Thales AHV1600 Operation And Installation Manual Download Page 21

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THALES COMMUNICATIONS

OIM
AHV1600-SYSTEM

IS Page 1

July 16/09

EQUIPMENT IDENTIFICATION SHEET

F0057

AHV1600_RADAR ALTIMETER SYSTEM

PHYSICAL CHARACTERISTICS

MAIN COMPONENTS

Qty

DIMENSIONS (mm)

WEIGHT

P/N

Length

Width Height

(kg)

Transceiver: AHV1600

Antenna: ANT140A

Coaxial cables not provided

190 max

105.41 max

90 max

90.17 max

95 max

33 max

≤

2 kg

0.130 ± 20 g

AHV1600-01-01 00 A

9599-607-

12352

Antenna ANT-140A

Coaxial

AHV1600 Transceiver

Summary of Contents for AHV1600

Page 1: ...6719226 AB revision No 1 dated NOV 25 09 is attached and covers all components held by every operator P N 36719226 AB The OIM revision No 1 dated NOV 25 09 is attached and covers all components held by every operator FILING INSTRUCTIONS Revision 1 replaces original issue Original issue is deleted HIGHLIGHTS To correct the OIM P N 36719226 AA Original issue ...

Page 2: ...OIM AHV1600 SYSTEM TS Page 2 NOV 25 09 THIS PAGE INTENTIONALLY LEFT BLANK ...

Page 3: ...THALES Communications ORIGINAL ISSUE July 16 09 REF 36719226 AB REVISION No 01 TP Page 1 2 Nov 25 09 OPERATION AND INSTALLATION MANUAL AHV1600 Radar Altimeter System ...

Page 4: ...THALES Communications OIM AHV1600 SYSTEM TP Page 2 2 July 16 09 ...

Page 5: ...THALES Communications OIM AHV1600 SYSTEM ROR Page 1 2 NOV 25 09 RECORD OF REVISIONS INSERTION INSERTION REVISION REVISION REVISION REVISION N DATE DATE BY N DATE DATE BY 01 2009 11 25 ...

Page 6: ...THALES Communications OIM AHV1600 SYSTEM ROR Page 2 2 July 16 09 ...

Page 7: ...THALES Communications OIM AHV1600 SYSTEM RTR Page 1 2 July 16 09 RECORD OF TEMPORARY REVISIONS TEMPORARY REVISIONS INSERTED DELETED N PAGE N DATE BY REVISION N BY ...

Page 8: ...THALES Communications OIM AHV1600 SYSTEM RTR Page 2 2 July 16 09 ...

Page 9: ...THALES Communications OIM AHV1600 SYSTEM SBL Page 1 2 July 16 09 SERVICE BULLETIN LIST SERVICE BULLETIN N REVISION N REVISION DATE SUBJECT ...

Page 10: ...THALES Communications OIM AHV1600 SYSTEM SBL Page 2 2 July 16 09 ...

Page 11: ...9 Identification sheet 1 JULY 16 09 R 2 NOV 25 09 General 1 JULY 16 09 2 JULY 16 09 3 JULY 16 09 4 JULY 16 09 Presentation 101 JULY 16 09 102 JULY 16 09 103 JULY 16 09 104 JULY 16 09 105 JULY 16 09 106 JULY 16 09 107 JULY 16 09 108 JULY 16 09 109 JULY 16 09 110 JULY 16 09 111 JULY 16 09 112 JULY 16 09 113 JULY 16 09 114 JULY 16 09 115 JULY 16 09 116 JULY 16 09 117 JULY 16 09 118 JULY 16 09 119 JUL...

Page 12: ...THALES Communications OIM AHV1600 SYSTEM LEP Page 2 2 July 16 09 ...

