Specifications - ILS

INSTRUMENT LANDING SYSTEM (ILS) PART 1 - GENERAL REQUIREMENTS 1.1

Scope of Specification

1.1.1 This specification sets out out the minimum requirements for the supply and installation of a Category I Instrument Landing System (ILS) complete with high intensity approach lighting and Tower(s). 1.1.2 The installed system shall include the Localizer and Glideslope stations and the necessary accessory equipment for a complete installation. The systems shall be of a solid state design and each shall include an electronics subsystem, antenna system, shelter-to-antenna system cables, installation and interface kits, no-break battery backup system of the maintenance free design and necessary accessory items such as extender boards and cables and wattmeter elements. 1.1.3 The systems shall all be microprocessor controlled and shall have been designed for ease of installation, high reliability, maximum attention to fail safe characteristics in all monitoring systems, enhanced system security, the minimum number of required control and telephone lines and maximum attention to equipment and personnel safety. Circuit breakers and fuses on AC & DC power lines and internal circuits shall offer maximum protection for the equipment. Surge suppression devices shall be installed in all electronic equipment shelters. System software shall have been designed in accordance with RTCA DO-178. The systems shall be designed around a “plug and play” philosophy to the maximum extent possible where replacement modules are automatically configured for their correct operating parameters when inserted inserted in the system system cabinet. Operator interfaces to the system system using computers shall be designed around “Windows” based operating software. 1.1.4 The Localizer and Glideslope Electronic Subsystems shall consist of a Capture-Effect dual transmitter, dual monitor configuration of a modular design. The all solid state systems shall be housed in a single cabinet which is designed for mounting on the wall of an equipment shelter. The cabinets shall feature front access for all major components and may be designed in a hinged, swingout arrangement to allow access for installation and any rear mounted components. The Localizer and Glideslope shall be easily field upgradeable from Category I to Category III with the addition of a FFM ( Far Field Monitor ) 1.1.5 The Localizer Localizer antenna system shall consist of a 14-element, wide aperture Log Periodic Dipole (LPD) array of the Capture-effect design. The antenna system shall be furnished with all antenna elements and frangible supports, centrally mounted RF distribution/monitor combining unit, cable raceway, all coaxial feed and monitor cables, obstruction lighting and all civil and grounding kits needed for a complete installation. The array shall include integral monitoring pickup devices in each of the antenna elements. The antenna system shall include Antenna/ Feedline/ RF Distribution unit/ RF Combining unit, Fault monitoring circuitry, as well as provisions for generating a station alarm should any of the elements in the array become misaligned from it’s normal position. The height of the array shall be the minimum practical for the design. 1.1.6 The Glideslope antenna system shall be of the capture-effect design and utilize an array of three directional antennas mounted on a triangular steel tower with integral ladder. The system shall be furnished with antenna elements, transmitting tower, coaxial feed and monitor cables, obstruction lighting and all civil and grounding kits needed needed for a complete complete installation. The antenna system system shall include integral monitoring using pickup devices in each of the array elements.

ILS System – City of Brandon

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INSTRUMENT LANDING SYSTEM (ILS) 1.1.7 The Localizer and Glideslope systems shall each be provided with an electronic equipment shelter of the fiberglass design. Shelter size shall be 8' W x 12' L x 9' H, and each shelter shall be painted international orange and white. Each shelter shall be capable of withstanding wind loads of 100 mph in its installed condition. The shelters shall be be equipped with thermostatically controlled air conditioning, heating, and ventilation equipment and shall be completely wired including interior and exterior lighting with switches, electrical outlets, circuit breaker panel, and power line surge suppression equipment. All installation and grounding accessories shall be included with each shelter. In addition, a VHF communications antenna shall be furnished with each shelter for use during Flight Inspection activities. Interior shelter accessories shall shall include a workbench, workbench, storage cabinet, shelving and a stool. 1.1.8 A high integrity integral monitoring system shall be incorporated in the Localizer and Glideslope systems to provide fault detection by monitoring the transmitted navigation signals and initiating automatic station transfer/shutdown action in the event of an out-of-tolerance condition. Dual, parallel monitoring channels shall be included for the measurement of important signal parameters. Independently adjustable executive and maintenance alarm indications shall be included both locally at the station and remotely through the Remote Maintenance Monitoring (RMM) system. Independently adjustable pre-alarm (maintenance alert) indications shall be included for all executive monitoring parameters. Integrity of the Monitors shall be assured by certification testing using a built-in Test Generator. Generator. The monitoring system shall include a bypass capability to disable the automatic station control action during adjustment and maintenance. Front panel amber "bypass" and "alarm" lights shall be illuminated any time the monitor channels are bypassed or are in an alarm condition. All monitored and internally measured system parameters shall be available for display via a station RS-232 communications port and a Portable Maintenance Data Terminal (PMDT). The parameters shall also be available remotely through the Remote Maintenance Monitoring system. 1.1.9 The Localizer and Glideslope station control systems shall provide for manual control of the stations during maintenance operations and for automatic control during unattended operation. The following features shall be provided as a minimum: a)

Local on/off control and status indication of the transmitting equipment.

b)

Selection of which transmitter operates as Main and which operates as Standby.

c) Monitor bypass capability with indications for the Main and Standby Transmitter monitoring systems. d) Provisions for either Local or Remote control of the transmitting equipment. e)

System reset capability.

f) Automatic transfer capability from the Main to the Standby transmitting equipment in the event of an alarm condition.


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INSTRUMENT LANDING SYSTEM (ILS) g) Automatic station shutdown following transfer to the standby transmitting equipment should the station remain in an alarm condition. h) Two automatic station restart attempts following shutdown for the Localizer and Glideslope stations; the first after an adjustable time delay period of 20 to 60 seconds and the second after a fixed delay of 5 minutes. i) Automatic station transfer to and from the no-break standby battery system in the event of a primary AC power failure and subsequent restoration, and automatic turn-on following restoration of primary AC power should the standby battery system be depleted. The batteries shall automatically automatically recharge on restoration of primary power. j) Built in Wattmeter with selectable inputs, including forward / reverse powers for the main transmitter, and forward powers for the standby transmitter. 1.1.10 In addition to the control features and associated switches above, system control and monitoring functions as well as verification and adjustment of proper operating and monitoring parameters shall be available via an RS-232 communications port on the transmitter cabinet and a Portable Maintenance Data Terminal (PMDT). The system system shall be password controlled such that system adjustments are possible only with entry of the proper security codes. A second RS-232 communications port shall be connected to a modem for system operation and monitoring via a dial-up telephone line to a remote location. 1.1.11 The integral Remote Maintenance Monitoring (RMM) system shall operate in conjunction with the Control System above and shall permit remote monitoring, control, data recording and certification of proper operation of the Localizer and Glideslope subsystems. The RMM shall provide the following key functions: a) System control; b)

Adjustment of system operating parameters;

c)

Monitoring of system performance and certification parameters;

d)

Adjustment of all alarm and alert monitoring limits;

e)

Monitor Certification through the system test generator;

f)

Storage of monitor alert and alarm data;

g)

System Diagnostics;

h)

Monitoring of routine maintenance parameters;

i) Monitoring of environmental parameters including Intrusion detector, temperature and smoke sensors, obstruction lighting; j) Monitoring of Primary AC power applied to the system and Standby Battery Voltage and Current.


