The Adepti Nederlands
76N6 Clam Shell
76N6 Clam Shell on its mast · Photo: ShinePhantom · CC BY-SA 3.0 · Wikimedia Commons
Radar · Acquisition (SAM)

76N6 Clam Shell

76N6 (Clam Shell)
High RU

Low-altitude acquisition radar of the S-300P on a tall mast

I-band FMCW radar designed to find low-flying targets with a small radar signature, such as cruise missiles. It is usually mounted on the 40V6M mast of 24 to 39 m so it can see over terrain and buildings, and feeds target data to the S-300P fire control. It uses continuous wave, which makes it harder to detect than a pulse radar.

Learn more in the AirDefense Academy →

Dimensionsfor imagery analysis

Mount
Semi-trailer behind a MAZ-537; usually on a 40V6M mast
Antenna / mast
Mast 24–39 m
Dimension source
US Army TRADOC Worldwide Equipment Guide (ODIN)

General

Role
Acquisition of low flyers and cruise missiles
Belongs to
SA-10 / SA-20 (S-300P family)
Band
I band (8–10 GHz), FMCW
Emplacement
≈ 1 hour with mast

Performance

Detection
Target at 500 m: ≈ 49 NM; at 1,000 m: ≈ 65 NM
Smallest target
0.02 m²
Power
1.4 kW average, 55 kW peak

Threat

RWR
Difficult — low-power continuous wave
Countermeasure
Low flying helps little because of the mast; SEAD on the mast, stand-off
Threat level
High — designed against low flyers

News archive 0

Analysed reports from the RU Mil Tracker about this system, newest first. Archive since 2026-07-17.

No reports linked yet.

Discuss this system on the forum →

All information presented across The Adepti platform is drawn from open, publicly available sources and is offered for educational purposes only — verify it independently before relying on it for operational use.