Page 13: ... GENERAL DESCRIPTION 101 2 AHV1600 TRANSCEIVER 102 A EXTERNAL CHARACTERISTICS 103 B INTERNAL SUB ASSEMBLIES 106 C FUNCTIONAL CHARACTERISTICS 106 3 OPERATIONAL INTERFACES 117 A POWER SUPPLY 117 B DIGITAL ARINC429 INTERFACE 117 C AID SIGNALS INTERFACE 118 D ENVIRONMENTAL CONDITIONS 119 E IN FLIGHT CONDITIONS 120 4 ANTENNA ANT 140A 120 A GENERALITIES ON ANTENNA ANT 140A 120 B PHYSICAL CHARACTERISTICS...

Page 14: ...QUIPMENT 207 D HANDLING 207 5 EQUIPMENT INPUTS OUTPUTS 207 A MAIN CONNECTOR J1 207 B RX TX ANTENNA 210 OPERATION 301 1 RADAR ALTIMETER ENERGIZATION 301 2 FUNCTIONNAL TEST 301 3 NORMAL OPERATING MODE 301 4 OUT OF RANGE OPERATION 301 5 FAILURE MODE 301 6 DEFAULT OPERATING INSTRUCTIONS 302 7 OPERATIONAL LEVEL MAINTENANCE TASK 302 A REMOVING THE TRANSCEIVER 302 B INSTALLING THE SPARE TRANSCEIVER 302 ...

Page 15: ...igure 109 ORGANIZATION OF STATUS DATA WORD LABEL 271 110 Figure 110 ORGANIZATION OF STATUS DATA WORD LABEL 272 112 Figure 111 ORGANIZATION OF FIRST EQUIPMENT IDENTIFIER DATA WORD LABEL 371 112 Figure 112 ORGANIZATION OF INTERMEDIATE EQUIPMENT IDENTIFIER DATA WORD LABEL 371 113 Figure 113 ORGANIZATION OF LAST EQUIPMENT IDENTIFIER DATA WORD LABEL 371 113 Figure 114 ORGANIZATION OF STATUS DATA WORD L...

Page 16: ...THALES Communications OIM AHV1600 SYSTEM TF Page 2 2 July 16 09 ...

Page 17: ...99 General 101 199 Presentation 201 299 Installation 301 399 Operation All values have been given in the units or multiples or sub multiples of these units of the International Sys tem S I It is possible that the values are given in more usual units The English equivalents are given into brackets 3 UPDATING In case of update of the manual detailed instructions for the insertion and deletion of app...

Page 18: ...ll be placed on a conducting or antistatic working surface grounded through a resistance of between 250 kohm and 1 Mega ohm The operator shall wear a cotton smock and shall be linked with the working surface by a con ducting wristband through a resistance of 1 Mega ohm Soldering iron shall be grounded The transport and storage of parts removed from the equipment printed board assemblies modules hy...

Page 19: ...uous Wave D A Digital Analogical dB deciBel dBm deciBel milliwatt DC Direct Current DMB Digital and Management Board EMC ElectroMagnetic Compatibility Fb Beat Frequency FM Frequency Modulation FT Functional Test Fore Forward HI HIgh HIRF High Intensity Radiated Fields Lightning IBIT Initiated Built In Test IEC International Electronical Commission I O Input Output LO Low LRU Line Replaceable Unit ...

Page 20: ...ons OIM AHV1600 SYSTEM INTRO Page 4 July 16 09 Abbreviation Acronym Identification S I International System ST Saw Tooth SWR Standing Wave Ratio Tx Transmission USB Upper Significant Bit VCO Voltage Controlled Oscillator ...

Page 21: ...METER SYSTEM PHYSICAL CHARACTERISTICS MAIN COMPONENTS Qty DIMENSIONS mm WEIGHT P N Length Width Height kg Transceiver AHV1600 Antenna ANT140A Coaxial cables not provided 1 2 190 max 105 41 max 90 max 90 17 max 95 max 33 max 2 kg 0 130 20 g AHV1600 01 01 00 A 9599 607 12352 Antenna ANT 140A Coaxial AHV1600 Transceiver ...

