JCD-700-2500

The JCD-700-2500 is a compact, mission-critical Omni-Directional Ultra Wide Band Jammer Coaxial Dipole Antenna engineered for absolute spectrum flexibility across the 700–2500 MHz range. This unified aperture is a "single-antenna" solution for the entire modern tactical landscape, covering LTE 700 (FirstNet), GSM, GPS L1/L2, 3G, 4G LTE, and 2.4 GHz Wi-Fi. Built with 6063T6 architectural aluminum and protected by a UV-resistant ABS radome, it is the definitive choice for RCIED jamming, spectrum monitoring, and high-mobility vehicular surveillance.

Design: Unified Spectrum Mastery & Hemispherical Protection

The JCD-700-2500 is optimized for operators who require "gapless" frequency coverage from the public safety bands up to the 2.5 GHz microwave range without switching hardware.

• Gapless 700–2500 MHz Coverage: Replaces multiple dedicated antennas by providing a single high-performance aperture for tactical data links, cellular triggers, and SATNAV bands.
• Hemispherical 78° Vertical Beam: The wide vertical beamwidth ensures that the antenna provides 360-degree protection not just at ground level, but also against elevated threats such as high-angle drones (UAVs) or low-flying aircraft.
• Advanced Center-Fed Architecture: Utilizes a specialized center-fed design to maintain a smooth VSWR (Better than 2:1) and a constant 2 dBi gain across nearly two gigahertz of bandwidth, ensuring peak jammer efficiency without field tuning.

Construction: MIL-Standard Hardening

Built to survive the mechanical stress of active combat zones and extreme climates, the JCD-700-2500 uses a "zero-fail" architecture.

• Compact & Rugged Form Factor: At only 280mm long and weighing just 500 grams, this antenna minimizes the vehicle's visual signature and wind load (200 Km/Hr rating) while resisting the impact of overhead obstacles.
• Weather-Protected Feed: The N-Female termination is fixed at the bottom of the mounting pipe. This clever engineering protects the critical RF connection from moisture ingress, salt fog, and physical cable snagging.
• UV-Resistant ABS Radome: The radiating elements are housed in a robust, cylindrical ABS radome that offers excellent RF transparency while protecting against UV radiation, sandstorms, and ice formation.

Technical Features

• Elite 700–2500 MHz Bandwidth: One antenna for FirstNet, GSM, LTE, and Wi-Fi applications.
• 250W RF Power Handling: Robust enough for continuous-duty jamming and high-power transmission.
• Omni-Directional 2 dBi Gain: Provides a consistent 360° "safety bubble" around the platform.
• NATO 4-Hole Mounting Option: Standardized for rapid integration onto armored vehicles or tactical masts.
• Marine-Grade Durability: Constructed from 6063T6 aluminum and Type 316 stainless steel hardware.
• Wide Operating Range: Proven performance from -30°C to +70°C.

Integration Guide: Maximizing Tactical Omni Coverage

1. Mastering Hemispherical Situational Awareness

Standard high-gain antennas often miss signals coming from high angles.

• The Wide-Beam Advantage: With a 78-degree vertical beam, the JCD-700-2500 maintains contact with low-flying drones or aircraft as they pass over the site. This makes it an essential tool for monitoring data links and telemetry that standard antennas would "drop" at high elevation angles.

2. Tactical Jamming & J/S Ratio Optimization

When used in Electronic Countermeasures (ECM), the antenna’s 250W capacity allows for the creation of a high-intensity "denial zone." Its omnidirectional pattern ensures that all threats—whether they are roadside IED triggers or airborne control signals—are subject to the same level of interference.

3. Survivability and Mounting

Whether using the NATO 4-hole pattern for vehicle hulls or the pole-mount option for tactical base stations, the antenna's low weight and compact size ensure it can be deployed on light masts or vehicle roofs without causing structural stress.

