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DPA3 Digital Power Amplifier User Manual

Specifications

Issue No: 01A

Page: 10

Ref: DPA3-ASUM-7xxx

Copyright © 2017 Vislink plc

This page is intentionally unused.

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Summary of Contents for DPA3

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: ...ark content from external companies from their websites trademark pages etc NOTE Notes show to convey additional information CAUTION Cautions show where potential equipment damage could occur WARNING Warnings show where there is potential for personal danger or risk of death Read all warnings and understand them before carrying out work on any equipment This includes peripherals and any related eq...

Page 3: ...A Page iii Ref DPA3 ASUM 7xxx Copyright 2017 Vislink plc Version Date Modification Updated By 1 03 08 2015 First release of document A Jackson 01A 15 02 2017 Updated to new template No technical change R Swindells ...

Page 4: ...nsity Limits 6 2 Introduction 7 3 Specifications 9 4 Monitoring and Control Functions 11 4 1 Front Panel Layout 11 5 Connector and Pin Outs 13 5 1 Multiway Mil C Connector 13 5 2 RF Input and Output 13 5 3 Fan Power 13 6 Installation Requirements 15 6 1 Handling Precautions 15 6 2 Installation 15 Figure 4 1 Front Panel Layout 11 Table 3 1 Specifications 9 Table 4 1 Front Panel Description 11 Table...

Page 5: ...cal authority before disposing of these components CAUTION Tantalum Capacitors When subjected to reverse or excess forward voltage ripple current or temperature these components may rupture and could potentially cause personal injury CAUTION This system contains MOS devices Ensure you use adequate Electro Static Discharge ESD precautions to prevent accidental damage The safe working distance from ...

Page 6: ... Secretariat of the International Commission on Non Ionising 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 ca...

Page 7: ...ansmitters to provide increased output power Typical applications include mobile transmitters such as helicopter downlinks The DHPA operates over frequencies between 1 3 to 7GHz in bands with a typical factory set bandwidth of 400MHz and a nominal output power of up to 20W The amplifiers feature excellent linearity as required for COFDM digital modulation The unit may be powered from 20VDC to 30VD...

Page 8: ...DPA3 Digital Power Amplifier User Manual Introduction Issue No 01A Page 8 Ref DPA3 ASUM 7xxx Copyright 2017 Vislink plc This page is intentionally unused ...

Page 9: ...0Ω in out Spurious Better than 60dBc Gain Flatness 1dB over frequency range Gain vs Temperature 1dB over temperature range Third Order Intercept 62dBm Input VSWR 1 4 1 RF Input Connector N Type RF Output Connector N Type Power Connector MIL C Specification Monitoring LEDs DC present RF present Load fault Over temperature Power Requirement 20 to 30VDC at 150W typical Weight 2 6Kg Environmental Safe...

Page 10: ...DPA3 Digital Power Amplifier User Manual Specifications Issue No 01A Page 10 Ref DPA3 ASUM 7xxx Copyright 2017 Vislink plc This page is intentionally unused ...

Page 11: ...Section 5 1 The unit has no control functions other than on off through the application of DC power via the MIL spec connector Figure 4 1 Front Panel Layout Item Description Notes VSWR LED Indicates fault on RF output Check load is 50Ω RF LED Output RF present DC LED DC input power present TEMP LED PA temperature exceeds 60 C Check fan operation CIRCUIT BREAKER DC input over current trip Press to ...

Page 12: ...DPA3 Digital Power Amplifier User Manual Monitoring and Control Functions Issue No 01A Page 12 Ref DPA3 ASUM 7xxx Copyright 2017 Vislink plc This page is intentionally unused ...

Page 13: ...m open collector C NC 20 30Vdc ADL MET Option Only D NC 20 30Vdc ADL MET Option Only E NC 20 30Vdc ADL MET Option Only F NC 20 30Vdc ADL MET Option Only G Forward power alarm open collector H NC J 20 30Vdc STD OPTION K 0 V L 0 V M 20 30Vdc STD OPTION Table 5 1 Amphenol 62GB 16F14 12SN Connector Overview Connector Type N type 50Ω The fan derives power internally and is always on when the unit has p...

Page 14: ...DPA3 Digital Power Amplifier User Manual Connector and Pin Outs Issue No 01A Page 14 Ref DPA3 ASUM 7xxx Copyright 2017 Vislink plc This page is intentionally unused ...

Page 15: ... RF cables and before inspecting damaged cables or antennas WARNING Avoid standing in front of antennas fed by high power amplifiers and never look into the open end of a waveguide or cable where RF power may be present WARNING Wipe off any water or fluids immediately WARNING Do not open or modify the assembly 1 Refer to Section 6 1 above regarding handling precautions 2 Secure the unit using the ...

Page 16: ...DPA3 Digital Power Amplifier User Manual Installation Requirements Issue No 01A Page 16 Ref DPA3 ASUM 7xxx Copyright 2017 Vislink plc This page is intentionally unused ...

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