISE AMPLIFIER
SCHEMATIC DIAGRAM
11-005971
AA
-
MNR 26/03/02
BYDAT EDES CRIP TIO NNo
ISSUE
1 23456789
A
B
C
D
E
F
123
456
789
A
B
C
D
E
F
Fax : 01494 777002
Tel : 01494 777000
Aerial Facilities Limited
THIS IS A PRO PRIET ARY DESIG N O F AERIAL FACIL IT IES L TD.
REP RO DUCT IO N O R USE O F THIS DESIG N BY O THERS IS
PERMISSIBLE O NLY IF EXPRESSLY AUTHORISED IN WRITING
BY AERIAL FACILITIES LTD.
NO DECIM AL PL ACE ± 1 mm
ONE DECIMAL PL ACE ± 0 .3mm
TWO DECIMAL PL ACES ± 0 .1 mm
AL L DIMENSIO NS ARE IN m m
UNLESS O THERWISE STATED
CHKD
DRAWN
APPD
DATE
T O L ERANCES SCALE
England
CUST O MER DRAWING.No
TITLE
3
A
LM7808CT
REG 3
G
IO
+ve1 (6.75v @ 64mA)
-ve1
-ve2
J4 1
J5
J4
10-24V DC I/P
GROUND
2
1
7
TTL VOLTAGE SET
8
TTL ALARM/0v GOOD
9
OC GOOD/0v BAD
9 WAY 'D'
PIN OUTS
CO N1
J4 2
J5 1
J5 2
DC INPUT DC O UT PUT
RF PCB
FOR CIRCUIT DIAGRAM
SEE 11-005970
SEE 11-003971
FOR CIRCUIT DIAGRAM
DC PCB
PRE-PRODUCTION ISSUE
26/03/02
MNR
+8V C
BA
7 CON1
8 CON1
9 CON1
2 CON1
RF
IN
RF
OUT
+ve2 (6.75v @ 64mA)
REL AY CO NT ACT G O O D *
REL AY CO M MO N *
REL AY CO NTACT BAD *
5 CON1
4 CON1
3 CON1
5
4
3
6
* ONLY APPLIES TO 11-005902 AMPLIFIER
PRODUCTION ISSUE(ECN2539) MNR
08/04/02
1A
AC IB
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-24 of 52
5.5.6 Technical Specification (11-006702)
PARAMETER SPECIFICATION
Frequency Range: 800 – 1000MHz
Bandwidth: <200MHz
Gain: 29dB (typical)
1dB Compression Point: 20dBm
OIP3: 33dBm
Input/Output Return Loss: >18dB
Noise Figure: 1.3dB (typical)
Power Consumption: 180mA @ 24V DC
Supply Voltage: 10-24V DC
Connectors: SMA female
operational: -10°C to +55°C
Temperature Range: storage: -40°C to +70°C
Size: 90 x 55 x 30.2mm
Weight: 290gms (approximately)
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-25 of 52
5.5.7 Drg. Nō. 11-006702, LNA General Assembly Drawing
800-1000MHz LOW NOISE AMP. (RELAY)
(RF AND DC) 29dB GAIN. GENERAL ASSY
11-006702
AA
1.5:1
DBS 25/03/02
19 28
22
2
21
2
26
5
24
2
1
17 33
2
8 3
327
1530 27
2
20
2
6
IN 4 PLACES
25
4
see note 2
25
10
see note 2
31
IN 4 PLACES
2
34
see note 3
24
2
IN 2 PLACES
4
27
5
16 23
5
BYDAT EDES CRIPTIO NNo
ISSUE
1 23 456 78 9
A
B
C
D
E
F
1
2
3
4
5
6
7
8
9
F
E
D
A
B
C
Fax : 01494 777002
Tel : 01494 777000
Aerial Facilities Ltd
TWO DECIMAL PLACES ± 0 .1mm
ONE DECIMAL PL ACE ± 0 .3 mm
NO DECIMAL PL ACE ± 1 mm
BY AERIAL F ACIL IT IES L TD.
PERMISSIBLE ONLY IF EXPRESSL Y AUTHORISED IN WRITING
REPRODUCTION OR USE OF THIS DESIGN BY OTHERS IS
THIS IS A PROPRIETARY DESIGN OF AERIAL FACILITIES LTD.
DRAWN
CHKD
AL L DIM ENSIO NS ARE IN mm
UNL ESS O THERWISE STAT ED
APPD
DAT E
T O L ERANCES SCALE
England
CUSTO MER DRG .No
TITLE
A
3
PROTOTYPE ISSUE
19/2/02
DBS
1. SOLDER JOINTS TO BE MADE USING OR
2. LIDS,ITEMS 2 & 3 AND WARRANTY LABELS,ITEM 31,TO BE FITTED ON TEST
3. LABEL,ITEM 34,TO BE FITTED ON TEST.FOR LAYOUT SEE DRAWING 11-006790
COMPONENTS TO BE ADDED TO 11-003912,ITEM 15,DC PCB SUB-ASSEMBLY
AFL
O/P
CO N1
RL 1
REG 3
ACB
R4 0
I/P
J4J5
R4 3 R4 4
R5 1 R5 0
AFL
DC PCB RF PCB
COMPONENTS TO BE ADDED TO 11-006711,ITEM 16,RF PCB SUB-ASSEMBLY
see note 2
R6
C9
I/P
R1
Issue B
C5
R4
C2 R3
L1 C4
R5
TR2
L2
-Ve2
C1 0
R7
+V e2
R8
C7
C6
L3
R9
C1 1
CO N2
OUTPUT
R12
R10
R11
11-006725
-Ve1 +V e1
AFL
O/P
0R0 0.1W 2% 0805 CHIP RESISTOR93-630079
Select on test
Select on test
DESCRIPTIO NDRG No.