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INSTRUMENT LANDING SYSTEM (ILS) 1.1.12 The RMM system shall be designed in accordance with Federal Aviation Administration (FAA) Order 6000.32 (Security Requirements for Remote Access of National Airports System (NAS) Facilities) and feature a 3-level security system to insure only authorized personnel have access to the various system functions and commands: Level 1 Allows access for display-only of system status, configuration and monitored system parameters. No control functions are available at this level. Level 2 Level 1 access plus the ability to run tests or diagnostics and make adjustments which do not affect the integrity of the system. Level 3 Full system access to all functions available in the system, including assignment of user ID's and Passwords. 1.1.13 Remote Control and Status equipment shall be provided for the equipment as follows: a) A Remote Control and Status Unit (RCSU) shall be installed in the Control Tower equipment room and shall provide for ON/OFF Control, system reset and status indications for the installed ILS components. The system shall operate over a single dedicated line or optional radio link to each of the stations. b) A Remote State unit (RSU) shall be slaved to the RCSU and installed for the air traffic controllers in the control tower cab. The system shall accommodate up to two additional RSU’s for installation at various position in the tower. 1.1.14 All equipment delivered in accordance with this specification shall also conform to the requirements of the International Civil Aviation Organization (ICAO), Annex 10 to the Convention on International Civil Aviation, dated July 1996 and as amended up to the date of Invitation to Tender. 1.2.

Purpose and Intended Use

1.2.1 The ILS system shall operate in a fixed, sheltered environment but with ambient operating temperature from (-10 Celsius to +50 Celsius) while the antenna, and associated cables, connectors and mounting hardware will operate in an outdoor environment. 1.3.

Applicable Documents

1.3.1 The following Specifications, Standards and Publication of the issue in effect on the date of Invitation to Tender form a part of this specification to the extent specified herein. 1.3.1.1 ICAO - Annex 10, Volume I, International Standards and Recomm ended Practices th Aeronautical Telecommunications Annex 10 to the convention on International Civil Aviation, 6 Edition, dated July 2006 including all amendments up to the date of the contract. 1.3.1.2

1.4

ICAO Publications Documents Sales Unit International Civil Aviation Organization 999 University Street Montreal, Quebec Canada H3C 5H7 Precedence of Specification

1.4.1 Where a conflict occurs between this Specification and any other Specification or document referred to in paragraph 1.3 above, the requirements of this specification shall take precedence.


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INSTRUMENT LANDING SYSTEM (ILS)

1.5

General Requirements

1.5.1 Unless specified to the contrary (in subsequent parts hereof) the requirements stated in this Section 1 shall apply to the overall equipment. Each equipment furnished by the Bidder shall be complete in accordance with all specification requirements. 1.6

Patent and Claims Release

1.6.1 The successful Bidder shall protect, and defend and save harmless the City against any demand for patent fees or other claims of any description for any patented invention, article or arrangement that may be used in the construction or form any part of the articles delivered under the contract or the method necessitated by their use. 1.7

Spares

1.7.1 Sparing shall be carried out according to the criteria stated in the following paragraphs, with life cycle spares requirements being determined before delivery. 1.7.1.1 Spare Parts - Bidders shall include in their proposal the quantities of spares and their costs and breakdown which they deem the City should purchase in order to support all systems over the life expectancy of the equipment. The spares considered shall be: 1.7.1.1.1

Station Spares

1.7.1.1.2

Consumable Spares

1.7.1.2 Station Spares - Station spares shall consist of spare Printed Wiring Board’s (PWB’s), modules, and assemblies to permit equipment repair. These shall be chosen according to the principle of one spare for each unique module in the system 1.7.1.3 Quality of Spares - Spares (modules, PWB’s, assemblies and components parts) shall be of the same quality as originally installed. Spares shall be subject to the same parts selection criteria, quality control and testing (including temperature cycling) as original equipment. 1.7.1.4 Delivery of Spares - The delivery of spares shall be coincident with system delivery. They shall be considered part of the delivered system. 1.8

Test Equipment

1.8.1 The Bidder shall provide a list of test equipment which will be required to maintain the system. Information provided for each item of test equipment shall include, but not be limited to, the following: 1.8.1.1 Intended use. 1.8.1.2 Suggested Model. 1.8.1.3 Manufacturer or source of supply. 1.8.1.4 Approximate cost. 1.9

Packing and Shipping

1.9.1 The successful bidder shall be responsible for the packing, marking of cartons, invoices and ensuring equipment and spares arrive at the destination listed on the Schedule in an undamaged and serviceable condition, packaged and ready for onward shipment to a final destination.


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1.10

Safety Requirements

1.10.1 The successful bidder shall ensure that the equipment meets all applicable safety requirements and codes.

1.11

Definitions

1.11.1 For the purpose of this specification, in addition to the definitions given in related documents, the following terms shall have the given meanings: 1.11.1.1 Alarm - The term “alarm” used in conjunction with monitoring, shall denote a situation in which an out-of-tolerance condition, as sensed by the monitor equipment, has existed for a minimum period of time. 1.11.1.2

Local - Refers to the site where the ILS is located.

1.11.1.3 Lowest Replaceable Module (LRM) - An LRM is a subassembly which is designed for easy removal from the system. It cannot be disassembled except for removal of permanently fixed device leads. A part which has no effect on system performance or integrity, such as chassis indicator or display, will not be considered an LRM. Hereafter, the word module shall refer to Lowest Replaceable Module. 1.11.1.4 Maintenance Mode - A system is said to be in a “maintenance” mode when it has been placed out-of-service by a technician for maintenance purposes and/or configuration changes. The executive monitors continue functioning except that all executive actions are inhibited. 1.11.1.5 Normal Mode - A system is said to be in a “normal” mode when its executive monitors are fully enabled and capable of performing executive actions, such as causing an equipment changeover or shutdown when an out-of-tolerance condition occurs. No maintenance actions are to be performed on a system in the “normal” mode. 1.11.1.6 designated.

Remote - Refers to the Maintenance Center, Control Tower, or any other position so

1.11.1.7

Site - The place where the ILS system and other equipment is located.

