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Model 527

MODEL 527 Radar Signal Simulator

Model 527


lab model 527

The Model 527 Radar Signal Simulator is designed to stimulate radar warning receiver (RWR) systems on operational aircraft through free-space radiation testing. It assures aircrew confidence through flight line verification of the operational status of an aircraft and its installed RWR systems.

  • Stimulates RWRs on operational aircraft through free-space radiation testing
  • Handheld and portable with an extensive battery life
  • Compatible with JSECSTand A2PATS®, enhancing vertical test capability and minimizing maintenance downtime
  • Compatible with a variety of platforms
  • Fully programmable, advanced modulations including circular, sector, spiral, conical and others
  • Ruggedized and laboratory versions available
  • Sufficient power to cover multiple receivers simultaneously 

Additional Features:

  • Gross Weight 
    • Less than 27 lbs with 2 batteries (12.2 kg)


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Model 527 can perform end-of-runway and walk-around testing at extended distances (over 200 ft) from the aircraft. Antennas and transmission paths mounted high on the aircraft can be verified without direct coupling. Multiple receivers can be tested simultaneously. Our advanced threat modeling software allows threat emitters to be developed offline and stored on removable PCMCIA media, enabling the system itself to be unclassified when powered down with disk removed. The Model 527 supports up to eight simultaneous, multiplexed emitters, allowing the development of complex test cases and the verification of threat priority in the RWR system. Once emitters or groups of emitters are developed, test personnel can progress through them easily.

Frequency Range

500 MHz to 18 GHz (base); 28 GHz to 40 GHz millimeter wave (mmwave); 10 MHz to 500 MHz (optional)

Number of Emitters

Eight, fully independent in frequency, pulse width, pulse repetition and scan model

Operating Time

Greater than six hours with two batteries installed

Minimum Pulse Width

50 ns

Frequency Accuracy

+/-0.001 percent for single output; +/-5 MHz for multiple frequencies (base)
+/-0.002 percent for single output; +/-20 MHz for multiple frequencies (mmwave)

Frequency Switching Speed

One μsec

Direct Connect Power

+10 dBm via threaded Neill-Concelman, or TNC, output (base)


-40 to 55°C (AC power)
-20 to 55°C (battery power)

Radiated Power

-35 dBm minimum at 40 feet (base); -42 dBm at 40 feet (mmwave)


Less than 27 lb (12.2 kg) with two batteries, less than 25 lb (11.4 kg) with one battery

Operating Power

BB-2590/U battery (one or two), or 110 to 240 V
alternating current, 50 to 60 Hz


Our Lab Model 527™ RF simulator is a compact, high fidelity system designed for electronic combat systems testing. Sized for a 19-inch rack to accommodate a laboratory environment, the Lab Model 527 also can be utilized as an RF generation subsystem in a high-power system.

Frequency Range

Fully tunable for continuous-wave and pulsed emitters from 10 MHz to 18 GHz, and from 28-40 GHz

Number of Emitters

Eight, fully independent in frequency, pulse width, pulse repetition and scan model

Minimum Pulse Width

50 ns

Frequency Accuracy

± 0.002 percent single frequency output; ± 20 MHz for multiple frequency output

Minimum Pulse Repetition

One μsec

RF Output Power

> 0 dBm direct connect, approximately 50 dBm radiated


Operating: 0 to 40°C
Non-Operating: -20 to 70°C

Relative Humidity

80 percent ± 5 percent at 31˚C, decreasing linearly to 50 percent at 40˚C (non-condensing)


Less than 30 lb

AC Power

50-60 Hz; 90-264 V using a lab-standard cable equipped with a three-prong IEC-320 C14 for connection to 60 Hz, 120 V alternating current (VAC) outlets

Maximum Current Draw

1 amp at 115 VAC or 0.5 amp at 230 VAC



Product Name

Part Number

Model 527 Radar Signal Simulator (w/ MMW)

NSN: 6940-01-563-1116

Model 527 with MMW and PRTS Adaptable 


Model 527 without MMW


Model 527 without MMW and PRTS Adaptable


Laboratory Model 527 (Front)


Laboratory Model 527 (Rear)


Laboratory Model 527 (PRTS)



*Specifications subject to change without notice.

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