Page 22: ...equency Range 4 2 GHz to 4 4 GHz Frequency Deviation 123 MHz typical Transmitted Power 18 dBm 63 mW max typical Height range accuracy The maximum error at every simulated height and within the temperature range 40 C 70 C is 2 ft 2 H 6 Environmental conditions DO160E Cat B4 X BBB RG XWFDFSZZAZ ZC HF M A4G33 A3J33 XXAX AHV1600 TRANSCEIVER FUNCTIONAL CHARACTERISTICS FUNCTIONS OF THE EQUIPMENT Provide...

Page 23: ...ound as a function of elapsed time from the transmis sion of the electromagnetic wave to its return after reflection from the ground The transmission time is directly proportional to the height above ground level It measures the shortest delay τo between the transmitted wave and the received wave linked to the mini mum distance to the terrain Ηo by the formula TERRAIN GROUND SEA h t 2 h c AIRCRAFT...

Page 24: ...t every in stant the frequency fbi of this signal is equal to fbi F t F t τi As the modulation is linear fbi is linked to τi and then to Hi by the formulae fbi F i T Hi c T ST ST τ 2 The fbi frequencies form the beat signal spectrum This spectrum is constituted of all the frequencies from the ground and the thermal noise as well To enable a measurement of fbo with a probability of noise detection ...

Page 25: ...ly This test is per formed in 3 s B INITIATED BUILT IN TEST IBIT The AHV1600 Transceiver is capable of carrying out a performance test to confirm the serviceability of the Transceiver upon receipt of the discrete input signal FCT_TST This test is performed in 3s C CONTINUOUS BUILT IN TEST CBIT The AHV1600 Transceiver is carrying out a continuous test of performance of the system as a back ground t...

Page 26: ...l Management Board Mother Board Including I O Power supply ANT140A 4 2 4 4 GHz Antenna Rx Reception Tx Emission RS232 lines Discretes RF signals ARINC 429 lines I O maintenance Height and status I O Dedicated information HIRF Stage ANT140A 4 2 4 4 GHz Antenna Figure 1 AHV1600 RADAR ALTIMETER SYSTEM ...

Page 27: ...enna to the transceiver one reception cable to connect the reception antenna to the transceiver Transmission antenna ANT140A LRU Transceiver AHV1600 LRU Reception antenna ANT140A LRU AHV1600_RADAR ALTIMETER Reception cable Transmission cable Figure 101 AHV1600 RADAR ALTIMETER SYSTEM BLOCK DIAGRAM The AHV1600 is an autonomous system mounted on an aircraft and connected to 28 Vdc power supply line P...

Page 28: ...fixed on the aircraft structure by means of four M6 screws The unit is made up of a chassis with a front panel The front panel is equipped with one main connector two coaxial connectors one reception connector Rx one transmission connector Tx Figure 102 AHV1600 TRANSCEIVER GENERAL VIEW Manufacturing serial number label THALES identification label Specific label amendment label ESD Electro Static D...

Page 29: ... mm The weight of the unit is 2 kg Figure 103 OVERALL DIMENSIONS Note all dimensions are in mm 2 FRONT PANEL The front panel bears the antennae connectors the main connectors the specific label the amendment label the ESD label and the immunity label All connectors are equipped with special caps provided electrical shielding as well as mechanical protection ...

Page 30: ...hich provide the following indications Field Number Field 1 Serial number 2 LRU Description 3 Date of manufacturing 4 Inspection stamp b THALES Identification Label The THALES identification label is stuck on the left side refer to Figure 102 One field pro vides the following indication Field Number Field 1 THALES commercial part number Figure 104 MANUFACTURING SERIAL NUMBER LABEL Figure 105 THALE...

Page 31: ... label is stuck on the front panel refer to Figure 102 It is divided into five fields which provide the following indications Field Number Field 1 ETSO certification number 2 TSO certification number 3 FCC ID designation 4 DO designation 5 Weight Figure 106 AMENDMENT LABEL Figure 107 SPECIFIC LABEL 1 2 3 4 5 ...

Page 32: ... 165 BNR and BCD Radar Altimeter Status ARINC word label 272 Timing between both word labels is described hereafter First ARINC 429 output serial IRS1 TX HI IRS1 TX LO Second ARINC 429 output serial IRS2 TX HI IRS2 TX LO ARINC 429 specification Exchange unidirectional asynchronous Word format 32 bits data transfer with LSB transmitted in first Label format 8 bits in octal coding from LSB position ...