Strategic EW & SIGINT Guide: JCD-700-2500 Total Spectrum Mastery

The JCD-700-2500 is a "zero-gap" tactical asset designed for the 700 MHz to 2.5 GHz spectrum. While high-gain antennas focus energy into a thin horizontal "disc," the coaxial dipole architecture of the JCD-700-2500 provides a massive 78-degree vertical beamwidth. This makes it the premier choice for Hemispherical Situational Awareness, allowing a single platform to monitor or jam ground-level cellular triggers and high-altitude UAV/GPS data links simultaneously.

1. Mastering Hemispherical Coverage (Ground-to-Air)

In modern asymmetric warfare, threats do not just live on the roadside; they come from high-angle commercial drones (UAVs) and overhead satellite navigation signals (GPS).

• The Wide-Beam Advantage: Standard high-gain antennas often have a "null" or dead zone directly above the mast. The JCD-700-2500’s 78-degree vertical beamwidth ensures a constant "denial bubble" from the horizon up to near-zenith angles.
• 360° Shielding: Whether a target is a FirstNet-enabled trigger on the street or a 2.4 GHz control link on an incoming drone, this antenna maintains a stable 2 dBi gain across the entire 360-degree azimuth.

2. Tactical Jamming & RCIED Denial

To successfully disrupt wideband threats—such as frequency-hopping L-Band data links or cellular triggers—the antenna must handle high RF stress without "detuning" or mechanical failure.

• 250W Continuous Power: The 6063T6 aluminum construction acts as an efficient heat sink. Unlike standard consumer-grade antennas, the JCD-700-2500 can sustain 250 Watts of continuous jamming power, creating a high-intensity interference zone to protect the convoy or base station.
• Center-Fed Stability: The specialized internal center-fed design ensures that the VSWR (2:1) remains stable across nearly two gigahertz of bandwidth. This prevents power reflected back to the transmitter (SWR), protecting your jammer's expensive power amplifiers from thermal damage.

3. Deployment Flexibility & Survivability

Tactical operations require hardware that can be integrated onto any platform and survive impacts with low-hanging urban obstacles.

• NATO 4-Hole Standard: The available NATO flange allows for a rock-solid connection to standard vehicular mounts. This ensures the antenna remains rigidly vertical during high-speed maneuvers, which is critical for maintaining the 78-degree protection bubble.
• Compact Low-Profile Resilience: At only 280mm (11 inches) long and weighing just 500 grams, the JCD-700-2500 is extremely low-profile. It is significantly less likely to snag on trees or power lines than traditional 1-meter whips, and its UV-resistant ABS radome protects internal elements from sand abrasion.

4. "Silent" Monitoring: D.C. Grounding & Noise Floor

For sensitive SIGINT operations, the "Noise Floor" is the ultimate enemy. High-speed wind moving across an antenna surface creates Precipitation Static (P-Static), which can "blind" a receiver to weak signals.

• The Solution: The JCD-700-2500 is D.C. Grounded. It constantly bleeds off this static charge to the mast or vehicle chassis. This ensures an ultra-low noise floor, allowing a connected receiver to detect low-power "hidden" transmissions or weak cellular handshakes that would be buried in the static of an ungrounded antenna.

Tactical Deployment Checklist

• Height vs. Obstructions: Because the JCD-700-2500 has a very wide vertical beam, it is sensitive to nearby obstructions. Mount the antenna at the highest possible point to prevent the vehicle's armor or the mast itself from "shadowing" the 78-degree signal.
• Cable Integrity at 2.5 GHz: At 2500 MHz (2.5 GHz), cable loss is severe. Do not use standard RG-58. Use high-grade LMR-400 or LMR-600. Every 3 dB of cable loss effectively cuts your 250W jamming power or reception sensitivity in half.
• Weather-Proof Termination: The N-Female connection is fixed at the bottom of the mounting pipe. Ensure the cable is securely tightened and sealed with vulcanizing tape to prevent moisture from traveling up the cable jacket, which can detune the 2:1 VSWR.
• Antenna Spacing: If deploying multiple jammers on one platform, maintain as much physical separation as possible. The wide vertical beam of the JCD-700-2500 can easily "talk" to other antennas on the same roof, potentially causing interference or desensitizing other receivers.