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Issue No: C 

Page: 3 

 

Ref: ARTR-ASUM-7001 

Copyright © 2017 IMT Ltd, trading as Vislink 

 

The RF Radiation Power Density limit figure recommended by Vislink is based upon guideline 
levels published in: 

a.

 

IEEE standard C95.1 1999 - IEEE Standard for Safety Levels with respect to Human 
Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz. 

Guidelines for Limiting Exposure to Time-varying Electric, Magnetic & Electromagnetic Fields 

(up to 300 GHz) published in 1998 by the Secretariat of the International Commission on 
Non-Ionizing Radiation Protection (ICNIRP). 

Both documents define guideline RF power density limits for "Controlled" and "Uncontrolled" 
environments.  An uncontrolled environment is defined as one in which the person subjected to 
the RF radiation may be unaware of and has no control over the radiation energy received.  The 
uncontrolled environment conditions can arise, even in the best regulated operations and for this 
reason the limits defined for the uncontrolled environment have been assumed for the Vislink 
recommended limit. 

Documents a) and b) also show the RF power density guidelines to be frequency dependent.  
Different power density / frequency characteristics are presented in the two documents.  To avoid 
complexity and to avoid areas of uncertainty, Vislink recommends the use of a single power 
density limit across the frequency range 100 kHz to 300 GHz.  The 1w/m² power density limit we 
recommend satisfies the most stringent of the guidelines published to date. 

NOTE: The IICNIRP document is freely available for download from the internet at 

www.icnirp.de/emfgdl (PDF file) the IEEE standard is available on loan from Essex County 
Library on payment of a search fee. 

 

Summary of Contents for ARTR

Page 1: ... UK Telephone 44 0 1442 431300 Facsimile 44 0 1494 775356 Email sales vislink com Website www vislink com Company Registered in England Wales no 10523708 VAT registration no GB 260 012 169 Registered Office Waterside House Earls Colne Business Park Colchester Essex CO6 2NS UK ...

Page 2: ...s supplied on the express terms that it is to be treated as confidential and that it may not be copied used or disclosed to others for any purpose except as authorized by Vislink NOTE Notes are used to convey additional information CAUTION Cautionary notes are given where potential equipment damage could occur WARNING Warnings are shown where there is potential for personal danger or death This wa...

Page 3: ...dification A 09 2014 First release of document B 05 2016 Template update updated look and feel and rebrand No technical changes C 11 2017 Added new Figure 2 3 to included extended length version actuator arm specification ARTR ASSY 7011 Updated company information Included standard safety section ...

Page 4: ...eviations 33 Figure 2 1 ARTR Overview 6 Figure 2 2 ARTR Standard Length Version Specification 7 Figure 2 3 ARTR Extended Length Inverted Version Specification 8 Figure 3 1 ARTR Overview Cover Removed 9 Figure 3 2 AARTR ASSY 5003 Actuator Arm Remote Control Unit 10 Figure 3 3 ARTR ASSY 5002 Terminal Box 10 Figure 4 1 ARTR Remote Unit Cable Assembly 12 Figure 4 2 ARTR Remote Unit Cable Assembly 13 F...

Page 5: ...tances individual components must not be cut broken apart incinerated or chemically processed In the case of Beryllium Oxide a white ceramic material the principal hazard is from the dust or fumes which are carcinogenic if ingested inhaled or entering damaged skin Please consult your local authority before disposing of these components CAUTION Tantalum Capacitors When subjected to reverse or exces...

Page 6: ...d and are from time to time re issued with revised guidelines For Vislink use a maximum power density limit w of 1w m is to be applied when calculating minimum safe working distances Appendix A refers WARNING Any transmitting equipment radiating power at frequencies of 100 kHz and higher has the potential to produce thermal and athermal effects upon the human body To be safe Operators should not s...

Page 7: ...he RF radiation may be unaware of and has no control over the radiation energy received The uncontrolled environment conditions can arise even in the best regulated operations and for this reason the limits defined for the uncontrolled environment have been assumed for the Vislink recommended limit Documents a and b also show the RF power density guidelines to be frequency dependent Different powe...

Page 8: ...Issue No C Page 4 Ref ARTR ASUM 7001 Copyright 2017 IMT Ltd trading as Vislink This page is intentionally unused ...

Page 9: ... accordance with British Civil Airworthiness Requirements BCAR to operate at speeds up to 120knots with 100mm diameter and 200mm long antenna lowered NOTE The maximum operating speed of the ARTU is dependent on the type of microwave antenna fitted The maximum operating speed of the ARTU must be confirmed with the manufacturer if a larger antenna is intended to be used See appropriate DCIS The ARTU...