1.11.1.8 Special Tools and Test Equipment - Those that are not carried as a standard off-theshelf line by the Contractor or any other manufacturer. 1.12

Abbreviations

1.12.1

ANSI:

American National Standards Institute

1.12.2

BITE:

Built-In Test Equipment

1.12.3

CLR:

Clearance Signal

1.12.4

CSB:

Carrier Plus Sidebands Signal

1.12.5

DDM:

Difference in Depth of Modulation

1.12.6

FRP:

Fiberglass Reinforced Plastic

1.12.7

ICAO: International Civil Aviation Organization


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1.12.8

ILS:

Instrument Landing System

1.12.9

LRM:

Lowest Replaceable Module

1.12.10

PA:

Power Amplifier

1.12.11

PWB:

Printed Wiring Board

1.12.12

SBO:

Sidebands-Only Signal

1.12.13

SDM:

Sum of the Depths of Modulation of 90 Hz and 150 Hz signals

1.12.14

VSWR: Voltage Standing Wave Ratio

PART 2 - MECHANICAL REQUIREMENTS 2.1

General

2.1.1 This section defines the mechanical requirements for the electronic equipment and the antenna systems. 2.2

Electronic Equipment

2.2.1 Configuration - All electronic assemblies, with the exception of the antenna systems, portable maintenance date terminal and remote equipment, shall be mounted in cabinet assemblies. The cabinet assemblies shall be wall mountable. 2.2.2 Equipment Unit Construction - The equipment shall be designed so that all modules and chassis components are easily accessible for maintenance. 2.2.3 Special Tools - Special tools, if required, shall be supplied as detailed in Section 1.9 of this Specification. 2.2.4 Hardware - The hardware configuration shall be such as to facilitate the repair and replacement of mechanical parts. Where required for measurement or adjustment, one printed wiring extender board shall be provided for each unique type of connector used in the system. 2.2.5 Wiring - All wiring materials shall be marked, identified, arranged and protected according to good practices. In addition, all primary power wiring within the equipment and incoming A.C. supply wiring shall be color coded. 2.2.6 Module Insertion and Removal - All modules and PWB's shall be fitted with a handle or lever to enable them to be easily and positively inserted and removed. Where practicable, handles or levers shall be permanently affixed to each module or PWB. Removable handles or levers shall be stored in the equipment chassis, close to where they are to be used. 2.2.7 Module Keying - Means shall be provided to ensure that plug-in modules and PWB'S can only be installed in their designated locations and attitudes in the equipment. Keying shall be positive and easy to use. 2.2.8 Printed Wiring Board Markings - all identification markings on PWB'S shall be oriented such that they are easily and logically readable.


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INSTRUMENT LANDING SYSTEM (ILS) All test points and field adjustable components, such as switches, potentiometers, variable capacitors, etc. shall be clearly identified by the use of silk-screening or similar markings on the PWB. All components mounted on PWB'S and in modules shall be clearly identified either on the PWB or module or in the equipment manual. 2.2.9 Co-axial and Flat Cables - Co-axial and flat cables shall be neatly and logically routed and secured within the ILS chassis such that neither the cable or their connectors will be unduly stressed or sustain any damage, either through lack of support or as a result of movement caused by withdrawing sub-assemblies to their maximum extension. Co-axial cables and flat cables where necessary, shall be adequately bonded and grounded to ensure that they will neither cause nor be affected by interference signals within the cabinet, nor will their movement our routing affect system operation. Flat cables shall be arranged neatly and compactly in such a manner to prevent them from being snagged or damaged by sub-assembly movement or during maintenance procedures. 2.2.10 Sockets - All sockets shall employ a positive means of ensuring good device contact and retention. Plug-in relays if used shall be suitably clamped. 2.2.11 Antennas- This section defines the mechanical requirements for the antenna systems to be provided with the equipment. One antenna system shall be associated with each system. The antenna systems shall contain no continuously moving parts and shall include all components necessary to form a complete system. Wherever possible, all feeders, matching networks, etc. shall be constructed using stripline techniques or rigid co-axial cable. 2.2.11.1 Special Conditions - The antenna systems shall meet the requirements of this specification during continuous unattended operation over the range of conditions up to 55 Celsius and 90% relative humidity. 2.2.11.2 Driving Rain - The antenna assemblies shall not absorb moisture under any conditions of driving rain. 2.2.11.3 radomes.

Radome - The antenna assemblies shall be protected from the weather by means of a

2.2.11.4 Finish - Finish of the antenna assemblies and any exterior metal surfaces shall have a finish suitable for all-weather exposure. 2.2.11.5 Obstruction Lighting - The antenna assemblies shall be fitted with obstruction lighting. Provision shall be made to enable removal and repair of the obstruction lights. 2.2.11.6 Toxic Material Warning - Toxic material shall not be used in any location accessible to the technician installing or maintaining the equipment. Warning signs shall be posted within the systems if toxic materials are present, and the equipment manual shall outline the safety precautions to be taken while handling these materials.


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PART 3 - GENERAL SYSTEM SPECIFICATIONS 3.1

Instrument Landing System

3.1.1

System Power Requirements

3.1.1.1 Primary Power

120/240 V AC ±15%, 47-66 Hz, single phase.

3.1.1.2 Localizer/Glideslope Standby Power

Shall be of the no-break battery backup design with a charger to provide a minimum of 6 hours operation in the event of an AC line failure. The Charger must restore the batteries to full capability from a 50% discharge condition in 8 hours or less. The batteries are to be of the sealed lead acid design.

3.1.2

Environmental Specifications

3.1.2.1 Ambient Temperature Range Outdoor Equipment:

-50°C to +70°C

Indoor Equipment:

-10°C to +50°C

3.1.2.2 Relative Humidity Outdoor Equipment:

to 100%

Indoor Equipment:

to 95% (non-condensing)

3.1.2.3 Wind

To 100 mph (161 km/hr) with 0.5" (12.7 mm) ice

3.1.2.4 Ice:

Encased in 0.5" (12.7 mm) clear ice

3.1.2.5 Altitude:

To 15,000 ft MSL (4500 m)

3.1.2.6 Duty Cycle:

Continuous

3.1.3

3.1.4

Mean Time Between Failures (MTBF) as Localizer: calculated by Mil Handbook 217F shall be as follows for the various system Glideslope: components:

4000 Hours minimum

Mechanical Requirements

3.1.4.1 Localizer and Glideslope Transmitters

3.1.5

4000 Hours minimum

To be of a Single-Cabinet design. The cabinet shall be suitable for mounting on the wall of the equipment shelter.

Localizer System Specifications

3.1.5.1 Frequency Control


Synthesizer, 40-Channel (Standard ILS Channels)

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INSTRUMENT LANDING SYSTEM (ILS) 3.1.5.2 Frequency Range

108.10 MHZ to 111.975 MHZ

3.1.5.3 Frequency Stability

± 0.0005%

3.1.5.4 Capture Effect Carrier Frequency Separation

8 kHz nominal

3.1.5.5 Power Output

As required to achieve the required coverage.

