Subscribe to our newsletter

Ranger R20SS

Long-Range, High Resolution Target Detection Radar

View Datasheet > Ranger R20SS


The FLIR Ranger® R20SS is a ground and coastal surveillance radar specifically designed to detect and track personnel and vehicles within a 20-km range. With its solid-state electronic scanning capability and fast 2-Hz refresh rate, the Ranger R20SS delivers best-in-class target detection and acquisition performance. Because it operates in the X-band, R20SS is minimally affected by adverse weather or precipitation. It scans a +/-90° area twice per second with low false alarm rate.

Additional information

Operating Frequency

X Band

Minimum Detection Velocity

> 0.1 m/s min, Vehicles, personnel, rubber rafts, boats

Target Velocity

0.1 to 44 m/s

Number of tracks

Up to 512 simultaneous

Range Accuracy

± 3 m (1 sigma)

Scan Rate

2 Hz (90 deg sector)


90° AZ, 5° EL in sector mode, 360° AZ, ± 30° EL in scan mode (with optional pan/tilt device)

Elevation Control

Yes with optional Pan/Tilt

Input Power

21-42 VDC


Ethernet, wireless, fiber


Yes (ICD-0100 compatible)

Mask Zone(s)

Unlimited polygons


Radar only: 14.7h x 29.6w x 6.0d (inches), 37h x 75w x 14d (cm) Radar with pan/tilt: 29.4h x 29.6w x 6.6d (inches), 75h x 75w x 17d (cm)


40 lbs (18.2 kg) – radar 26.4 lbs (12 kg) – pan/tilt

Power Consumption (nominal)

245 Watts (radar) ≤ 30 Watts (pan/tilt)

Operating Range

20 – 30, 000 m 20 – 60, 000 m (ext range)*

Detection Range:Personnel Walking (1 m2 RCS)Rubber Raft (1 m2 RCS, ss 3)Patrol Vessel (10 m2 RCS, ss 4)Vehicles, Vessels ( ≥ 30 m2 RCS)Vehicles, Vessels ( ≥ 10,000 m2 RCS)

Up to 12, 000 m Up to 12, 000 m Up to 20, 000 m Up to 28, 000 m Up to 55, 000 m (ext range)

False Alarm Rate

Very Low


-40° to +60°C (operating), -40° to +70°C (storage)


Up to 100%

Weather Sealing

IP 67 Rating – radar. IP 66 – pan/tilt

Mil Spec

Complies with MIL-STD-810G and MIL-STD-461F


> 28, 000 hrs – radar. > 50, 000 hrs – pan/tilt

Please leave your details below so we can get in touch with you.

Contact Info


Hi there!

Click one of our representatives below to chat on WhatsApp, send us an email to or give us a call on +27 (0) 11 794 7834