LP-80-2000

The LP-80-2000 is a versatile, high-gain Log Periodic Dipole Antenna (LPDA) engineered for comprehensive wideband performance across the 80–2000 MHz spectrum. Covering critical frequencies from tactical VHF and military UHF to GSM, GPS, and L-band satellite services, this 2-meter array is a primary asset for directional transmission, spectrum monitoring, and high-power jamming. Its non-loaded, all-aluminum architecture ensures a consistent 8 dBi gain and superior mechanical integrity, making it a definitive choice for rapid-deployment tactical missions and permanent fixed-site installations.

Design: Wideband Versatility & Rapid Response

The LP-80-2000 is designed to provide a single-antenna solution for operators needing to bridge the gap between low-band tactical nets and high-frequency data links.

• Unloaded Frequency Efficiency: By utilizing full-sized radiating elements without lossy electrical loading, the antenna maintains a highly efficient radiation pattern and a stable 8 dBi gain across the entire bandwidth.
• Rapid Tactical Deployment: Featuring foldable elements and a streamlined mounting arrangement, the system can be fully assembled by two technicians in less than 5 minutes. Elements are segmented for easy logistics and attach via a secure stainless steel stud system.
• Polarization Agility: The mounting bracket is specifically engineered to allow for quick orientation changes between Horizontal and Vertical polarization, ensuring compatibility with diverse signal types in the field.

Construction: MIL-SPEC Industrial Hardening

Constructed from 6063T6 architectural anodized aluminum alloy, the LP-80-2000 is built for extreme environmental survival and long-term reliability.

• MIL-STD-810G Certified: The antenna is rigorously tested for high/low temperatures (-40°C to +70°C), shock, vibration, humidity, and salt fog. It is specifically treated for survival in the world's harshest climates.
• Integrated D.C. Grounding: The system operates at D.C. ground, providing a low-resistance path for lightning protection and suppressing atmospheric static, resulting in an ultra-quiet noise floor for sensitive surveillance.
• Marine-Grade Durability: All fasteners are made of Type 304 stainless steel, and the entire unit is finished with an epoxy-based Olive Green powder coating for total corrosion resistance in coastal or industrial zones.

Reliability: 250W–700W Power Capacity

With a standard 250 Watt power capacity (upgradeable to 700 Watts), the LP-80-80-2000 is robust enough for continuous-duty jamming and high-capacity backbone links. The 70-degree horizontal beamwidth provides a powerful directional floodlight, while the 16 dB Front-to-Back ratio ensures energy is focused on the target while shielding personnel behind the mast.

Technical Features

• Comprehensive 80–2000 MHz Coverage: Replaces multiple antennas for VHF, UHF, and L-Band.
• High-Efficiency 8 dBi Gain: Focused directional performance across the entire wideband.
• 250W High Power Handling: Optimized for electronic countermeasures (ECM).
• MIL-STD-810G Compliance: Engineered for extreme shock, vibration, and salt-fog environments.
• Rapid 5-Minute Assembly: Foldable/segmented elements for streamlined tactical logistics.
• Rear-End Mounting Clamp: Securely fits 38mm to 77mm (1.5-3 inch) heavy-duty masts.
• D.C. Grounded Safety: Integrated lightning protection and enhanced noise immunity.
• Aerodynamic 200 Km/Hr Rating: Designed for stability in high-wind conditions.

Integration Guide: Maximizing Tactical Intercepts

1. Defeating Urban Multipath

In city environments, signals reflect off glass and concrete surfaces, causing their polarization to rotate.

• The Solution: The LP-80-2000’s flexible mounting allows you to match the polarization of the incoming reflected wave, ensuring a stable link or intercept when a direct line-of-sight is blocked.

2. Tactical Jamming & J/S Ratio

At 250 Watts, the focused 70-degree beamwidth acts as a directional "floodlight." This concentrations of energy exponentially increases your Effective Radiated Power (ERP) on the target receiver, allowing you to "drown out" adversary communications at extended ranges.

