Predel-E (in Russian: Предел-Э) is a Russian military over-the-horizon radar system shown since 2017, designed to detect ships in coastal areas.

It was developed by Concern Morinformsystem-Agat, with at least one variant designed by NPP Salyut. Predel-E relies on a phenomenon known as atmospheric ducting, where certain meteorological conditions create a waveguide at a height of up to several dozen meters above the surface, which significantly increases the range of radar signals above 3 GHz, allowing Predel-E to detect targets at a distance of over 400 km, according to the manufacturer. Predel-E is designed to support the K-300P Bastion-P missile system and other systems.

Overview

In August 2023, Ukraine’s military announced that it had destroyed a Russian coastal PREDEL-E station in the Kherson region, stating it to have been worth around $200 million.

According to a tweet posted by OSINTdefender on August 29, 2023, the Ukrainian Southern Operations Command carried out an operation targeting the port of Zalezny in the Kherson region. The operation resulted in the destruction of a secret coastal radar system called Predel-E, whose value is estimated at approximately $200 million. In addition to the radar system, the associated Leer-2 electronic warfare system, which protected the radar installation, was also destroyed. The specific means of destruction (whether by HIMARS strikes or precision jet strikes) are still under discussion.

This event comes after a series of seven Ukrainian strikes in Olenivka, Crimea, on 23 August 2023, which targeted valuable assets including the S-400 air defense missile system, the S-400-compatible Podlet-K1 low-altitude surveillance radar, and a Bastion coastal missiles.

The elimination of the Predel-E radar system in Zalezhnyy could poke a hole in the Russian surveillance network, which could enable increased movement of Ukrainian assets near the border or into Crimea without immediate detection. It could also impair Russia’s ability to intercept Ukrainian aircraft due to diminished early warning capabilities. Russia may also become more vulnerable to cyber countermeasures.

The destruction of the Podlet and Bastion systems at Olenivka could have multiple repercussions. This could undermine Russia’s ability to enforce a naval blockade, as the Bastion P system can target both naval and land assets. This could affect Russian supply routes and create opportunities for amphibious operations in key coastal areas. Ground operations could also become more feasible, as the absence of these systems would reduce direct threats to Ukrainian armored columns and infantry. Strikes against positions in Crimea can be carried out using mobile artillery or multiple rocket launcher systems with a low risk of detection and counterattack.

From a broader perspective, the loss of these systems could disrupt logistical and supply chain operations, given Crimea’s role as a critical logistics hub for Russia. Air strikes on critical infrastructure such as bridges, roads, and airports could become more viable due to the weakening of air defense capabilities. The use of drones could also be extended to reconnaissance and strikes, which could provide valuable insights into troop movements and defensive positions.

Specifications

The Predel-E radar system, also known as Pryedel-E or Limit-E, was developed by Concern Morinformsystem-Agat JSC in Russia. Mounted on a Kamaz 43118 6×6 chassis, this mobile coastal radar system features over-the-horizon detection and stealth capabilities, closely matching coastal defense requirements.

The primary goal of the Predel-E radar system is to extend the detection range of surface and airborne targets at low altitudes beyond the conventional radio horizon. According to the available information, its maximum detection range is 400 km, and it provides very accurate target coordinates, with an accuracy range of up to 100 meters and a deviation of 0.5 degrees. The 180-degree field of view allows for comprehensive scanning.

The system incorporates advanced electronics and stealth technologies, which reduces the radar cross-section and reduces the risk of detection by enemy electronic warfare systems. They are designed to operate reliably under various weather conditions. In terms of communications, Predel-E can exchange data with other stations via wired and wireless channels. Wired networks support data transmission up to 500 meters away, while radio channels can cover a distance of up to 25 kilometers.

The Predel-E operates in both active and passive radar modes, providing operational flexibility. It was initially presented with limited features at the International Maritime Exhibition IMDS-2017 but was fully unveiled at the Army-2022 event in June 2022, highlighting its strategic importance. When combined with the Bastion coastal anti-ship missile system, the Predel-E’s detection and tracking capabilities are enhanced, contributing to precise targeting and engagement of naval assets.

The system can go from transport mode to operating mode in less than 5 minutes and is fully operational within 20 minutes. It is mounted on a Kamaz 43118 6×6 chassis, which has various technical specifications including a range of horsepower, torque values, and fuel capacities. The vehicle’s maximum speed is 90 km/h, it can handle inclines of up to 31%, and its average fuel consumption is 26 liters per 100 km at 60 km/h. With a 350-litre fuel tank, it has a maximum range of 1,100 km.

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