R11 on 11-006711
CIRCUIT REF
6
ITEM No.
R1 01
1
2
R1 2
QTY
ICD 2 WAY 0.1" PITCH JUMPER HEADER
COMPONENTS TO BE ADDED TO 11-006711,ITEM 16,RF PCB SUB-ASSEMBLY
COMPONENTS TO BE ADDED TO 11-003912,ITEM 15,DC PCB SUB-ASSEMBLY
94-300018
93-630135
93-630018
93-630016
91-700072
93-630015
LM7808CT 8V VOLTAGE REGULATOR
56R 0.125W 2% RESISTOR CHIP
0R0 0.5W 1% 2010 RESISTOR CHIP
DESCRIPTIO N
33R 0.125W 2% RESISTOR CHIP
39R 0.125W 2% RESISTOR CHIP
DRG No.
REG3 on 11-003912
R40 on 11-003912
R50/51 on 11-003912
12
8
11
1
1
2
J4 /J5
R44 on 11-003912
CIRCUIT REF
R43 on 11-003912
6
10
9
ITEM No.
2
1
1
QTY
96-910009 5V DPDT SMD G6H-2F LOW PROFILE 35 1 RL1 on 11-003912
4.7KR 0.125W 2% RESISTOR CHIP93-630049 36 1 R59 on 11-003912
R5 9
AC IB
MINOR CHANGE DBS
26/3/02
AB
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-26 of 52
5.5.8 Drg. Nō. 11-006770, LNA Circuit Diagram (RF Components)
800-1000MHz LOW NOISE AMP. 29dB
(RF) PCB CIRCUIT DIAGRAM
11-006770
AA
-
DBS 18/2/02
C1
C6
C3 C2
C9
C8
C4
C1 1
C1 0 C7C5
BYDAT EDES CRIP TIO NNo
ISSUE
1 23456789
A
B
C
D
E
F
123
456
789
A
B
C
D
E
F
Fax : 01494 777002
Tel : 01494 777000
Aerial Facilities Limited
THIS IS A PRO PRIET ARY DESIG N O F AERIAL FACIL IT IES L TD.
REP RO DUCT IO N O R USE O F THIS DESIG N BY O THERS IS
PERMISSIBLE O NLY IF EXPRESSLY AUTHORISED IN WRITING
BY AERIAL FACILITIES LTD.
NO DECIM AL PL ACE ± 1 mm
ONE DECIMAL PL ACE ± 0 .3mm
TWO DECIMAL PL ACES ± 0 .1 mm
AL L DIMENSIO NS ARE IN m m
UNLESS O THERWISE STATED
CHKD
DRAWN
APPD
DATE
T O L ERANCES SCALE
England
CUST O MER DRAWING.No
TITLE
3
A
CONNECTIONS TO DC BOARD
-Ve1 +Ve1
-Ve2 +Ve2
RF INPUT
RF OUTPUT
R1 1
R1 0 R1 2
R8 R9
R4 R5
R3
R6 R7
R1 R2
10nF 100pF
910R 470R
100pF ATF-33143
100pF
10R
15pF
82nH
100pF 10nF
430R 1K2
CL Y2
82nH
100pF
6n8H
1.8pF
220pF
180R 180R 18R 22R
SELECT VALUES ON TEST
REFER TO CIRCUIT COMPONENT LIST FOR FURTHER INFORMATION
PROTOTYPE ISSUE
18/2/02
DBS
100pF
L3
L2
L1
G S
D
TR1
G S
D
TR2
PRODUCTION ISSUE(ECN2538) MNR
11/07/02
1A
AC IB
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-27 of 52
5.5.9 Drg. Nō. 11-006771, LNA DC Wiring Diagram
BYDAT EDES CRIP TIO NNo
ISSUE
1 23456789
A
B
C
D
E
F
123
456
789
A
B
C
D
E
F
Fax : 01494 777002
Tel : 01494 777000
Aerial Facilities Limited
THIS IS A PROPRIETARY DESIGN OF AERIAL FACILITIES LTD.
REP RO DUCT IO N O R USE O F THIS DESIG N BY O T HERS IS
PERMISSIBLE ONLY IF EXPRESSL Y AUTHORISED IN WRITING
BY AERIAL FACILITIES L TD.
