AR 25U1000 Operating And Service Manual Download Page 18

RATED OUTPUT POWER: 2.5 watts minimum 

INPUT FOR RATED OUTPUT:  1.0 mW Max 

POWER OUTPUT @ 3dB COMPRESSION: 
Typical: 3.0 watts, Minimum: 2.5 watts 

POWER OUTPUT @ 1dB COMPRESSION: 
Typical: 2.5 watts, Minimum: 2.0 watts  

FLATNESS:  ±0.8 dB typical, ±1.0 dB maximum 

FREQUENCY RESPONSE: 10kHz-1000 MHz instanta-
neously 

GAIN (at maximum setting): 33 dB minimum 

GAIN ADJUSTMENT (Continuous Range) : 20 dB mini-
mum 

INPUT IMPEDANCE: 50 ohms, VSWR 2.0:1 maximum 

OUTPUT IMPEDANCE: 50 ohms nominal 

MISMATCH TOLERANCE: 100% of rated power with-
out foldback. Will operate without damage or oscilla-
tion with any magnitude and phase of source and load 
impedance.  See Application Note #27. 

MODULATION CAPABILITY: Will faithfully reproduce 
AM, FM, or Pulse modulation appearing on input sig-
nal. 

THIRD ORDER INTERCEPT: 45 dBm typical 

NOISE FIGURE: 8 dB maximum, 6 dB typical 

HARMONIC DISTORTION: Minus 20 dBc maximum at 
2 watts 

SPURIOUS: Minus 73 dBc typical 

PRIMARY POWER (selected automatically):  
90-264 VAC, 50/60Hz, 50 watts 

CONNECTORS: 
RF Input: N female, front 
RF Output: N female, front 

COOLING: Forced air (self contained fans) 

WEIGHT: 4.5 kg (11 lbs) 

SIZE (W x H x D): 26.0 x 11.4 x 28.2 cm (10.25 x 4.5 
x 11.1 in) 

EXPORT CLASSIFICATION: EAR99 

 

Page 2 

Specifications 

2.5U1000 



2.5 Watts CW  



10kHz–1000MHz  

Ordering Options 

Contact your AR RF/Microwave Instrumentation Sales Associate for specific model configura-
tion pricing. 

Summary of Contents for 25U1000

Page 1: ...Operating and Service Manual 2 5U1000 Model 10043261 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: ...y Requirements for Electrical Equipment for Measurement Control and Laboratory Use Part 1 General Requirements UL 61010 1 Issued 2012 05 11 Ed 3 Safety Requirements for Electrical Equipment for Measur...

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: ...N 7 3 1 Introduction 7 3 2 Amplifier Section 7 3 2 1 A1 2W Pre Amplifier Assembly Schematic No 10041189 10041352 10041055 7 3 3 Power Supply 8 4 MAINTENANCE 9 4 1 General Maintenance Information 9 4 2...

Page 14: ......

Page 15: ...nt testing wattmeter calibration EMI susceptibility testing use as a driver for frequency multipliers and high power amplifiers and as an RF source for magnetic resonance imaging studies 1 2 POWER SUP...

Page 16: ...Model 2 5U1000 2 Rev A...

Page 17: ...ftware are controlled for export in accord ance with the U S Export Administration Regu lations Diversion contrary to U S law is pro hibited The Model 2 5U1000 is a solid state self contained air cool...

Page 18: ...and phase of source and load impedance See Application Note 27 MODULATION CAPABILITY Will faithfully reproduce AM FM or Pulse modulation appearing on input sig nal THIRD ORDER INTERCEPT 45 dBm typical...

Page 19: ...Page 3 2 5U1000 2 5 Watts CW 10kHz 1000MHz Graphs...

Page 20: ...all 800 933 8181 Direct to Service call 215 723 0275 or email service arworld us For Faxing Orders 866 859 0582 Orders Only Please info arworld us Approved for public release by AR RF Microwave Instru...

Page 21: ...unding to the power mains CAUTION The Model 2 5U1000 will provide 100 of rated power without foldback into a mismatched load The amplifier will operate without damage or oscillation with any magnitude...

Page 22: ...U1000 6 Rev A 2 3 POWER ON SEQUENCE 1 Connect input signal to INPUT connector 2 Connect load to OUTPUT connector 3 Activate power switch to ON position A green indicator light will light when power is...

Page 23: ...The Pre Amplifier PWB Assembly consists of a variable attenuator circuit Q1 Q4 a gain stage U4 a resistive splitter R13 R14 R16 an RF power detector U6 and associated control circuitry The overall ga...

Page 24: ...PLY Refer to Schematic Diagram 10043442 PS1 supplies 15 VDC at 2 5 amps and 15 VDC at 1 amp PS1 is a switching supply that automatically sets the AC input circuits to the correct connections for the l...

Page 25: ...ument with a minimum of down time a systematic approach can greatly simplify and speed up the repair Due to the importance of the amplifier s alignment when failure is caused by breakdown of any of th...

Page 26: ...own on the schematics Before measuring circuit voltages first verify that the voltage to the circuits are correct Model 2 5U1000 troubleshooting symptoms and remedies are described in the sections tha...

Page 27: ...Is the coax cable defective 4 Check the following voltages on the Power Supplies If any of the voltages are out of tolerance correct the problem before further troubleshooting P2 1 5V 0 4V P3 1 24V 0...

Page 28: ...m input is shown in Figure 4 1 The actual gain may vary considerably from that shown in Figure 4 1 but should be 34 0 dBm Figure 4 1 4 4 SERVICING ETCHED CIRCUIT BOARDS When soldering leads use a hot...

Page 29: ...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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