Page 33: ...ord label 371 first equipment identifier data word 5 Height data word label 377 6 Height data word label 165 Frame rate on IRSx TX HI LO differential output serial line 40 ms 1 ms 2 DATA WORD ORGANIZATION a height data word label 164 description Label data field Bits 8 1 Label value 001 011 10 164OCT Source Destination Identifier SDI data field Bits 10 9 Discrete input SDI_SEL 00 Undefined 01 Disc...

Page 34: ... Bits 31 30 Validity 00 Failure warning FW 01 No Computed Data NCD 10 Functional Test FT 11 Normal Operation NO 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 Parity SM Sign Height data value in BNR format coded in two s complement LSB Spare FTI SDI LSB Label 164 MSB 0 0 0 1 0 1 1 1 0 Figure 108 ORGANIZATION OF HEIGHT DATA WORD LABEL 164 b Status data word l...

Page 35: ...ble input value not authorized 0 110 Configurable input value not authorized 1 110 Reserved 0 101 Configurable input value not authorized 1 101 Reserved 0 100 Reserved 1 100 Configurable input value not authorized 0 011 Configurable input value not authorized 1 011 Reserved 0 010 Reserved 1 010 Configurable input value not authorized 0 001 46 625fte 1 001 Configurable input value not authorized 0 ...

Page 36: ... 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 Parity SM Spare Spare Spare Spare Spare Reserved Reserved Reserved Reserved Reserved Reserved TST_INH FCT_TST Reserved Reserved AID_P AID2 AID1 AID0 SDI LSB Label 271 MSB 0 0 0 0 0 1 0 0 1 1 1 0 1 Figure 109 ORGANIZATION OF STATUS DATA WORD LABEL 271 c Status data word label 272 description Label data field Bits 8 1 Label value 010 111 01 272OCT Source Desti...

Page 37: ...s 21 20 AU Transceiver mode 00 Reserved 01 Operational 10 Reserved 11 Reserved Failure data field Bit 29 24 Logic state Tx antenna Rx antenna PSU I O CPU Radio 0 Failure 1 No failure Radio failure Problem detected on radio board CPU failure Problem detected on CPU board I O failure Problem detected on I O board PSU failure Problem detected on PSU board Rx antenna failure Impedance on RX antenna fa...

Page 38: ...0 1 Figure 110 ORGANIZATION OF STATUS DATA WORD LABEL 272 d Status data word label 371 description Several words label 371 are required to transmit the equipment identifier data These words label 371 are encapsulated by the STX and EOT words label 371 to form the global transmission of the equipment identifier data 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 ...

Page 39: ...B Character 2 LSB Spare MSB Character 1 LSB LSB Label 371 MSB 1 0 0 1 1 1 1 1 Figure 112 ORGANIZATION OF INTERMEDIATE EQUIPMENT IDENTIFIER DATA WORD LABEL 371 The last equipment identifier data word label 371 shall indicate the end of transmission of equipment identifier data by transmitting the EOT character 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 Pa...

Page 40: ...d Equipment identification data field Bits 22 11 Equipement identification 111 111 11 007HEX Status Matrix data field discrete data word Bits 31 30 Validity 00 Normal Operation NO 01 Not used 10 Not used 11 Failure warning FW 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 Parity SM No data MSB Equipment Identification Code LSB SDI LSB Label 377 MSB 0 0 0 0 0...

Page 41: ...its 10 9 Discrete input SDI_SEL 00 Undefined 01 Discrete grounded 10 Discrete open 11 Not used Height data field Bits 29 11 Height value Height range from 0 ft up to 5500 ft LSB value 0 1 ft Height value in binary coded decimal on 19 bits MSB bit 29 LSB bit 11 Status Matrix data field BCD numeric data word Bits 31 30 Validity 00 Normal Operation 01 No computer Data NCD 10 Functional Test FT 11 Not...