NO DECIMAL PL ACE ± 1 m m
ONE DECIMAL PL ACE ± 0 .3 mm
TWO DECIMAL PL ACES ± 0 .1 mm
AL L DIM ENSIO NS ARE IN mm
UNLESS OTHERWISE STATED
CHKD
DRAWN
APPD
DATE
T O L ERANCES SCALE
England
CUST O MER DRAWING.No
TITLE
3
A
800-1000MHz LOW NOISE AMPLIFIER 29dB
(RF AND DC) SCHEMATIC DIAGRAM
11-006771
AA
-
DBS 19/2/02
LM7808CT
REG 3
G
IO
+ve1 (6.75v @ 45mA)
-ve1
-ve2
J4 1
J5
J4
10-24V DC I/P
GROUND
2
1
7
TTL VO L TAGE SET
8
TTL AL ARM/0v GOOD
9
OC GOOD/0v BAD
9 WAY 'D'
PIN O UTS
CO N1
J4 2
J5 1
J5 2
DC INPUT DC O UT PUT
RF PCB
FOR CIRCUIT DIAGRAM
SEE 11-006770
SEE 11-003971
FOR CIRCUIT DIAGRAM
DC PCB
PROTOTYPE ISSUE
19/2/02
DBS
+8V C
BA
7 CON1
8 CON1
9 CON1
2 CON1
RF
IN
RF
OUT
+ve2 (6.75v @ 70mA)
REL AY CO NTACT GO O D
REL AY CO M MO N
RELAY CONTACT BAD
5 CON1
4 CON1
3 CON1
5
4
3
6
*
*
*
= ONLY APPLIES TO 11-006702
*
AC IB
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-28 of 52
5.6 10Watt Power Amplifier (12-002105)
5.6.1 Description
The power amplifiers fitted to this unit (up & downlink paths) are multi-stage, solid state
power amplifiers. Class A circuitry is employed throughout the device to ensure excellent
linearity over a wide dynamic frequency range. All the semi-conductor devices are very
conservatively rated to ensure low device junction temperatures and a long, trouble free
working lifetime.
The power amplifiers should require no maintenance over their operating life. Under no
circumstances should the cover be removed or the side adjustments disturbed unless it is
certain that the amplifier has failed; since it is critically aligned during manufacture and
any re-alignment will require extensive test equipment.
5.6.2 Technical Specification
PARAMETER SPECIFICATION
Frequency range: 800 - 970MHz (tuned to spec.)
Bandwidth: 10 - 100MHz (typical, tuned to
spec.)
Maximum RF output: >10.0 Watt
Gain: 30dB
1dB compression point: +40dBm
3rd order intercept point: +50dBm
VSWR: better than 1.5:1
Connectors: SMA female
Supply: 2.8A @ 24V DC
operational: -10°C to +55°C
Temperature range: storage: -40°C to +70°C
Weight: 1.5 Kg (case only)
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-29 of 52
5.6.3 Drg. Nō. 12-002105, 10W PA Assembly Drawing
POWER AMPLIFIER,10W,900MHz,2.8A,24V,
ASSEMBLY WITH ALARMS.
12-002105 1C
1:1
DBS 30/06/93
20
7
16
28
14 17
2
13
1
8
18
16
3
4
18
2
21
2
17
2
26
17
16
21
16
12 21
2
23
23
519 22
25
10
302710
DAT EDES CRIPT IO NNo
ISSUE
THIRD ANG LE PROJECTION
DRAWN DATE
CHKD APPD
AL L DIME NSIO NS ARE IN mm
UNL ESS OTHERWISE STATED
THIS IS A PRO PRIET ARY DESIGN OF AERIAL FACILITIES L TD.
REPRO DUCTIO N OR USE O F T HIS DESIG N BY O T HERS IS
PERMISSIBLE O NL Y IF EXPRESSLY AUTHORISED IN WRITING
BY AERIAL FACIL ITIES LT D.
T O L ERANCE S
NO DECIM AL PL ACE ± 1 mm
ONE DECIMAL PL ACE ± 0.3m m
TWO DECIMAL PLACES ± 0.1 mm
SCALE
TITLE
CUSTO MER DRG.No ISS
Aerial Facilities Ltd
England
Little Chalfont(0494)763636
Fax (0494)764838
2
A
Aerial Facilities Ltd
+
+
+
C4
C1
L1
C2 R1
C3
C8
C5 +
L2
TR 1 L3
C11
REG1
C10
C18
C9
R2 C14
L4
TR 2
C15
REG2
C19
L5
+
+
C7
C12
R3
C13
+C16 + C23
C17 C22
C28
C21
L6
C20C24
TR 3
D1
REG3
C29
+
C26C25
+
R4
+
PLAN VIEW WITH LID REMOVED
NOTES:
1. COMPLETE ALL SOLDERING USING ITEM
1
4
IN 2 POSNS
IN 3 POSNS
SEE DETAIL
FIT WITH CHAMFER
FACING THIS WAY: - - > FACING THIS WAY: - - >
FIT WITH CHAMFER
FACING THIS WAY: - - >
FIT WITH CHAMFER
CROP TABS AS SHO WN
15.00 ==
(ITEM 14)
IN 4 PO SNS
1 PRO DUCT IO N ISSUE 2 /7 /9 3 DBS
PIN 3 NOT USED
SOL DER PIN 1 TO TRACK
( HIG HL IG HT ED) ROUT E CL EAR
O F PIN 2 WIRE & D1 " K"
SOL DER PIN 2 TO EARTH.
ROUTE CLEAR OF DIODE LEGS.