Page 10: ...Issue No C Page 6 Ref ARTR ASUM 7001 Copyright 2017 IMT Ltd trading as Vislink Figure 2 1 ARTR Overview ...

Page 11: ...Issue No C Page 7 Ref ARTR ASUM 7001 Copyright 2017 IMT Ltd trading as Vislink Figure 2 2 ARTR Standard Length Version Specification ...

Page 12: ...Issue No C Page 8 Ref ARTR ASUM 7001 Copyright 2017 IMT Ltd trading as Vislink Figure 2 3 ARTR Extended Length Inverted Version Specification ...

Page 13: ...Issue No C Page 9 Ref ARTR ASUM 7001 Copyright 2017 IMT Ltd trading as Vislink Figure 3 1 ARTR Overview Cover Removed ...

Page 14: ...Issue No C Page 10 Ref ARTR ASUM 7001 Copyright 2017 IMT Ltd trading as Vislink Figure 3 2 AARTR ASSY 5003 Actuator Arm Remote Control Unit Figure 3 3 ARTR ASSY 5002 Terminal Box ...

Page 15: ...17 IMT Ltd trading as Vislink Chemical testing Bladder Material Hydrin 50 ASTM D 2000 classification CH DK DJ Retractor Cover Carbon Fibre Pre Preg Resin MTM58B Service Temperature up to 120 C MTM58B is self extinguishing when tested to FMV5302 ISO3795 ...

Page 16: ...Issue No C Page 12 Ref ARTR ASUM 7001 Copyright 2017 IMT Ltd trading as Vislink Figure 4 1 ARTR Remote Unit Cable Assembly ...

Page 17: ...Issue No C Page 13 Ref ARTR ASUM 7001 Copyright 2017 IMT Ltd trading as Vislink Figure 4 2 ARTR Remote Unit Cable Assembly ...

Page 18: ...Issue No C Page 14 Ref ARTR ASUM 7001 Copyright 2017 IMT Ltd trading as Vislink Figure 4 3 ARTR Remote Power Cable Assembly ...

Page 19: ...Issue No C Page 15 Ref ARTR ASUM 7001 Copyright 2017 IMT Ltd trading as Vislink Figure 4 4 Actuator Sensor Cable Assembly ...

Page 20: ...Issue No C Page 16 Ref ARTR ASUM 7001 Copyright 2017 IMT Ltd trading as Vislink Figure 4 5 Actuator Feed Cable Assembly This page is intentionally unused ...

Page 21: ...Issue No C Page 17 Ref ARTR ASUM 7001 Copyright 2017 IMT Ltd trading as Vislink Figure 4 6 ARTR ASSY 5004 Cover Assembly This page is intentionally unused ...

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Page 23: ...actor Unit is certified by NOTE Each individual end user to aircraft integrator is finally responsible for obtaining local airworthy certificate for the ARTU on their specific aircraft The effect of the retractor unit on the structure of the helicopter is negligible since the retractor unit is lightweight 5 5kg and is mounted externally on the skid of the helicopter ...

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Page 25: ... ARTU RENDERING IT UNSERVICEABLE a Check the wire locking of bolts and clamp locking nuts at regular intervals It is suggested to include this check as part of the normal aircraft pre flight procedures b Check the skid clamps for cracks bending and damage c Check the cables and connectors for damage d Clean the unit with a damp cloth Do not oil the main spindle or bell crank since the bearing bush...

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Page 27: ...bly f The Antenna Remote Control Unit is reverse polarity protected g The retractor unit is externally mounted and presents no hazard to the occupants and crew of the aircraft CAUTION Do not use the sacrificial arm assembly as a carry handle CAUTION To prevent damage to the assembly ensure the arm is suitably chocked and tied before you attempt to transport it WARNING To avoid personal injury ensu...

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Page 35: ...unit D GND E 28V DC Aircraft supply F Limit Switch Common Opto isolated FET drive level via 0 5A resettable fuse Becomes GND when either end travel switch detected This line will toggle at 1Hz during motor travel And 10Hz if a positioning error has been detected Table B 1 Actuator Unit Pinout Table 6W Chassis Connector AMP MS3470W 10 6S 6W Mating cable plug AMP MS3475W 10 6P 3W Chassis Connector A...

Page 36: ...ue No C Page 32 Ref ARTR ASUM 7001 Copyright 2017 IMT Ltd trading as Vislink NOTE You must provide adequate 28vdc protection if the hand controller is not being used Figure B 1 Hand Control Wiring Diagram ...

Page 37: ...017 IMT Ltd trading as Vislink Abbreviation Meaning ARTU Antenna Retractor Unit BCAR British Civil Airworthiness Requirements LEDs Light Emitting Diodes MOD Ministry of Defence EASA European Aviation Safety Agency DCIS Design Change Instruction Sheet ...

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