3.1.5.5.1 Carrier Harmonic Suppression

∃60

3.1.5.5.2 Main to Standby Transmitter Isolation (as measured at the antenna outputs) with Standby transmitter operating into a dummy load

∃

3.1.5.5.3 Power Transmitters

ratio,

Course

to

dB

50 dB

Clearance 10 dB nominal as measured on the runway centerline (adjustable)

3.1.5.6 Transmitter Modulation Characteristics 3.1.5.6.1 Modulating Tones

90/150 Hz Navigation 1020 Hz Identification

3.1.5.6.2 Modulating Tones Frequency

90 Hz ± 0.1% 150 Hz ± 0.1% 1020 Hz ± 1.0%

3.1.5.6.3 Modulating Tones Total Harmonic Distortion 90 Hz 150 Hz 1020 Hz

< 5% < 5% < 5%

3.1.5.6.4 Modulation Depth 90/150 Hz navigation tones Nominal Setting Adjustment Range

20% nominal for each tone 17 to 23% in 0.1% steps

Identification tone Nominal Setting Adjustment Range

8% or 10% 0 to 15% in 1% steps

3.1.5.6.5 Modulation balance, 90 Hz/150 Hz Nominal Setting Adjustment Range

3.1.5.6.6 Audio Phase Lock, 90 & 150 Hz Modulating Tones


0.000 DDM ± 0.030 DDM in 0.001 DDM steps < 5° (Course and Clearance Transmitters)

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INSTRUMENT LANDING SYSTEM (ILS) 3.1.5.6.7 Distortion Products of Demodulated Navigation Tones a) CSB: 30 Hz 60 Hz 180 Hz 240 Hz 270 Hz 300 Hz 450 Hz

5.0% # 5.0% # 5.0% # 5.0% # 5.0% # 5.0% # 5.0% #

With each frequency referenced to 90 Hz or 150 Hz, whichever is the larger signal b) SBO 90 Hz 150 Hz

5.0% # 5.0% #

With each frequency referenced to 60 Hz or 240 Hz, whichever is the larger signal 3.1.5.6.8 Carrier Suppression in SBO output 3.1.5.6.9 CSB/SBO Relative Phase Adjustment Range

3.1.5.6.10 Keying Characteristics Adjustment method

∃

30 dB

± 30° from nominal setting ( Course and Clearance transmitters)

Shall be programmable through the maintenance terminal

Number of Characters

Up to four international morse code letters. The normal setting is the letter “I” followed by a three letter station identifier.

Identification rate

Approximately 7 times per minute.

Modulation class

A2A using a 1020 HZ Tone

3.1.5.6.10.1 Keying Outputs a) Collocated DME (Distance Measuring Equipment)

Means shall be provided for keying a companion DME station which may be co-located with the Localizer station. Every fourth cycle of the identification sequence shall key the DME. The Localizer shall not be keyed during this time.

b) Aural Monitoring

It shall be possible to aurally monitor the Keyed 1020 Hz Identification tone at the equipment or remotely at the Remote Status and Control equipment.


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INSTRUMENT LANDING SYSTEM (ILS) 3.1.5.6.10.2 Keyer modes (programmable) a) Mode 1

Localizer (LOC) keying of DME continues in all LOC conditions (except LOC power removed).

b) Mode 2

LOC keying of DME stops when LOC keying is manually disabled.

c) Mode 3

LOC keying of DME stops during LOC alarm shutdown conditions.

3.1.5.7 Coverage

25 NM within ±10° from the front course line. 17 NM between 10° and 35° from the front course line.

3.1.5.8 Course Alignment Accuracy at runway threshold

± 0.015 DDM (± 35 ft (10.7 m))

3.1.5.9 Displacement Sensitivity/Course Width

Nominal 0.00044 DDM/ft (0.00145 DDM/m) based on a 700 ft (213. m) sector width at runway threshold (adjustable)

3.1.5.9.1 Course transmitter sideband amplitude control.

Shall provide for adjustment of the Localizer course sector width from 2.4° to 7.2°

3.1.5.9.2 Clearance transmitter sideband amplitude Shall provide for a smooth transition from the control Course signal to the Clearance signal and for a maximum DDM beyond the normal course sector width. 3.1.5.10 Off Course DDM (± 10° to ± 35° from the 0.180 (minimum) front course line) 3.1.5.11 Antenna System

14 element, wide aperture LPD (Log Periodic Dipole) dual frequency configuration.

3.1.5.11.1 Frequency range

108.00 to 111.975 MHZ

3.1.5.11.2 Polarization

Horizontal

3.1.5.11.3 Vertical Polarization

#

3.1.5.11.4 Vertical Coverage Limit

7°

3.1.5.11.5 Front-to-Back ratio

26 dB nominal

3.1.5.11.6 Input Impedance

50 ohms

3.1.5.11.7 VSWR

1.2:1 maximum

3.1.5.11.8 Monitoring

Integral


± 0.005 DDM within a sector bounded by 0.02 DDM on either side of the course line (as measured by an aircraft in a roll attitude of ± 20 degrees from horizontal).

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INSTRUMENT LANDING SYSTEM (ILS) 3.1.5.11.9 Obstruction Lighting

Two standard two-bulb fixtures with 116 watt lamps and aviation red covers, one fixture mounted at the top of each of the end transmitting antenna elements in the array.

3.1.5.11.10 RF Distribution Unit

Contained in a weatherproof housing at the center of the antenna array.

3.1.5.11.11 Array Height

Shall be the minimum practical for the design.

3.1.5.12

Dual Monitors Selectable AND/OR Configuration Shall consist of an Integral Monitoring System and Monitoring of the Standby Transmitter when operated in the "Hot Standby" mode.

Monitoring

3.1.5.12.1 Integral Monitoring System

a)

(*) indicates parameter is for both Course and Clearance Systems

Course Position Alarm (Centerline DDM) (*)

Nominal Alarm Setting

CAT I: ± 0.015 DDM

Alarm Adjustment Range

0.002DDM to 0.020 DDM in 0.001 DDM steps

b) Displacement Sensitivity Alarm (Width DDM) (*). Nominal Alarm Setting

CAT I: ± 17% from 0.155 DDM


0.100 DDM to 0.225 DDM in 0.001 DDM steps (For monitor Wide and Narrow alarm limits)

c)

Carrier Output Power


-1 dB (each carrier)


-10 to +3 dB in 0.1 dB steps


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INSTRUMENT LANDING SYSTEM (ILS) d) Change in Carrier Modulation Percentage (SDM) (*) Nominal Alarm Setting

± 4% (nominal) from 40%


30% to 50% in 0.1% steps (For Low and High Alarms)

e)

Continuous Identification Tone (*)


17 seconds nominal


10 - 30 seconds in 1 second steps

f)

Loss of Identification Tone (*)


17 seconds nominal



g) Reduction in Identification Modulation Percentage (*) Nominal Alarm Setting

2% nominal from 8% or 10% modulation


2.5% to 12.5% in 0.1% steps

h)

Reverse Sensing (*)

System shall alarm and immediately shut down in the event of reverse sensing of the navigation information as seen in the far field.

i)

Cable Fault

An Open or Short in any antenna element, on any antenna element feed or integral monitor pickup cable or within the antenna distribution or monitor combining networks shall initiate an immediate station shutdown.

j)

Antenna misalignment


A mechanical misalignment of any of the elements in the antenna array shall be detected an initiate an immediate station shutdown. It shall be possible to bypass this feature through the maintenance terminal.

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INSTRUMENT LANDING SYSTEM (ILS) k) RF Frequency Difference: Course-toClearance Transmitter Nominal Alarm Setting

± 500 Hz (nominal) from 8 kHz


0 to 10,000 Hz in 1 Hz steps

3.1.5.12.2 Standby Transmitter System (for hot-standby operations). a)

Monitoring (*) indicates for both Course and Clearance Transmitters.