K A
2. REFER TO 12-002190 FOR LABELING INFORMATION.
( HEATSINK NO T SHOWN)
( HEATSINK NO T SHOWN)
3. ASSEMBL E ITEMS 3 & 5 TOGETHER USING A THIN FIL M OF ITEM
1A PRO DUCT IO N ISSUE ( CR0962)
23/ 12/ 98
SEW
1B 9/6/99 RS
(CR0962)
CO NNECT AS SHO WN
SO L DER TO D1 " K" T RACK
1C CR1676 12/4/00 DJL
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-30 of 52
5.6.4 Drg. Nō. 12-001275, 10W PA Circuit Diagram
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-31 of 52
5.6.5 Drg. Nō. 12-002175C12, PA Parts List(1)
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-32 of 52
5.6.6 Drg. Nō. 12-002175C2, PA Parts List(2)
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-33 of 52
5.6.7 Drg. Nō. 80-008450, PA Alarm Wiring Details
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-34 of 52
5.7 3 Stage Alarm Board (12-002201)
5.7.1 Description
Amplifier Alarm Boards are fitted to monitor the bias conditions of AFL Class A
amplifiers which remain constant in normal operation. Any departure from normal bias
conditions is a result of device failure, excess temperature, over-driving or oscillation
(excessive power).
In normal operation, the Class A bias circuit of the amplifier develops a constant voltage
of 1.20V across the collector current setting resistor. The Amplifier Alarm Board is a
window comparator device, which is adjusted to sense a departure from this condition.
Several different alarm outputs are provided to simplify interfacing, (Relay Contact, Open
Collector, and TTL Logic Levels)
The basic version of the Alarm Board (12-002801) monitors a single amplifier stage. A
three-stage version (12-002201) is used on complex amplifiers where three separate
comparators have their outputs logically combined to a common output stage. Failure of
any one stage will activate the alarms.
Note that the alarm board has a green Light Emitting Diode located near to the centre of
the printed circuit board, which is illuminated on ‘Good’, and extinguished on ‘Alarm’. It
is therefore a simple matter to identify an active module failure, by searching for an
Alarm Board which has its green LED extinguished. A simple test of the alarm board is
possible by shorting across the monitor inputs, pins 1 and 2, 3 and 4 or across pins 5 and
6. This last monitor input is inactive if the board has been converted to a two way alarm
board. (Refer to relevant amplifier alarm wiring diagram.)
1) Volt-free change over relay contacts.
2) Open collector NPN transistor pulls low on alarm.
3) TTL driver.
The use of precision voltage sources and resistors has eliminated the need for initial
adjustment or calibration, and the board will function correctly with a wide variation in
power supply voltage (8 to 30 volts, nominal supply is 12 or 24Volts).
There are two selectable link options on the three-way board:
LINK1 - Removed to convert to two-way alarm board.
LINK2 - Removed to isolate 0V from chassis earth.
The one way alarm board only has the 0V isolation link (LINK2) fitted.
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-35 of 52
5.7.2 Technical Specification
PARAMETER SPECIFICATION
Operating voltage: 8 to 30V (floating earth)
Alarm Threshold: Vcc - 1.20 volt +15%
Alarm output relay contacts:
Max. switch current: 1.0Amp
Max. switch volts: 120Vdc/60VA
Max. switch power: 24W/60VA
Min. switch load: 10.0µA/10.0mV
Relay isolation: 1.5kV
Mechanical life: >2x107 operations
Relay approval: BT type 56
Connector details: 15-way 0.1" pitch
operational: -10°C to +55°C
Temperature range: storage: -30°C to +70°C
74 x 56mm (3 stage)
PCB Size: 54 x 56mm (1 stage)
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-36 of 52
5.7.3 Drg. Nō. 12-002201, 3 Stage Alarm Board Assembly Drawing & Parts List
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-37 of 52
5.7.4 Drg. Nō. 12-002270, 3 Stage Alarm Board Circuit Diagram
3 STAGE AMPLIFIER ALARM BO ARD
CIRCUIT DIAG RAM
12-002270
1
N.T .S
M R B 11/ 8/ 93
BYDATEDESCRIP TIONNo
ISSUE
1234 5 678 9
10 11 12 13 14 15 16 17 18
A
B
C
D
E
F
G
H
I
J
K
L
M
A
B
C
D
E
F
G
H
I
J
K
L
1 2 3 4 5 6 7 8 9 101112 13 1415 16
17 18
M
UNLESS OTHERWISE STATED
ALL DIMENSIONS ARE IN mm
DRAWN
CHKD
CUSTOMER DRA WING No
PERMISSIBLE ONLY IF EXPRESSLY AUTHORISED IN WRITING
THIS IS A PROPRIETARY DESIGN OF AERIAL FACILITIES LTD.
NO DECIMAL PLACE ± 1mm
TWO DECIMAL PLACES ± 0.1mm
ONE DECIMAL PLACE ± 0. 3mm
BY AERIAL FACILITIES LTD.
