Since the APS-504 variant used on the Tracker is not known at this time, existing information will be posted here.

 The AN/APS-504(V)5 Radar is an X-Band, Pulse Compression, Frequency Agile System with digital signal processing and scan conversion, which operates between 8.9 and 9.4 GHz and furnishes the operator with radar video up to 200 nm and 360 degrees in azimuth.

TECHNICAL CHARACTERISTICS OF THE APS-504(V)2

APS-504 (V)2 ANTENNA GROUP

Pedestal
Type: Fan beam with elevation stabilization
Tilt control: ± 16° (manual)
Stabilization: up to ± 20° in pitch and roll with zero tilt
Rotation Rate: 12 and 30 RPM (12 RPM in sector scan)
Sector scan: 30° to 180° centered on any angle, aircraft or north stabilized

ANTENNA

Gain: 32dB nominal
Polarization: Horizontal
Beam Width: 2.3° (-3 dB) in azimuth
7° (-3 dB) in elevation
Side Lobes: -18 dB
Antenna Assembly Weight: 36.5 lbs

APS-504 (V2) RECEIVER TRANSMITTER UNITS

Transmitter Frequency: 9,375 MHz
Power Output: 90 kW peak minimum
Transmit Pulse Width: 0.5m s or 2.4m s
PRF: 200, 400, 600, 1200 or 1600 Hz
System Noise Figure: 5 dB
IF Frequency: 60 MHz MHz
Clutter rejection: STC, FTC
Display ranges: 3-20, 50, 100, 250 NM
Weight: 85.5 lbs.

Primary Power Requirement for Antenna and R/T: 111 to 119V, 380 to 420 Hz, three phase, 1000VA
 

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Credits and References:

1) General Tansco  APS-504  http://www.generaltransco.com/aps504.html

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Feb 22/10