AR 10011695 Operating And Service Manual Download Page 15

Approved for public release by AR RF/Microwave Instrumentation 

030612

 

160 School House Road Souderton, PA 18964-9990 • 215-723-8181 • www.ar-worldwide.com 

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Model DC7144A, AM1 

DC7144, M1 through M3 

Dual Directional Coupler 

400 Watts CW 

0.7GHz–4.2GHz 

The Model DC7144A is a dual directional coupler with excellent frequency range and power handling capability.  The 

wide range assures flexibility in coupling medium power amplifiers to oscilloscopes, voltmeters, power meters, spectrum 
analyzers and other measuring instruments.  The dual directional design allows the user to monitor both forward and 
reflected power, a much needed characteristic in RF susceptibility testing for amplifier overdrive protection, field control 
and load protection.  Low insertion loss allows efficient coupling to the load. 
The Model DC7144A is uniquely suited for use with our “S” series microwave power amplifiers, other amplifiers operating 
within this frequency and power range, and our PM2003 power meter. 

SPECIFICATIONS 

FREQUENCY RANGE ............................................ 0.7–4.2GHz 
POWER (Maximum Watts) ..................................... 400 Watts CW 

4K Watts Peak, @ 5% duty cycle, 
30

sec pulse 

COUPLING FACTOR ............................................ 40 dB 

 1.3 dB (includes flatness) 

FLATNESS ............................................................ 

 0.8dB 

DIRECTIVITY 
 Typical 

........................................................... 

19 

dB 

 Minimum 

....................................................... 

15 

dB 

INSERTION LOSS  ................................................ 0.4 dB maximum 
IMPEDANCE (Main Line) ....................................... 50 ohms, VSWR 1.25:1 maximum 
CONNECTORS .................................................... See Model Configuration 
WEIGHT ............................................................... 0.24 kg (.525 lbs) 
SIZE (WxHxD) ....................................................... 2.35 x 5.84 x 19.0 cm (0.925 x 2.3 x 7.48 in) 
EXPORT CLASSIFICATION ..................................... EAR99 

MODEL CONFIGURATION 

Model Number 

Main Line
J1/J2 

Coupled Connector 
J3/J4 

DC7144A

N(M)/N(F)

N(F)/N(F)

DC7144AM1*

N(M)/N(F)

N(F)/N(F)

DC7144

N(F)/N(F)

SMA(F)/SMA(F)

DC7144M1

N(F)(NF)

N(F)/N(F)

DC7144M2*

N(F)(NF)

SMA(F)/SMA(F)

DC7144M3*

N(F)(NF)

N(F)/N(F)

*Uses A2LA Calibration

Summary of Contents for 10011695

Page 1: ...Operating and Service Manual DC7144A Model 10011695 Part Number Serial Number 160 School House Road Souderton PA 18964 215 723 8181 Fax 866 859 0582 www arworld us...

Page 2: ......

Page 3: ...riction of the use of certain hazardous substances in electrical and electronic equipment recast RECYCLING WEEE DIRECTIVE 2012 19 EU OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 4 July 2012 on was...

Page 4: ......

Page 5: ...clearance on all vented sides of the equipment to permit the airflow required for proper ventilation Do not restrict airflow into the equipment by blocking any vents or air intakes Restricting airflow...

Page 6: ...a assembly may be heavy requiring two persons to lift Use caution when installing or removing unit Follow all equipment setup and lifting instructions specified in this document Ensure connectors are...

Page 7: ...von 10 2 cm 4 in auf allen bel fteten Seiten des Ger ts ein um eine ausreichende Luftzirkulation zu gew hrleisten Beintr chtigen Sie den Luftstrom des Ger ts nicht indem Sie L ftungs ffnungen oder de...

Page 8: ...allen in diesem Dokument angegebenen Anweisungen zur Anbringung Stellen Sie sicher dass alle Anschl sse f r den beabsichtigten Betrieb geeignet sind Informationen zu den Anschl ssen erhalten Sie im Be...

Page 9: ...tilation Ne limitez pas le flux d air allant dans l quipement en bloquant tout vent ou entr e d air La restriction du flux d air peut endommager l quipement causer des coupures intermittentes ou des d...

Page 10: ...dent lorsque vous installez ou retirez l unit Respectez toutes les instructions concernant l installation et le levage de l quipement indiqu es dans ce document Assurez vous que les connecteurs sont a...

Page 11: ...is voor goede ventilatie mogelijk te maken Belemmer de luchtstroom in het apparaat niet door ventilatieopeningen of luchtinlaten te blokkeren Het belemmeren van de luchtstroom kan leiden tot schade a...

Page 12: ...nstellen en optillen van de apparatuur die in dit document worden vermeld Zorg ervoor dat de connectoren geschikt zijn voor de beoogde werking De connectoren worden gespecificeerd in de gebruikershand...

Page 13: ...ions Operation of the Model DC7144A is quite simple The input signal is fed into the N male connector J1 marked INPUT and the output is taken from the N female connector J2 marked OUTPUT Forward coupl...

Page 14: ...Model DC7144A 2 Rev...

Page 15: ...otection Low insertion loss allows efficient coupling to the load The Model DC7144A is uniquely suited for use with our S series microwave power amplifiers other amplifiers operating within this frequ...

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Page 17: ...Model DC7144A Rev 5...

Page 18: ...Model DC7144A 6 Rev...

Page 19: ...cover If the security label is removed and or cut the warranty of the module will be voided Vacuum tubes in the L series amplifiers traveling wave tubes in TWT amplifiers and power heads will be free...

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