REPRODUCTION OR USE OF THIS DESIGN BY OTHERS IS
APPD
DATE
TOLE RANCES SCA LE
Tel : 01494 777000
Fax : 01494 777002
Ae ria l Fa cilitie s L imite d
England
TI TLE
1
A
+
-
IC1
+
-
IC1
+
-
IC1
+
-
IC1
CONN11
TTL ALARM
CONN
+5v TTL I N
12
CONN
0V
15
CONN
ALARM 0v
14
CONN
O/C ALARM
13
7
+8v TO +30v
CONN
1CONN
CONN2
CONN3
CONN4
CONN5
CONN6
MONITOR 1
INPUT
HI LOW HI
MONITOR 2
INPUT
LO W HI
MON I TOR 3
INPUT
LO W
9CONN
CONN10
CONN8
CONTACTS
ALARM
R1
1K 8
+
-
IC3
5
6
7
R2
120R
R3
120R
R4
3K 6
R6
100K
R5
100K
R7
100K
R9
1K
2
3
1
+
-
IC3
4
11
R11
1K
100K
R15
1K
R17
100K
R23
100K
R22
1K
R19
100K
R14
100K
R13
100K
R21
R25
1K
R27
1K
R37
2K 4
R39
560R
R26
270K
270K
R18
R24
100K
R28
270K
R20
270K
R16
100K
R10
270K
R8
100K
R12
270K
R42
4K 7
R29
4K 7
R35
1K
R40
2K 2
R41
22K
R38
1K
R36
3K
2K 2
R30
4K 7
R32
4K 7
R34
10K
R33
10K
R31
TR 3
BCW71BCW71
TR 2
BCW71
TR 1
6
5
7
+
-
IC2
10
9
8
+
-
IC3
3
2
4
11
1
12
13
14
+
-
IC3
+
-
IC2
12
13
14
10
9
8
3
2
4
1
11
+
-
IC2
+
-
IC2
5
6
7
10
9
8
12
13
14
D1
1. 23v
SR12D
+
C1
1uF
C2
100n
1u
C7
100n
C3
100n
C4
1. 0
C8
3v3
D9
TR 6
FZT7 51
TR 4
BCW71 BCW71
TR 4
100n
C6
LK 2
D7
D6
LK 1
D4
D5
D2
D3
D8
LE D 1
REL
-
RL1
+
OP AMP
6
7
RL1/2
8
+7. 5v
+7. 5v
2
+7. 5v +7. 5 v
VCC VCC
0v 0v
C R 0508 14/ 1/ 94 M R B
IC1 , IC2 & IC3 = LM324AM
ALL DIODES = LL4148 UNLESS MARKED OTHERWISE
4
RL2/ 2 3
2
NOT USED
VCC
PRODUCTION ISSUE 11/9/93 MRB
PRODUCTION ISSUE 29/8/00 MNR
2
2A
0v
RB RB
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-38 of 52
5.7.5 Generic Wall Enclosure Alarm Wiring Sketch
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-39 of 52
5.8 DC/DC Converter, 24V in, 12V 8A out (13-003011)
5.8.1 Description
The DC/DC converter fitted is an AFL assembled, high power PCB unit with an 8 amp @
12V output capability. The circuit is basically an O.E.M semiconductor regulator (one side
of which has a heatsink mounting plate, that is usually bolted to the casing/back panel of a
Cell Enhancer) and smoothing components built onto a printed circuit board with screw
block terminations.
Note: no circuit diagram of the O.E.M. regulator is available. This unit should not be
repaired, only replaced.
5.8.2 Technical Specification
PARAMETER SPECIFICATION
Input Voltage Range: 18-28V DC
Output Voltage: 12V±0.5V
Max. Current Load: 8.0Amps
operation: -10°C to +55°CTemperature
Range: storage: -30°C to +70°C
Size(PCB): 190 x 63mm
Weight (Loaded PCB): 291gm
5.8.3 Photo of Regulator PCB (regulator heatsink side)
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-40 of 52
5.9 Channel Control & Channel Selective Modules (17-002101 & 17-009127)
5.9.1 Channel Selective Module Description
The channel selectivity module is employed when the Cell Enhancer requirement dictates
that very narrow bandwidths (single operating channels), must be selected from within the
operating passband. One channel selectivity module is required for each channel.
The Channel Selectivity Module is an Up/Down frequency converter that mixes the incoming
channel frequency with a synthesised local oscillator, so that it is down-converted to an
Intermediate Frequency (IF) in the upper HF range. An eight pole crystal filter in the IF
amplifier provides the required selectivity to define the operating passband of the Cell
Enhancer to a single PMR channel. The same local oscillator then converts the selected IF
signal back to the channel frequency.
Selectivity is obtained from a fixed bandwidth block filter operating at an intermediate
frequency (IF) in the low VHF range. This filter may be internal to the channel selectivity
module (Crystal or SAW filter) or an externally mounted bandpass filter, (LC or Helical
Resonator). Various IF bandwidths can therefore be accommodated. A synthesized Local
Oscillator is employed in conjunction with high performance frequency mixers, to translate
between the signal frequency and IF.
The operating frequency of each channel selectivity module is set by the programming of
channel selectivity module frequencies and is achieved digitally, via hard wired links, banks
of DIP switches, or via an onboard RS232 control module, providing the ability to remotely
set channel frequencies.
Automatic Level Control (ALC) is provided within each channel selectivity module such that
the output level is held constant for high level input signals. This feature prevents saturation
of the output mixer and of the associated amplifiers.
Alarms within the module inhibit the channel if the synthesised frequency is not locked. The
synthesiser will not usually go out of lock unless a frequency far out of band is programmed.
The channel selectivity module is extremely complex and, with the exception of channel
frequency programming within the design bandwidth, it cannot be adjusted or repaired
without extensive laboratory facilities and the necessary specialised personnel. If a fault is
suspected with any channel selectivity module it should be tested by substitution and the
complete, suspect module should then be returned to AFL for investigation.
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-41 of 52
5.9.2 Drg. Nō. 17-003080, Generic Channel Module Block Diagram
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-42 of 52
5.9.3 Channel Control Module Description
The control module consists of a bank of four, in-line data switches each of which control
one channel module frequency setting. One controller unit can therefore control four
channel modules. The following list shows the frequencies available for each switch
setting.