Page 42: ...et to high level voltage discrete open To initiate the internal Built In Test function of the AHV1600 transceiver the minimum time duration of FCT_TST discrete input signal shall be 200ms when measured at 50 level of the electrical changing voltage In the AHV1600 transceiver the FCT_TST discrete input signal shall be in accordance with the following electrical characteristics Low level voltage 3 5...

Page 43: ...e electrical changing voltage In the AHV1600 transceiver the discrete input signal TST_INH shall be protected against the indirect effect of lightning 3 OPERATIONAL INTERFACES A POWER SUPPLY The Transceiver shall be powered with a 28 Vdc 5 The voltage transients shall be range 21 V to 32 V for up to 2 ms range 21 V to 38 V for up to 1 ms The Transceiver shall be not damaged in unusual conditions 5...

Page 44: ...igurable input signals AID_P and AID 2 0 from the Naviga tion computer to code the Aircraft Installation Delay To select the Aircraft Installation Delay each dedicated AID_P and AID 2 0 configurable input signal must be connected as short as possi ble to the AID GROUND reference signal or left open 2 ELECTRICAL CHARACTERISTICS Low level voltage 3 5 Vdc with sink current 2 mA logic state 1 High lev...

Page 45: ...er input 16 Category Z TCF declares that the AHV1600 Transceiver is able to withstand momentary power interruption up to 2ms Test condition 1 of table 16 3 Voltage spike 17 Category A Audio frequency conducted suscepti bility power inputs 18 Category Z Induced signal susceptibility 19 Category ZC Radio frequency susceptibility radi ated and conducted 20 Category H for Conducted Susceptibility Cate...

Page 46: ...n category L Radar Altimeter in flight conditions 4 ANTENNA ANT 140A A GENERALITIES ON ANTENNA ANT 140A The ANT140A antenna is a flat antenna for AHV1600 Radar Altimeter The complete installation of the Radar Altimeter requires two identical antennae ANT 140A one for transmission Tx and one for reception Rx These two antennae must be suitably located and connected by coaxial cables to the transcei...

Page 47: ...1600 SYSTEM Page 121 July 16 09 The outside bears the inscription DO NOT PAINT as well as an antenna positioning symbol Figure 117 ANT 140A OUTER SIDE A Antenna positioning symbol Figure 116 ANT 140A INNER SIDE A Longitudinal Axle ...

Page 48: ...7 Pitch H Plane 50 5 NOTE The E plane is perpendicular to the direction of the straight line painted on the external antenna front face The H plane is parallel to the direction of the straight line Decoupling The decoupling value for a distance of 0 4 m between antenna centres is 72 dB Grounding The resistance between connector core and its shielding is 0 05 ohm 5 COAXIAL CABLES LENGHT 1 RECOMMEND...

Page 49: ...istance from ground to receive antenna and back to the transceiver receiving output via the receiving antenna L1 L2 Electrical length in feet of the coaxial cables between the transceiver and transmitting and receiving antennas respectively L3 L4 Distance in feet between transmitting and receiving antennas to the ground when the air craft is on the ground ANT1 and ANT2 are the electrical length in...

Page 50: ......

Page 51: ...R SAND AND DUST TIGHTNESS Although the equipment is designed to withstand salt spray and a high degree of humidity it is not waterproof and precautions should be taken to protect it against trickling or sprayed water accord ing to its specifications D MOUNTING The AHV1600 Transceiver is fixed on the platform by means of four M6 screws without any pre ferred orientation E INSTALLATION CONDITIONS Th...

Page 52: ...anes Furthermore users have to take into account the fact that tilting any antenna with respect to the aircraft hori zontal plane will affect the system performances in terms of capability to withstand aircraft s atti tudes The residual resistance between the structure of the aircraft and the structure of each antenna body of the coaxial connector shall not exceed 2 5 milliohm The residual resista...

Page 53: ...attitude if it is not possible to mount the antennae horizontally a maximum angle of 5 degrees may be tolerated CAUTION Pitch and roll performances may be degraded for angles exceeding this figure At a location that is preferably perfectly clear of any obstacles in order to avoid hindrance of the Transceiver by fixed obstacles landing gear fuel tanks other antennae The distance between antennae sh...