Course Position Alarm (Centerline DDM) (*)

Nominal Alarm Setting CAT I: ± 0.015 DDM Alarm Adjustment Range 0.002 DDM to 0.020 DDM in 0.001 DDM steps.

b) Displacement Sensitivity Alarm (Width DDM) (*) Nominal Alarm Setting

CAT I: ± 17% from 0.155 DDM


0.100 DDM to 0.225 DDM in 0.001 DDM steps (For Monitor Wide and Narrow alarm limits)

c)

Carrier Output Power


-1 dB (each carrier)



d) Change in Carrier Modulation Percentage (SDM) (*) Nominal Alarm Setting

± 4% (nominal) from 40%


30% to 50% in o.1% steps (For Low and High Alarms)


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INSTRUMENT LANDING SYSTEM (ILS) e)

Continuous Identification Tone (*)


17 seconds nominal



f)

Loss of Identification Tone (*)


17 seconds nominal



g) Reduction in Identification Modulation Percentage (*) Nominal Alarm Setting

2% nominal from 8% or 10% modulation


2.5% to 12.5% in 0.1% steps

h) RF Frequency Difference: Course-toClearance Transmitter Nominal Alarm Setting




3.1.5.12.3 Maintenance Monitoring Parameters. (*) indicates both Course and Clearance The following Maintenance Monitoring Parameters Transmitters shall be provided as a minimum: a) High CSB Feedline VSWR (*)


b)

High SBO Feedline VSWR (*)

c)

High Transmitter PA Current (*)

d)

Reduction in Primary AC Supply voltage

e)

Primary DC Voltage

f)

Primary DC Current

g)

Battery Charge Current

h)

On/Off status of a co-located DME

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INSTRUMENT LANDING SYSTEM (ILS) 3.1.5.12.4 Pre-Alarm Maintenance Alerts

All Executive and Maintenance Monitoring parameters with the exception of Reverse Sensing, Antenna Fault and Mechanical Misalignment shall be equipped with a second set of alarm limits which may be adjusted to initiate a maintenance alert when the respective parameter reaches approximately 75% of its normal alarm limit.

3.1.5.12.5 Environmental Monitors

a)

3.1.5.12.6 Monitor Memory

Shall retain at least the last three fault conditions in non-volatile memory.

High or Low Shelter Temperature -10°C and +40°C nominal limits (adjustable) b) High or Low Outdoor Temperature -10°C and +40°C nominal limits (adjustable) c) Fire Alarm d) Building Security e) Obstruction Lights

3.1.5.12.7 Test Generator Shall provide the following programmable signals for monitor test and certification:

1)

Course (Centerline) position:

a)

Monitor Centering Test:

0.000 DDM ±0.001 DDM

b)

Left Alarm limit for Cert Test:

0.015 DDM

c)

Right Alarm limit for Cert Test:

0.015 DDM

d)

Adjustment Range:

0.000 DDM to 0.020 DDM in 0.001 DDM steps

2)

Course Width (Displacement Sensitivity)

a)

Monitor Width Test:

155 DDM ± 0.001 DDM (nominal)

b)

Wide Alarm limit for Cert Test:

0.129 DDM (-17% from 0.155 DDM nominal )

c)

Narrow Alarm limit for Cert Test:

0.181 DDM (+17% from 0.155 DDM nominal )

e)

Adjustment Range:

0.100 DDM to 0.225 DDM in 0.001 DDM steps)


Page 17

INSTRUMENT LANDING SYSTEM (ILS) 3)

Modulation:

a)

Monitor SDM Test:

40.0% ± 0.25% (nominal)

b)

SDM Low Alarm limit for Cert Test:

36.0% (-4% nominal)

c)

SDM High Alarm Alert limit for Cert Test:

44.0% (+4% from nominal)

d)

Adjustment Range:

30% to 50% in 0.1% steps

4)

RF Level:

a)

Normal:

Corresponds to normal carrier power output

b)

Low Level alarm limit:

80% (1 dB reduction) from normal carrier output

c)

Adjustment Range:

-10 dB to +3 dB

5)

Identification:

a)

Normal:

Corresponds to normal identification modulation level

b)

Low Modulation alarm limit:

2% reduction nominal from normal level

c)

Adjustment Range

2.5% to 12.5% modulation

3.1.5.12.8 Monitor transfer/shutdown delay times.

10 sec. Nominal for CAT I systems

Adjustment Range

0.5 to 20 seconds

3.1.6

Glideslope System Specifications

3.1.6.1 Frequency Control

40-Channel Synthesizer (channel frequency is to be paired with the Localizer)

3.1.6.1.1 Frequency Range

329.15 - 335.00 MHZ (Standard ILS Channels)

3.1.6.1.2 Frequency Stability

±0.0005%

3.1.6.1.3 Carrier Frequency Separation - Capture Effect Systems

8 kHz

3.1.6.2 Power Output

As required to achieve the required coverage

3.1.6.2.1 Carrier Harmonic Suppression

∃

60 dB

3.1.6.2.2 Main to Standby Transmitter isolation with Standby transmitter operating into dummy load

∃

50 dB


Page 18

INSTRUMENT LANDING SYSTEM (ILS) 3.1.6.3 Transmitter Modulation Characteristics 3.1.6.3.1 Modulating Tones

90/150 Hz Navigation

3.1.6.3.2 Modulating Tones Frequency Tolerance

90 Hz ± 0.1% 150 Hz ± 0.1%

3.1.6.3.3 Modulating Tones Total Harmonic Distortion 90 Hz 150 Hz

5% # 5% #

3.1.6.3.4 Modulation Depth 90/150 Hz Navigation tones: Nominal Setting Adjustment Range

40% nominal for each tone 36 to 44% in 0.1% steps

150 Hz Clearance: Nominal Setting: Adjustment Range:

80% nominal 50 to 90% in 0.1% steps

3.1.6.3.5 Modulation Balance

90 Hz/150 Hz

Nominal Setting Adjustment Range

0.000 DDM ±0.060 DDM in 0.001 DDM steps

3.1.6.3.6 Audio Phase Lock, 90 & 150 Hz Modulating Tones

Within 5°

3.1.6.3.7 Distortion Products (Demodulated Navigation Tones) a) CSB: 30 Hz 60 Hz 180 Hz 240 Hz 270 Hz 300 Hz 450 Hz

#5.0% #5.0% #5.0% #5.0% #5.0% #5.0% #5.0%

With each frequency referenced to 90 Hz or 150 Hz, whichever is the larger signal. b) SBO 90 Hz 150 Hz

5% # 5% #

With each frequency referenced to 60 Hz or 240 Hz whichever is the larger signal.


Page 19

INSTRUMENT LANDING SYSTEM (ILS) 3.1.6.4 Carrier Suppression in SBO Output

∃

3.1.6.5 CSB/SBO Relative Phase Adjustment Range

±30° from nominal setting

3.1.6.6 Coverage

In sectors of 8° in azimuth on each side of the center line of the ILS glide path to a distance of 10 NM up to 1.75 times the glide angle and down to 0.45 times the glide angle above the horizontal, or down to 0.30 times the glide angle as required.