5.9.4 Channel Controller Frequencies
IDC PIN 25-way Connector Function
1 13 Freq. bit 1 (12.5kHz)
2 25 Freq. bit 2 (25kHz)
3 12 Freq. bit 3 (50kHz)
4 24 Freq. bit 4 (100kHz)
5 11 Freq. bit 5 (200kHz)
6 23 Freq. bit 6 (400kHz)
7 10 Freq. bit 7 (800kHz)
8 22 Freq. bit 8 (1.6MHz)
9 9 Freq. bit 9 (3.2MHz)
10 21 Freq. bit 10 (6.4MHz)
11 8 Freq. bit 11 (12.8MHz)
12 20 Freq. bit 12 (25.6MHz)
13 7 Freq. bit 13 (51.2MHz)
14 19 Freq. bit 14 (102.4MHz)
15 6 Freq. bit 15 (204.8MHz)
16 18 Freq. bit 16 (409.6MHz)
17 5 Module alarm
18 17 Gain bit 1
19 4 Gain bit 2
20 16 Gain bit 3
21 3 Gain bit 4
22 15 +5V
23 2 0V
24 14 Switched 12V
25 1 0V
26 --- ---
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-43 of 52
5.9.5 Channel Frequency Control Switch Table
Downlink
Frequencies
(MHz)
DIP Switch Setting Uplink
Frequencies
(MHz)
DIP Switch Setting
857.7625 1,2,3,4,6,8,10,16 812.7625 2,3,5,7,10,16
859.9375 2,3,9,10,16 814.9375 1,3,4,6,8,10,16
859.7625 1,2,3,4,5,6,7,810,16 814.7625 2,3,6,8,10,16
857.9375 2,3,5,6,8,10,16 812.9375 1,3,4,5,7,10,16
858.2375 2,7,8,10,16 8132375 1,4,6,7,10,16
860.4375 2,4,5,9,10,16 815.4375 1,7,8,10,16
859.4375 2,5,6,7,8,10,16 814.4375 1,4,5,8,10,16
858.7625 1,2,3,5,78,10,16 813.7625 2,3,4,5,6,7,10,16
5.10 24V Single Relay Board (80-008902)
5.10.1 Description
The General Purpose Relay Board allows the inversion of signals and the isolation of
circuits. It is equipped with a single dual pole change-over relay RL1, with completely
isolated wiring, accessed via a 15 way in-line connector.
The relay is provided with polarity protection diodes and diodes for suppressing the
transients caused by "flywheel effect" which can destroy switching transistors or induce
spikes on neighbouring circuits. It’s common use is to amalgamate all the alarm signals
into one, volts-free relay contact pair for the main alarm system.
Note that the board is available for different voltages (12 or 24V) depending on the type
of relay fitted at RL1.
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-44 of 52
5.11 24V 400W Flat-Pack Power Supply (96-300011)
5.11.1 Description
The power supply unit is a switched-mode type capable of supplying 24V DC at 16.0Amps
continuously. Equipment of this type typically requires approximately 10.0 Amps at 24V
DC, so the PSU will be used conservatively ensuring a long operational lifetime.
No routine maintenance of the PSU is required. If a fault is suspected, then the output
voltage from the power supply may be measured on its output terminals. This is typically set
to 24.5V.
All the PSU’s used in AFL Cell Enhancers are capable of operation from either 110 or 220V
nominal AC supplies. The line voltage is sensed automatically, so no adjustment or link
setting is needed by the operator. No drawings of the PSU are available.
5.11.2 Technical Specification
AC Input Supply:
Voltage: 110 or 220V nominal - 90 to 132 or 180 to
264V (single phase, absolute limits)
Frequency: 47 to 63Hz
DC Output Supply:
Voltage: 24V DC (nominal), 22 to 26V
(absolute limits)
Current: 16.0A
operational: -10ΒC to +55ΒC
Temperature
range: storage: -40ΒC to +70ΒC
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-45 of 52
6. INSTALLATION
6.1 Initial Installation Record
When this equipment is initially commissioned, please use the equipment set-up record sheet
in Appendix A. This will help both the installation personnel and AFL should these figures
be needed for future reference or diagnosis.
6.2 General
The size and weight of the wall unit means that it represent a significant health hazard unless
it is mechanically installed in the correct manner. In the interests of safety this should be
done before any electrical or RF connections are made.
It is important in determining the location of the wall units that space is allowed for access
to the front and underneath of the equipment. To enable maintenance to be carried out, the
door must be able to fully open. The location must be served with a duct to allow the entry
of cables into the unit.
6.3 Electrical Connections
The mains power supply and the alarms are connected through an IP65 connector which
should need no further attention once connected. It is recommended that the AC power
connection is approved by a qualified electrician, who must satisfy himself that the supply
will be the correct voltage and of sufficient capacity.
All electrical and RF connection should be completed and checked prior to power being
applied for the first time.
6.4 RF Connections
All RF connections are made to the cable termination, located on the right-hand side of the
wall enclosure. Care must be taken to ensure that the correct connections are made with
particular attention made to the base station TX/RX ports. In the event that the base
transmitter is connected to the RX output of the unit, damage to the equipment may be done
if the base station transmitter is then keyed. If the environment where the equipment is
installed is deemed to be ‘wet’ i.e. water seepage through roofs or walls, then suitable
methods to seal the RF N type connectors should be used, for example self amalgamating
sealant tape.
