JC-134-174

Overview: JC-134-174 VHF Fiber Glass Jammer Collinear Antenna

The JC-134-174 is a rugged, military-grade Omni-Directional Collinear Antenna specifically engineered for Electronic Warfare (EW) and high-power jamming applications within the 134–174 MHz VHF band. Enclosed in a high-strength fiberglass radome, this antenna is designed to provide consistent 360-degree coverage for vehicle-mounted jammer systems, protecting convoys and tactical units from VHF-controlled threats. With a focus on survivability and rapid integration, it features a NATO standard 4-hole mounting pattern, making it compatible with global defense vehicle platforms.

Battlefield Durability & Construction

Hardened materials engineered for zero-failure performance on mobile tactical platforms. The JC-134-174 is constructed using high-class aluminum alloy and large-diameter brass radiating elements. To ensure maximum electrical stability and signal purity, the internal elements are vertically stacked and fed in phase. The radiating core is protected by a mechanically robust fiberglass enclosure that offers excellent RF transparency while providing the structural integrity needed to withstand winds up to 200 Km/Hr. The antenna is finished in tactical olive green, ensuring low observability and high resistance to harsh theater environments.

Operational Efficiency

Optimized for wide-sector protection and rapid vehicle integration. By utilizing specialized coaxial stub and spark gap techniques, the JC-134-174 maintains a smooth VSWR across its entire 40 MHz bandwidth. Unlike high-gain antennas that have a very narrow vertical beam, this jammer antenna features a wide 78-degree vertical beamwidth. This design choice is critical for mobile jamming: it ensures that the jamming signal reaches threats at varying elevations, such as in hilly terrain or urban environments, without the "blind spots" associated with narrower beams.

Detailed Technical Features

• VHF Jamming Mastery: Precision-tuned for the 134–174 MHz range, targeting tactical VHF communications and remote triggers.
• NATO Standard Integration: Features the standard NATO 4-hole pattern for direct installation on armored vehicle antenna base plates.
• Wide Vertical Coverage: A 78-degree vertical beamwidth ensures signal saturation across high and low elevations, ideal for close-range convoy protection.
• Ruggedized Fiberglass Radome: Provides a high-strength, RF-transparent shield against physical impact, sand abrasion, and ice loading.
• High Power Handling: Engineered for sustained 150 Watts of continuous RF power for persistent electronic attack.
• Omni-Directional Pattern: Delivers a true 360-degree horizontal radiation pattern for uniform area denial.
• Zero Field Tuning: Fully factory-calibrated architecture allows for immediate "plug-and-play" deployment without field adjustments.
• Integrated Termination: N-Female input is fixed at the bottom of the antenna, ensuring the cable connection is protected within the mount.

Environmental Specifications

The JC-134-174 is built to perform in the world's most demanding theaters:

• Operating Temperature: Certified for mission-critical use from -30°C to +70°C.
• Storage Resilience: Can be safely stored in non-operational states from -40°C to +80°C.
• Humidity Protection: Fully functional in 0 to 95% Relative Humidity, suitable for tropical and coastal theaters.
• High Wind Stability: Aerodynamically optimized to survive constant wind speeds up to 200 Km/Hr.

Key Advantages, Benefits & Applications

Key Advantages:

• Optimized for Terrain: The wide vertical beam is superior for jamming in mountainous or urban "canyon" environments compared to high-gain antennas.
• Rapid Deployment: The NATO mount allows for the antenna to be swapped or installed on tactical vehicles in seconds.
• Durability: Fiberglass and aluminum construction ensures a long service life with zero maintenance required in the field.

Key Applications:

• Convoy Protection (ECM): Vehicle-mounted jamming to prevent the remote detonation of VHF-controlled RCIEDs.
• Electronic Warfare (EW): Directional denial of VHF tactical voice and data communications.
• Mobile Command Security: Providing a localized signal suppression "bubble" for mobile headquarters.
• Area Defense: Blocking unauthorized VHF radio traffic in secure zones or around high-value assets.