3. Managing the Noise Floor

For sensitive SIGINT operations, the D.C. Grounded design is vital. It bleeds off the "static crackle" that builds up in dry or windy conditions, which can otherwise raise the noise floor and hide weak low-power transmissions.

Strategic EW & SIGINT Guide: 80–2000 MHz Tactical Mastery

The LP-80-2000 is a versatile "bridge" antenna designed for the modern electronic battlefield. Spanning from 80 MHz to 2 GHz, it covers the entire spectrum of legacy tactical VHF (SINCGARS), aviation and maritime links, military UHF, and the primary L-Band cellular/satellite bands. In this diverse frequency range, signals interact with the environment in vastly different ways, making the LP-80-2000’s adaptability a mission-critical requirement.

1. Defeating Polarization Fading & Multipath

At the lower end of the band (80–150 MHz), signals diffract around large obstacles. At the higher end (1000–2000 MHz), they reflect sharply off metal and concrete. Both behaviors cause Polarization Rotation.

• The Problem: A standard vertical whip antenna will experience a signal "null" or dropout of up to 20 dB if a target's signal rotates horizontally after hitting a building or a hillside.
• The Tactical Solution: The LP-80-2000 features a flexible mounting arrangement that allows operators to switch between Horizontal and Vertical polarization in minutes. This ensures you can match the orientation of the incoming wave to maintain a stable intercept or high-fidelity link.

2. Tactical Jamming & J/S Ratio Optimization

To successfully disrupt a wideband frequency-hopping network or a high-speed data link, you must achieve a superior Jamming-to-Signal (J/S) ratio at the victim's receiver.

• Power Density Focus: The 8 dBi gain acts as a "magnifying glass" for your RF energy. Instead of scattering 250W (or 700W) in all directions, the LP-80-2000 focuses that energy into a tight 70-degree floodlight.
• Effective Radiated Power (ERP): By concentrating the energy, you exponentially increase your ERP on the target receiver, allowing you to successfully "drown out" a legitimate signal from several kilometers away even with relatively low input power.

3. SIGINT "Fingerprinting" & Source ID

The LP-80-2000 allows SIGINT operators to identify the nature of a transmitter based on its RF signature and angle of arrival:

• Vertical Orientation: Typically identifies standard mobile tactical units, vehicle-mounted whips, or handheld radios.
• Horizontal Orientation: Often indicates fixed-site point-to-point relays, TV/broadcast backup links, or specialized NVIS (Near Vertical Incidence Skywave) links used for regional communication.
• Rapid Signal Fluctuations: A signal that rapidly fades in and out often identifies a moving vehicle or aircraft as its angle of arrival and reflection points change in real-time.

4. "Silent" Monitoring: D.C. Grounding & Static

At frequencies approaching 2 GHz, sensitive SIGINT receivers are highly vulnerable to "Noise Floor" elevation, which can mask weak or "hidden" tactical signals.

• Static Suppression: High-speed wind or dry air moving across the antenna elements creates "Precipitation Static" (P-Static). On an ungrounded antenna, this creates an electronic "hiss" that raises the noise floor.
• The Solution: The LP-80-2000 is D.C. Grounded. It constantly bleeds off this static charge to the mast and earth, ensuring the lowest possible noise floor for detecting low-power transmissions.

Tactical Deployment Checklist

• Phase-Matched Feeders: If using multiple LP-80-2000 units for an array, use identical lengths of LMR-400 or LMR-600. Even a small difference in cable length causes phase shifts that degrade your system's performance.
• Rapid 5-Minute Setup: Take advantage of the foldable elements. Ensure the stainless steel studs are tightened to spec; in high-vibration tactical environments, element security is vital for maintaining a stable VSWR.
• Mast Stability: Because the beamwidth is 70 degrees, a 35-degree error in alignment will drop your gain significantly. Use a compass to ensure the antenna is pointed exactly at the target sector for maximum intercept probability.
• Weather-Sealing: While the antenna is finished for severe environments, the N-Female connector is the most vulnerable point. Use butyl rubber tape to create a primary moisture seal on all outdoor connections to prevent VSWR spikes during rain.