Ensure that connections are kept clean and are fully tightened.
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-46 of 52
6.5 Commissioning
Once all connections are made the equipment is ready for commissioning.
To commission the system the test equipment detailed in section 7.2 will be required.
Using the system diagrams and the end-to-end test specification, the equipment should be
tested to ensure correct operation. Typical RF levels that are not listed in the end-to-end
specification, such as input levels are detailed in the whole system diagram in section 4.
On initial power up the system alarm indicators on the door of the equipment should be
checked. A red LED illuminated indicates a fault and that particular module must be
investigated before proceeding with the commissioning. A green LED illuminates, to
indicate that the power supply is connected and valid.
In the event that any part of the system does not function correctly as expected, check all
connections to ensure that they are to the correct port, that the interconnecting cables are not
faulty and that they are tightened. The majority of commissioning difficulties arise from
problems with the interconnecting cables and connectors.
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-47 of 52
7. MAINTENANCE
7.1 General Procedures
7.1.1 Fault Finding
In the event that the performance of the system is suspect, a methodical and logical approach
to the problem will reveal the cause of the difficulty. The System consists of modules within
a wall mounted, environmentally protected enclosure.
Transmissions from the main base stations are passed though the system to the mobile radio
equipment; this could be a handheld walkie-talkie, mobile telephone or a transceiver in a
vehicle. This path is referred to as the downlink. The return signal path from the mobile
radio equipment to the base station is referred to as the uplink.
The first operation is to check the (optional) alarms of each of the active units and determine
that the power supplies to the equipment are connected and active.
This can be achieved remotely (via CEMS, the digital RS232 Coverage Enhancement
Management System, if fitted), or locally with the front door LED’s. The green LED on the
front door should be illuminated, while the red alarm indicator should be off.
If an Alarm is on, then that individual module must be removed and tested against the
original test specification.
The individual amplifier units have a green LED showing through a hole in their piggy-back
alarm board (or directly through a hole in the amplifier lid), which is illuminated if the unit
is working correctly.
If an amplifier is suspect, check the DC power supply to the unit. If no other fault is
apparent use a spectrum analyser to measure the incoming signal level at the input and then
after reconnecting the amplifier input, measure the output level. Consult with the system
diagram and amplifier specification to determine the expected gain and compare result.
In the event that there are no alarms on and all units appear to be functioning it will be
necessary to test the system in a logical manner to confirm correct operation.
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-48 of 52
7.1.2 Downlink
Confirm that there is a signal at the expected frequency and strength from the base station. If
this is not present then the fault may lay outside the system. To confirm this, inject a
downlink frequency signal from a known source at the master site BTS input and check for
output at the remote site feeder output.
If a signal is not received at the output it will be necessary to follow the downlink path
through the system to find a point at which the signal is lost. The expected downlink output
for the given input can be found in the end-to-end test specification.
7.1.3 Uplink
Testing the uplink involves a similar procedure to the downlink except that the frequencies
used are those transmitted by the mobile equipment.
7.1.4 Fault repair
Once a faulty component has been identified, a decision must be made on the appropriate
course to carry out a repair. A competent engineer can quickly remedy typical faults such as
faulty connections or cables. The exceptions to this are cable assemblies connecting
bandpass filter assemblies that are manufactured to critical lengths to maintain a 50-ohm
system. Care should be taken when replacing cables or connectors to ensure that items are of
the correct specification. The repair of component modules such as amplifiers, tuned cavities
or bandpass filters will not usually be possible in the field, as they frequently require
specialist knowledge and test equipment to ensure correct operation. It is recommended that
items of this type are replaced with a spare unit and the faulty unit returned to AFL for
repair. If spare parts need to be ordered from AFL, be sure to quote the serial number of the
Cell Enhancer/Repeater and the serial number [and frequencies] of the module(s) to be
replaced.
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-49 of 52
7.1.5 Checking service
Following the repair of any part of the system it is recommended that a full end-to-end test is
carried out in accordance with the test specification and that the coverage is checked by
survey.
It is important to bear in mind that the system includes a radiating cable network and base
stations that may be faulty or may have been damaged.
7.1.6 Service Support
Advice and assistance with maintaining and servicing this system are available by contacting
Aerial Facilities Ltd.
7.2 Tools & Test Equipment
The minimum tools and test equipment needed to successfully service this AFL product are
as follows:-
Spectrum analyser: 100kHz to 2GHz (Dynamic range = 90dB).
Signal Generator: 30MHz to 2GHz (-120dBm to 0dBm o/p level).
Attenuator: 20dB, 10W, DC-2GHz, (N male – N female).
Test Antenna: Yagi or dipole for operating frequency.
Digital multi-meter: Universal Volt-Ohm-Amp meter.
Test cable x 2: N male – N male, 2M long RG214.
Test cable x 2: SMA male – N male, 1m long RG223.
Hand tools: Philips #1&2 tip screwdriver.
3mm flat bladed screwdriver.
SMA spanner and torque setter.
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-50 of 52
7.3 Care of Modules
7.3.1 General Comments
Many of the active modules contain semiconductor devices utilising MOS technology, which
can be damaged by electrostatic discharge. Correct handling of such modules is mandatory to
ensure their long-term reliability.