3.1.6.7 Glidepath Displacement Sensitivity (Width)

0.0875 DDM at 0.120 ± 0.02 σ below path, upper and lower sectors symmetrical within 0.070 σ and 0.14 σ

3.1.6.7.1 Sideband Amplitude Control

Provides for full sector path width adjustment from 0.8° to 2.0°

3.1.6.8 Amplitude and Phase Control Unit (APCU)

Shall be of the broadband, fixed design and provide the following outputs to antenna system:

30 dB

Ant.

CSB

Upper N/A Middle -6 dB, 180° Lower 0 dB, 0°

SBO

CLR

-6 dB, 0° 0 dB, 180° -6 dB, 0°

0 dB, 0° N/A 0 dB, 0°

All amplitudes within ± 0.2 dB All phases within ± 5° Note: Relative Amplitudes/Phases within columns above

apply

only

3.1.6.9 Antenna System

Capture-Effect array consisting of three identical directional antennas mounted on a self-supporting transmitting tower.

3.1.6.9.1 Glide Angle

Continuously adjustable from 2° to 4° including corresponding antenna offset adjustment in 1" increments (±18" max)

3.1.6.9.2 Gain

10 dBi minimum

3.1.6.9.3 Front-to-Back Ratio

16 dB minimum

3.1.6.9.4 Polarization

Horizontal

3.1.6.9.5 Vertical Polarization

Vertical component runway centerline

3.1.6.9.6 Input Impedance

50 Ohms


∃

26 dB down within ±25° of

Page 20

INSTRUMENT LANDING SYSTEM (ILS) 3.1.6.9.7 Obstruction Lighting

Standard two-bulb fixture with 116 watt lamps and aviation red covers mounted at the top of the transmitting antenna tower.

3.1.6.9.8 Antenna Phasers

Adjustable ± 35° (Installed in each antenna feedline)

3.1.6.9.9 Antenna System VSWR

#

1.2:1 (max)

3.1.6.10 System Monitoring 3.1.6.10.1 Monitor Configuration

Integral Standby Transmitter Monitoring Dual Monitors (Selectable AND/OR Configuration) Optional Near Field Path Position Monitor

3.1.6.10.2 Integral Monitoring Parameters a)

Change in Path Position (Path DDM)

Normal Alarm Setting

± 0.2 deg (0.05 DDM) from 3-degree nominal Glidepath


0.02 to ±0.1 DDM in 0.001 DDM steps

b) DDM)

Change in Displacement Sensitivity (Width


± 25% from 0.175 DDM (nominal) Monitor Wide and Narrow alarm limits



c) Carrier Output Power of the Course Transmitter Normal Alarm Setting

80% (-1dB)


-10 to +3 dB

Resolution of Adjustment

0.1 dB


Page 21

INSTRUMENT LANDING SYSTEM (ILS) d) Carrier Output Power of the Clearance Transmitter Normal Alarm Setting

-1.25 dB



e) Change in Carrier Modulation Percentage (SDM), Course Transmitter Normal Alarm Setting

±4% from 80% (nominal)


70% to 90% in 0.1% steps

f) Change in Clearance Transmitter 150 Hz Modulation Percentage Normal Alarm Setting

-15% from 80% (nominal)


60% to 95% in 0.1% steps

g) RF Frequency Difference: Course-toClearance Transmitter Normal Alarm Setting

±500 Hz (nominal) from 8 kHz




Page 22

INSTRUMENT LANDING SYSTEM (ILS) 3.1.6.10.3 Near Field Path Position Monitoring Parameters (When Installed) a) Change in Near Field Path Position Normal Alarm Setting

±0.050 DDM (nominal)


0.000 to + 0.100 DDM

Resolution of Adjustment

0.001 DDM

b) Reduction in Near Field Path Position RF Level - 3dB from nominal Normal Alarm Setting -10dB to +3dB Alarm Adjustment Range 0.1dB Resolution of Adjustment c) Reduction in Modulation Percentage (SDM) ±4% from 80% (nominal) Normal Alarm Setting 70% to 90% Alarm Adjustment Range 0.1% Resolution of Adjustment 3.1.6.10.4 Standby Transmitter Monitoring Parameters (for hot-standby operation) a) Change in Path Position (Path DDM) Normal Alarm Setting ± 0.2 deg (0.05 DDM) from 3-degree nominal Alarm Adjustment Range ± 0.020 to ± 0.10 DDM in 0.010 DDM steps

b)

Change in Displacement Sensitivity (Width DDM)


± 25% from 0.175 DDM (nominal) Monitor Wide and Narrow alarm limits




Page 23

INSTRUMENT LANDING SYSTEM (ILS) c) Carrier Output Power of the Course Transmitter Normal Alarm Setting

80% (-1 dB)



d) Carrier Output Power of the Clearance Transmitter Normal Alarm Setting

-1.25 dB


-10 to +3dB in 0.1 dB steps

e) Change in Carrier Modulation Percentage (SDM), Course Transmitter Normal Alarm Setting

± 4% from 80% (nominal)


70% to 90% in 0.1 % steps

f) Change in Clearance Transmitter 150 Hz Modulation Percentage Normal Alarm Setting

-15% from 80% (nominal)


60% to 95% in 0.1% steps

g) RF Frequency Difference: Course-toClearance Transmitter Normal Alarm Setting





Page 24

INSTRUMENT LANDING SYSTEM (ILS) 3.1.6.10.5 Maintenance Monitoring Parameters. The following Maintenance Monitoring Parameters shall be provided as a minimum: (*) indicates for both Course and Clearance Transmitters. a)

High CSB Feedline VSWR (*)

b)

High SBO Feedline VSWR (*)

c)

High Transmitter PA Current (*)

d)

Reduction in Primary AC Supply voltage

e)

Primary DC Voltage

f)

Primary DC Current

g)

Battery Charge Current

h)

On/Off status of a co-located DME

3.1.6.10.6 Pre-Alarm Maintenance Alerts

All Executive and Maintenance Monitoring parameters shall be equipped with a second set of alarm limits which may be adjusted to initiate a maintenance alert when the respective parameter reaches approximately 75% of its normal alarm limit.

3.1.6.10.7 Environmental Monitors

a)

High or Low Shelter Temperature -10°C and +40°C nominal limits (adjustable)

b)

High or Low Outdoor Temperature -10°C and +40°C nominal limits (adjustable)

c)

Fire Alarm

d)

Building Security

3.1.6.10.8 Monitor Memory

Shall retain the last three fault conditions on firstin, first-out basis.

