This document analyzes the functions of Israeli military facilities deployed on Mount Sheikh, based on open-source (OSINT) data. The main argument is that these facilities should be considered not merely as air surveillance radar positions, but as a multi-layered information gathering network encompassing signal intelligence (SIGINT), electronic intelligence (ELINT), communications intelligence (COMINT), electro-optical surveillance, and communications relay functions.
Mount Sheikh, located on the border of Israel, Syria, and Lebanon, is a strategic geographical location at an altitude of approximately 2,100–2,814 meters, making it one of the highest points in the region. Mount Sheikh's elevation exceeding 2,100 meters significantly increases line-of-sight (LST) range. This advantage is a critical physical condition for passively listening to radio communications operating in the VHF/UHF band. A SIGINT station at a high-altitude point could theoretically obtain the following information: which units are communicating, when networks are active, call signs and communication density, unit mobility levels, and the approximate direction of transmitter locations.
Signal intelligence (SIGINT) is the general name for the discipline of obtaining intelligence through the interception of electronic signals. The United States Department of Defense defines SIGINT as "a category of intelligence that includes communications intelligence (COMINT), electronic intelligence (ELINT), and foreign instrumentation signals intelligence (FISINT), individually or collectively."
COMINT is the interception and analysis of communication signals between individuals or groups. It only covers signals containing speech or text: telephone calls, radio communications, text messages, and digital communications are considered under this category. Even if encrypted communication is not deciphered, traffic analysis—that is, examining who is communicating with whom and at what intensity—can generate valuable intelligence on its own. ELINT is the collection and analysis of non-communication electronic transmissions, particularly radar, missile guidance system, and navigation device signals. The distinction between ELINT and COMINT is clear: if a signal carries speech or text, it falls under COMINT; if it does not, it falls under ELINT. ELINT data provides the basis for constructing an Electronic Warfare Order by analyzing the pulse repetition frequencies, scan rates, and power outputs of enemy radars.
Establishing an Electronic Warfare Order (EW) requires identifying SIGINT emitters in the area of interest, determining their geographical locations, characterizing their signals, and, if possible, defining their roles within the broader organizational warfare order. The EW encompasses both COMINT and ELINT data. This order functions as an electronic map of the enemy air defense network and constitutes a critical input for offensive planning.
Hebrew sources state the following regarding the Mount Sheikh (Hermon) position: "The position houses electronic devices for collecting signal intelligence for Unit 8200 within AMAN, as well as numerous Air Force systems." An OSINT analysis published by the Centre for Security Studies (CSS) at the Swiss Federal Institute of Technology Zurich (ETH Zurich) academically confirms this: "Several SIGINT centers have been built, particularly in Tel Avital in the Golan Heights, Mount Hermon (Mount Sheikh), and Um-Hashiba in the Sinai Desert, to collect evidence and communications intelligence in order to provide early warning in the event of a conflict."
Unit 8200 (יחידה 8200) is a unit operating within the Israel Defense Forces Intelligence Corps and responsible for signal intelligence gathering, codebreaking, counterintelligence, cyber warfare, and surveillance.
Israel Homeland Security (iHLS), an Israeli intelligence publication, reports that Unit 8200, one of the most well-known intelligence gathering bases, is located on the summit of Mount Sheikh. The same source describes the unit's capabilities as follows: "8200 identifies the source and receivers of signals, and monitors signal intensity – valuable information even if the data itself is not deciphered. 8200 captures electromagnetic signals emitted from electronic systems that, on their own, do not contain data, such as weapon systems, aircraft, and ship radars."
Radar range is a function of antenna height and target altitude. Hermon's height, exceeding 2,100 meters, significantly increases its ability to overcome terrain obstacles, especially with low-altitude targets. With radars deployed on Mount Sheikh, much of southern Syria and Lebanese towns are within its coverage area. However, precise numerical claims cannot be scientifically justified as the radar model or verified range in kilometers housed by existing radomes has not been published in publicly available sources; instead, they can be estimated by comparison with the coverage of comparable radars and devices. While the line of sight against high-altitude targets can reach several hundred kilometers, the detection range for a ground target in a valley or behind terrain may be much shorter.
The capabilities of Mount Sheikh are not limited to radio frequency and radar systems. Israeli military intelligence is known to integrate electro-optical sensors with SIGINT and radar data at the doctrine level. Unit 9900 within AMAN is responsible for visual imagery and geospatial intelligence (VISINT). IAI's Heron MK II platform has been documented to carry and operate COMINT, ELINT, electro-optical systems, and radar simultaneously, creating an integrated intelligence picture. The application of a similar sensor fusion approach in fixed installations is a natural extension of military doctrine. When radar detects movement or a target, the electro-optical sensor provides visual confirmation of the target; this process is called "sensor matching" or sensor fusion.
The white circular shapes you see in the image are called radomes. A radome (radar + dome) is a structural enclosure that protects a radar or communications antenna while largely allowing electromagnetic waves to pass through. The radome protects the antenna from weather conditions and conceals the antenna equipment from external observation. Not every radome necessarily contains a conventional air defense radar. The radome makes it difficult to see from the outside which direction the antenna inside is facing and whether it is rotating. Looking at the dome, it is not possible to definitively determine whether what is inside is a radar, satellite antenna, signal intelligence antenna, or electronic support receiver. This feature provides military secrecy and limits the ability to remotely identify the type of system. While we cannot make a definitive judgment visually, open sources strengthen our claim.
However, specific radar models, frequencies, precise ranges in kilometers, and active electronic jamming capabilities are not publicly available. Therefore, it is a methodological requirement that this article be written carefully, paying attention to the boundary between verifiable facts and speculative assessments.