To prevent damage to a module, it must be withdrawn/inserted with care. The module may
have connectors on its underside, which might not be visible to the service operative.
7.3.2 Module Removal (LNA’s, general procedure):
The following general rules should be followed to remove a module:
1 Remove power to the unit
2 Remove all visible connectors (RF, DC & alarm)
3 Release module retaining screws.
4 Slowly but firmly, pull the module straight out of its position. Take care not to twist/turn
the module during withdrawal. (When the module is loose, care may be needed, as there
may be concealed connections underneath).
7.3.3 Module Replacement (general):
1 Carefully align the module into its location then slowly push the module directly straight
into its position, taking care not to twist/turn it during insertion.
2 Reconnect all connectors, RF, alarm, power etc.,(concealed connectors may have to be
connected first).
3 Replace retaining screws (if any).
4 Double-check all connections before applying power.
7.3.4 Power Amplifiers
1) Remove power to the unit. (Switch off @ mains/battery, or remove DC in connector)
2) Remove alarm wires from alarm screw terminal block or disconnect multi-way alarm
connector.
3) Carefully disconnect the RF input and output coaxial connectors (usually SMA)
If alarm board removal is not required, go to step 5.
4) There is (usually) a plate attached to the alarm board which fixes it to the amplifier,
remove its retaining screws and the alarm board can be withdrawn from the amplifier in
its entirety. On certain types of amplifier the alarm board is not mounted on a dedicated
mounting plate; in this case it will have to firstly be removed by unscrewing it from the
mounting pillars, in most cases, the pillars will not have not have to be removed before
lifting the amplifier.
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-51 of 52
5) If the amplifier to be removed has a heatsink attached, there may be several different
ways it can have been assembled. The most commonly used method, is screws through
the front of the heatsink to threaded screw holes (or nuts and bolts), into the amplifier
within the main case. If the heatsink is mounted on the rear of the main case (e.g., against
a wall in the case of wall mounted enclosures), then the fixing method for the heatsink
will be from within the case, (otherwise the enclosure would have to be removed from the
wall in order to remove the heatsink).
When the heatsink has been removed, the amplifier may be unscrewed from the main
casing by its four corner fixings and gently withdrawn.
Fitting a new power amplifier module will be the exact reverse of the above.
Note: Do not forget to apply fresh heatsink compound to the heatsink/main case
joint and also between the amplifier and the main case.
7.3.5 Low Power Amplifier Replacement
1 Disconnect the mains power supply and disconnect the 24V dc supply connector for the
LPA.
2 Disconnect the RF input and output cables from the LPA.
3 Disconnect the alarm connector.
4 Remove the alarm monitoring wires from (D type connector) pins 9 and 10.
5 Remove the LPA module by removing the four retaining screws, replace with a new
LPA module and secure it with the screws.
6 Connect the RF cables to the LPA input and output connectors. Reconnect the wires to
the alarm board connector pins 9 and 10.
7 Reconnect the DC supply connector and turn the mains switch on.
Note: Tighten SMA connectors using only a dedicated SMA torque spanner. If
SMA connectors are over-tightened, irreparable damage will occur. . Do not use
adjustable pliers to loosen/tighten SMA connectors.
Also take care not to drop or knock the module as this can damage (or misalign in the
case of tuned passive modules) sensitive internal components. Always store the modules
in an environmentally friendly location
7.3.6 Module Transportation:
To maintain the operation, performance and reliability of any module it must be stored and
transported correctly. Any module not installed in a whole system must be kept in an anti-
static bag or container. These bags or containers are normally identified by being pink or
black, and are often marked with an ESD label. Any module sent back to AFL for
investigation/repair must be so protected. Please contact AFL’s quality department before
returning a module.
800MHz BDA (Pasadena Figuero Tunnel)
Maintenance Handbook
H/book Number:-60-056100HBKM Issue No:-1 Date:-21/10/2003 Page:-52 of 52
APPENDIX A INITIAL EQUIPMENT SET-UP CALCULATIONS
GENERAL INFORMATION
Site Name: Client Name:
Date: AFL Equip. Model Nō.
ANTENNA SYSTEMS
Model Gain Azimuth Comments
A - Service Antenna
B – Donor Antenna
Type Loss Length Comments
C – Service Feeder
D – Donor Feeder
INITIAL PARAMETERS
E – CE Output Power dBm
F – Antenna Isolation dB
G – Input signal level from donor BTS dBm
Operating Voltage V
DOWNLINK CALCULATIONS
Parameter Comments Value
Input signal level (G)dBm
CE max. o/p power (E)dBm
Gain setting E - G dB
Isolation required (Gain + 10dB) dB
Service antenna gain (A)dB
Service antenna feeder loss (C)dB
Effective radiated power (ERP) E+A-C dBm
Attenuator setting CE gain-gain setting dB
If the input signal level in the uplink path is known and steady, use the following calculation
table to determine the gain setting. If the CE features Automatic Gain Control the attenuator
should be set to zero and if not, then the attenuation setting for both uplink and downlink
should be similar.
UPLINK CALCULATIONS
Parameter Comments Value
Input signal level dBm
CE max. o/p power (E)dBm
Gain setting dB
Required isolation dB
Donor antenna gain (B)dB
Donor antenna feeder loss (D)dB
Effective radiated power (ERP)E+B-D dBm
Attenuator setting (CE gain-gain setting) dB