3.1.6.10.9 Test Generator Shall provide the following programmable signals for monitor test and certification:


Page 25

INSTRUMENT LANDING SYSTEM (ILS) 1)

Path position:

a)

Monitor Centering Test

0.000 DDM ±0.001 DDM

b)

Path Low Alarm for Cert Test:

-0.050 DDM from 3 degree nominal Path

c)

Path High Alarm for Cert Test:

+0.050 DDM from 3 degree nominal Path

d)

Adjustment Range:

0.000 DDM to 0.100 DDM

2)

Path Width:

a)

Monitor Width Test:

.175 DDM (nominal)

b)

Wide Alarm Cert Test:

0.131 DDM (-25% from 0.175 DDM nominal)

c)

Narrow Alarm Cert Test:

0.219 DDM (+25% from 0.175 DDM nominal)

d)

Adjustment Range:

0.075 DDM to 0.275 DDM in 0.001 DDM steps)

3)

Modulation (SDM):

a)

Monitor SDM Test:

80.0% (nominal)

b)

SDM Low Alarm for Cert Test:

76.0% (-4% from nominal)

c)

SDM High Alarm for Cert Test:


d)

Adjustment Range

Adjustable from 70% to 90% in 0.1% steps

4)

Modulation (150 Hz Clearance):

a)

Clearance Normal for Generator Test:

80.0% (nominal)

b)

Clearance Low Alarm for Cert Test:

76.0% (-4% from nominal)

c)

Clearance High Alarm for Cert Test:


c)

Adjustment Range

Adjustable from 70% to 90% in 0.1% steps

5)

RF Level:

a)

Normal for Generator Test:

Corresponds to normal carrier power output

b)

Low Level alarm for Cert Test:

80% (1dB reduction) from normal carrier output

c)

Adjustment Range

-10 dB to +3 dB


Page 26

INSTRUMENT LANDING SYSTEM (ILS) 3.1.6.10.10 Monitor transfer/shutdown delay times

3.1.7

6 sec. Nominal (adjustable delay time range from 0.5 seconds to 10 seconds)

LOCALIZER/GLIDESLOPE LOCAL CONTROL

UNIT

3.1.7.1

Controls

3.1.7.1.1 Front Panel Control Switches

The following controls shall be available as a minimum on the front panel of the equipment and through the Portable Maintenance Data Terminal a) b) c)

d) e) f) g) h) j) 3.1.7.1.2 Control functions available through a) Portable Maintenance Data Terminal (PMDT) b) c) d) e) f) g)

h) 3.1.7.2

Front Panel Lamps and Indicators

3.1.7.2.1 Lamps

Main transmitter selection No.1/No.2 transmitter RF ON/OFF Equipment transfer No. 1/No.2 System Reset Integral Monitor Bypass Standby Transmitter Monitor Bypass Transmitter and Monitor Control, Parameter Display, Adjustment and Calibration Diagnostics and Self Test

The following lamps and indicators shall be provided as a minimum on the front panel of the equipment. a) b) c) e) f) g) h) i) j)

k)

l)


Main Transmitter Selection Local/Remote Control AC and DC Power Controls for No. 1 and No. 2 transmitters No. 1 and No. 2 Transmitter RF ON/OFF System Reset Lamp Test Integral Monitor Bypass Standby Transmitter Monitor Bypass Wattmeter Channel Select

AC Power indication System Operating on Batteries Main Transmitter Selected (No. 1 or No. 2) No. 1/No. 2 Transmitter OFF No. 1/No. 2 Transmitter ON ANTENNA No. 1/No. 2 Transmitter ON DUMMY LOAD Maintenance Alert Remote Control Fault Integral Monitor No. 1 Normal No. 1 Alarm No. 2 Normal No. 2 Alarm Bypass Standby Transmitter Monitor No. 1 Normal No. 1 Alarm No. 2 Normal No. 2 Alarm Bypass Local/Remote Control

Page 27

INSTRUMENT LANDING SYSTEM (ILS) 3.1.7.3 Indicators

RF Wattmeter Localizer On-Air Transmitter CSB (Course):

Fwd Pwr , Refl Pwr

SBO (Course):

Fwd Pwr , Refl Pwr

CSB (Clearance):

Fwd Pwr , Refl Pwr

SBO (Clearance):

Fwd Pwr , Refl Pwr

Localizer Standby Transmitter CSB (Course):

Fwd Pwr

SBO (Course):

Fwd Pwr

CSB (Clearance):

Fwd Pwr

SBO (Clearance):

Fwd Pwr

Glideslope System CSB (Course):

Fwd Pwr, Refl Pwr

SBO (Course):

Fwd Pwr, Refl Pwr

CSB (Clearance):

Fwd Pwr, Refl Pwr

Upper Antenna:

Fwd Pwr, Refl Pwr

Middle Antenna:

Fwd Pwr, Refl Pwr

Lower Antenna:

Fwd Pwr, Refl Pwr

Glideslope Standby Transmitter


CSB (Course):

Fwd Pwr

SBO (Course):

Fwd Pwr

CSB (Clearance):

Fwd Pwr

Page 28


PART 4 – REMOTE CONTROL & STATUS UNIT (RCSU) and REMOTE STATUS UNIT (RSU) SPECIFICATIONS 4.1

System Power Requirements

4.1.1

Primary Power

a)

Remote Status & Control Unit (RCSU)

120/240 V AC ± 15%, 47-66 Hz, single phase

b)

Remote Status Unit (RSU)

90 to 264 V AC, 47-63 Hz, single phase

4.1.2

Standby Power (Optional)

a)

Remote Control & Status Unit (RCSU)

No-break battery backup system with charger provides 1 hr operation. Charger will restore batteries to full charge in 6 hours.

b)


8.4 V DC no-break battery backup system with charger provides 1 hour operation. Charger will restore batteries to full charge in 24 hours.

4.2

Environmental Specifications

4.2.1

Ambient Temperature Range

+10°C to + 50°C

4.2.2

Relative Humidity

10 to 80% (non-condensing)

4.2.3

Altitude

to 10,000 ft MSL (4500 m)

4.2.4

Duty Cycle

Continuous

4.2.5 217F)

MTBF (as calculated by MIL Handbook

20,000 hours minimum

4.3

Dimensional Data

4.3.1

Remote Status & Control Unit (RCSU)

4.3.2


Size

195 mm(7.69") Wide x 133 mm (5.22") High x 76 mm (3") Deep including connectors.