Page 54: ...ounted from below in the lower part of the aircraft fuselage Antennae connectors must imperatively face forwards for the front antenna rearwards for the rear antenna Each antenna bears a red ink marking to indicate assembly orientation into aircraft Figure 201 ANT 140A ANTENNAE SEPARATION AND ORIENTATION ...

Page 55: ...eed to Functional Test the ARINC output message shall contain an altitude of 0 ft exactly Check that the coupling to other systems is correct B IN FLIGHT TESTS Sensitivity versus altitude check that the loss track altitude of the radio altimeter is greater than 5000 ft No Computed Data indication on ARINC output message Sensitivity versus attitude Check that the track is not loss for ROLL and PITC...

Page 56: ...MIL reference designates a connector including the main external characteristics 37 pins Shell size 15 Drab olive green finish Male contacts Normal polarization B GROUNDING AND BONDING The bottom part of the chassis is used as mechanical and electrical contact with the aircraft fuse lage Figure 202 shows the surfaces providing bonding contact between the Transceiver chassis and the platform struct...

Page 57: ...ired to handle or carry the Transceiver due to its small and pre hensile dimensions and its lightweight The Transceiver is equipped with caps which are plugged on each I O connector and which protect them from ESD sand and dust 5 EQUIPMENT INPUTS OUTPUTS A MAIN CONNECTOR J1 Socket Contact Contact Gauge Input I Output O Signal Name Wire Type Installation Require ments 1 22D Reserved 2 22D Reserved ...

Page 58: ...Configurable input signal 17 22D I P28V_1 Twisted see note 1 Power supply input 1 18 22D I P28V_2 Twisted see note 1 Power supply input 2 19 22D I RET28V_2 Twisted see note 1 Power supply return 2 20 22D I AID_P Simple as short as possible see note 4 Configurable input signal 21 22D Reserved 22 22D Reserved 23 22D I AID 0 Simple as short as possible see note 4 Configurable input signal 24 22D I AI...

Page 59: ... 31 22D Reserved 32 22D Reserved 33 22D O E_GND Electrical reference ground 34 22D I SDI_SEL Simple as short as possible see note 4 Configurable input signal 35 22D Reserved 36 22D Reserved 37 22D Reserved Note 1 Twisted wire type Note 2 Twisted Shielded wire type shield shall be terminated at the connector EMI backshell Note 3 ARINC data bus A2 12 5 Khz ...

Page 60: ... The M_GND reference signal must be connected to the mechanical reference ground of the carrier B RX TX ANTENNA Connector Contact Contact Gauge Input I Out put O Signal Name Wire Type Installation Requirements RX TNC I RX Coaxial cable TX TNC O TX Coaxial cable Length according to AID selection ...

Page 61: ...NTERCONNECTIONS AHV1600 TRANSCEIVER INTERNAL DEVICES TX429_HI_1 TX429_LO_2 TX429_LO_1 FCT_TST TST_INH TX429_HI_2 P28V_1 P28V_2 RET28V_2 AID_P AID0 AID1 RET28V_1 E_GND SDI_SEL ARINC 429 LINE ARINC 429 LINES 28Vdc first 28Vdc second 28Vdc RETURN second 28Vdc RETURN first AID2 ...

Page 62: ......

Page 63: ...MODE When on ground or flying in the system range the radar altimeter shall output the helicopter height above the ground with the specified accuracy Alarms shall be out of view The status matrix of ARINC 429 words shall indicate the Normal Operation status 4 OUT OF RANGE OPERATION When the helicopter is flying outside the system range above 5000 ft the radar altimeter shall enters in the loss of ...

Page 64: ...heli copter on ground or flying in the equip ment operating range Check antennae installation Change transceiver 7 OPERATIONAL LEVEL MAINTENANCE TASK The Operational level maintenance task consists in removing and replacing the transceiver LRU in case of failure A REMOVING THE TRANSCEIVER Recommended removing flowchart power off the transceiver disconnect the three cables from front panel remove t...

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