Weight

0.79 kg (1.75 lb)

4.4

Remote Status & Control Unit (RCSU) Switches & Indicators

4.4.1

Localizer and Glideslope Systems


Page 29

INSTRUMENT LANDING SYSTEM (ILS) 4.4.1.1 Switches

a) b) c) c) d)

4.4.1.2 Indicators

a) b) c) d) e) f) g) h) i)

System ON/OFF Near Field Monitor Bypass Far Field Monitor Bypass (Localizer only) System Transfer System Reset

l)

Main Transmitter On Standby Transmitter On Off Maintenance Alert Communications Failure System Operating on Batteries Primary AC Power Failure System on Local Control Integral Monitor Normal Alarm Mismatch Bypass Standby Transmitter Monitor Normal Alarm Mismatch Bypass Near & Far Field Monitors (Near Field- only on Glideslope systems) Normal Alarm Mismatch Bypass AUX Equipment On/Off

4.4.2.1 Switches

a) b) c)

System On/Off System Transfer System Reset

4.4.2.2 Indicators

a) b) c) d) e) f)

Main Transmitter On Standby Transmitter On Off Communications Failure Monitor Normal Monitor Alarm

a) b) c)


j)

k)

4.4.2

4.4.3

Marker Beacon Systems - Outer, Middle, Inner; (each system)

DME (When Installed with ILS Localizer or Glideslope)

4.4.3.1 Switches


Page 30

INSTRUMENT LANDING SYSTEM (ILS) 4.4.3.2 Indicators

a) b) c) d) e) f) g) h)

4.4.4

Main Transmitter On Standby Transmitter On Off Communications Failure System Operating on Batteries Primary AC Power Failure Monitor - Main Normal Alarm Bypass Monitor-Standby Normal Alarm Bypass

VOR/DME Systems (separate co-located facilities installed at the same location as ILS)

4.4.4.1 VOR System 4.4.4.1.1 Switches

a) b) c)


4.4.4.1.2 Indicators

a) b) c) d) e) f)


4.4.4.2.1 Switches

a) b) c)


4.4.4.2.2 Indicators

a) b) c) d) e) f)


a)

Audio Selection - LOC & DME Identification/Communications Alarm Silence

4.4.4.2 DME System

4.4.5

RCSU Front Panel

4.4.5.1 Switches & Controls

b) 4.4.5.2 Indicators

a) b)

4.4.5.3 Connector


a)

On Battery (When optional Battery Backup is installed) Audible Alarm Portable Maintenance Data Terminal (PMDT)

Page 31

INSTRUMENT LANDING SYSTEM (ILS) 4.5

Remote Status Unit (RSU) Switches & Indicators

4.5.1

Switches & Controls

a) b) c) d) e) f)

4.5.2

Indicators

a) b)

c)

d)

e)

f)

g)

h)

i)

j) k) l) m) n) o)


Runway Select (press two switches simultaneously) Alarm Silence/Cancel Alarm Volume Up/Down Self Test Lamp Intensity Up/Down Far Field Monitor Bypass

Runway Selected Display System Operational Status Indicators CAT III CAT II CAT I LOC Only Localizer System Main On Standby On Main Alarm/Off Standby Alarm/Off Maintenance Alert Glideslope System Main On Standby On Main Alarm/Off Standby Alarm/Off Maintenance Alert Outer Marker System Main On Standby On Main Alarm/Off Standby Alarm/Off Maintenance Alert Middle Marker System Main On Standby On Main Alarm/Off Standby Alarm/Off Maintenance Alert Inner Marker System Main On Standby On Main Alarm/Off Standby Alarm/Off Maintenance Alert VOR System Main On Standby On Main Alarm/Off Standby Alarm/Off Maintenance Alert DME System Main On Standby On Main Alarm/Off Standby Alarm/Off Maintenance Alert Auxiliary 1 On/Off Auxiliary 2 On/Off RSU AC Power Ok/On Batteries (when Optional Battery Backup is installed) RSU Communications Failure Audible Alarm Far Field Monitor On/Off & Bypass

Page 32

INSTRUMENT LANDING SYSTEM (ILS) 4.5.3 Major Functions Activating Operational Status 3.1.3.11.1 Indicators on RSU Panel

Indications:

a) Localizer and Glideslope subsystems operating normally (main transmitters connected to the antenna systems, no monitor alarms or maintenance alerts, no Localizer or Glideslope subsystem-to-RSCU communication faults

CAT III CAT II CAT I LOC Only

On On On Off

b) Localizer operating normally and Glideslope operating on Standby equipment (downgrade condition)


Blink Blink On Off

c) Localizer operating on Standby equipment; Glideslope operating on either Main or Standby


Off Blink On Off

d) Monitor mismatch condition at Localizer or Glideslope


Off On On Off

e) FFM detects Localizer course misalignment in excess of CAT III tolerance for nominal 2 seconds (adjustable from 1 to 10 seconds)


Off On On OFF

f) FFM detects Localizer course misalignment in excess of CAT III tolerance for nominal 5 seconds (adjustable from 1 to 120 seconds)


Off Off On Off

g) Glideslope Main and Standby equipment OFF; Localizer on Main or Standby


Off Off Off On

PART 5 - QUALITY REQUIREMENTS 5.1 ISO-9000

The Contractor shall be ISO-9000 certified.

5.2 Factory Acceptance Tests

The Contractor shall conduct final acceptance tests on the equipment to be delivered. The Purchaser reserves the right to witness the tests.

5.3 Test Data

The Contractor shall furnish a copy of the Final Acceptance Test results with the equipment.


Page 33


PART 6 - DOCUMENTATION REQUIREMENTS 6.1

General

6.1.1 The general requirements for Bidder supplied documentation are described in the following paragraphs. 6.2

Final Manuals

6.2.1 Manuals shall be divided into logical sections which contain installation instructions, operating instructions, alignment and adjustment procedures, detailed theory of operation (in particular pertaining to the interactions of the sub-assemblies and modules and associated interfaces as part of the total system), maintenance routines, fault finding and troubleshooting procedures, detailed parts lists and drawings. Associated software and hardware descriptions, in particular as they relate to system operation, shall be included. The contents shall be sufficiently detailed to enable the City’s technical personnel to understand clearly how the system functions and to be able to trace and measure signals throughout the system down to the PWB/module level. Schematics and diagrams shall be of a quality to enable clear and unambiguous comprehension. PART 7 - TRAINING REQUIREMENTS 7.1.1 The Bidder shall provide a price for the presentation of a course of instruction for installation and maintenance personnel. Details of the course including subjects, length, student requirements, and materials furnished, etc. shall be provided with the proposal. 7.2 The technical training shall cover in detail, the theory, operation, test and alignment procedures and fault recognition techniques relevant to the ILS equipment. Preventive maintenance procedures (where applicable) shall be covered, however, more emphasis is to be placed on alignment and operating procedures, fault finding and techniques for efficient and expeditious repair of equipment failures. Emphasis shall be placed on understanding of system hardware and software by means of block diagrams, logic diagrams, state diagrams, flow charts, signal identifications, memory maps, etc. The ratio of practical sessions to the amount of classroom theory should be as large as practicable, recognizing the total time available for training. 7.3 Course Scheduling - It is intended that the first maintenance training course on the ILS system will be completed prior to the shipment of the first system. 7.4 Course Presentation - In drawing up the syllabus, the Bidder shall schedule no more than six hours of formal classroom instruction in any one day. Classroom practical training together shall not exceed seven hours in any one day. 7.5 Reports on Training - An examination shall be held at a suitable interval during, and at the end of each training course to monitor the progress of each trainee and to check on the effectiveness of the instructional method. Following each course, the Bidder shall report on the performance of each trainee. During each course, should a trainee experience such difficulty as to warrant withdrawal from the course, the contractor shall immediately advise the City. 7.6 Bidders Personnel - The Bidders shall provide a suitable number of competent and qualified instructors fully capable of providing the required training to a high standard. The City reserves the right to examine the background, training and experience of the Bidder’s instructors in order to assess their competency and decide on their acceptability.


Page 34

Specifications - ILS

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