LP-88-1100

The LP-88-1100 is a high-gain, wideband Log Periodic Dipole Antenna (LPDA) designed for high-performance directional communication and electronic warfare across the 88–1100 MHz spectrum. Covering the critical transition from VHF to the upper UHF bands, this antenna is an essential tool for surveillance, scanning, and jamming. By utilizing a full-sized element design without loading coils, the LP-88-1100 delivers a consistent 9 dBi gain and linear performance, ensuring maximum signal intercept and power density for mission-critical applications.

Design: Wideband Directional Precision

The LP-88-1100 is engineered for operators who require a single, high-gain aperture to manage diverse signals across the VHF and UHF tactical landscape.

• Unified 88–1100 MHz Coverage: This single antenna replaces multiple narrow-band apertures, covering everything from FM broadcast and tactical VHF (88-174 MHz) to public safety, LMR, and GSM 900 (UHF) bands.
• High-Power 250W Handling: Built for continuous-duty electronic attack, the LP-88-1100 manages up to 250 Watts of RF power. This allows for effective signal denial and electronic saturation at significant standoff ranges.
• Surgical Directional Gain: Delivering a 9 dBi gain with a focused 65-degree horizontal beam, the antenna creates a dominant Jamming-to-Signal (J/S) ratio while maintaining a 16 dB Front-to-Back ratio to protect friendly assets.
• Polarization Agility: The versatile mounting arrangement allows for rapid field-switching between Vertical and Horizontal polarization, ensuring compatibility with any intercepted signal or mission requirement.

Construction: Ruggedized & Agile

Constructed for long-term deployment in harsh environments, the LP-88-1100 balances structural rigidity with tactical transportability.

• Removable & Foldable Elements: To facilitate easy shipping and rapid deployment, the antenna features removable elements. The longest element is 0.85 meters, and all elements are supplied in segments that attach via a fast-deployment stainless steel stud and nut system.
• Aerospace & Marine-Grade Materials: Crafted from 6063T6 anodized aluminum alloy square tubes (booms) and round tubes (elements). All assembly hardware is made of Type 316 marine-grade stainless steel, preventing corrosion in high-salinity coastal theaters.
• Environmental Hardening: The entire antenna is finished with an epoxy-based Olive Green powder coating. This provides a low visual signature and extra protection against UV radiation, salt spray, and acid rain.
• D.C. Grounded Safety: The array operates at D.C. ground, providing a safe discharge path for lightning and bleeding off static noise, which is critical for high-fidelity signal interception and monitoring.

Technical Features

• Consistent 9 dBi Gain: Linear performance and predictable radiation patterns across the entire 1 GHz bandwidth.
• No Loading Techniques: Uses full-sized architecture to ensure maximum electrical efficiency and structural durability.
• 190 Km/Hr Wind Rating: Extra spacers between support booms provide the mechanical stability needed for high-wind environments.
• Rear-End Mounting: Mounting clamps are positioned at the rear end of the boom to prevent the mounting mast from distorting the radiation pattern.
• Compact Logistics: A 2.2-meter shipping length allows for streamlined transport to tactical operations centers (TOCs).

Strategic EW, SIGINT & Monitoring Compatibility: LP-88-1100

The LP-88-1100 is a high-gain, tactical precision instrument. While omnidirectional discones are used for general awareness, this Log Periodic Dipole Antenna (LPDA) is engineered for Targeted Electronic Warfare and High-Fidelity Signal Intelligence. Its 88–1100 MHz range covers the most congested and critical tactical bands, including FM broadcast, VHF air/maritime, and UHF cellular/LMR frequencies.

1. Electronic Warfare (EW) & Electronic Attack (EA)

In Electronic Warfare, the LP-88-1100 acts as a Directional Force Multiplier. Its 9 dBi gain allows an operator to concentrate jamming energy toward a specific threat vector with nearly triple the effective range of a standard dipole.

• Surgical Denial & Jamming: With a 65-degree horizontal beamwidth, this antenna can focus 250 Watts of RF power onto a specific adversary communication node or a known RCIED trigger. This directional concentration is highly effective for disrupting localized command-and-control (C2) while minimizing "Electronic Fratricide" (interference with friendly systems) located behind the antenna.
• High Front-to-Back Ratio (16 dB): This is critical for self-protection. It ensures that while the front of the antenna is neutralizing a target, the energy radiated toward the operator's own sensitive equipment is suppressed by 16 dB, allowing for safer simultaneous operations.
• Polarization Matching: The ability to mechanically rotate the antenna for Horizontal or Vertical polarization is a decisive EW advantage. Many high-band digital links are horizontally polarized, while tactical radios are vertical; the LP-88-1100 handles both with ease to ensure maximum jamming efficiency.

2. Signals Intelligence (SIGINT) & Electronic Support (ES)

For SIGINT teams, the LP-88-1100 is a Direction-Finding (DF) and Signal Exploitation tool. Its linear gain across the 1 GHz bandwidth is essential for high-fidelity signal analysis.

• Line-of-Bearing (LOB) Acquisition: The directional properties of the LP-88-1100 allow operators to "hunt" signals. By rotating the antenna for peak Signal Strength (RSSI), a precise Line-of-Bearing can be established to triangulate the location of an enemy transmitter.
• Flat Gain Response: Unlike many wideband antennas that have "notches" or blind spots, the LP-88-1100 maintains a consistent 9 dBi gain. This allows SIGINT software to accurately calculate the Effective Radiated Power (ERP) of a target, a key metric for identifying specific hardware types used by an adversary.
• Passive Inter-Modulation (PIM) Suppression: The 6063T6 aluminum construction and D.C. grounded design minimize internal noise generation. This ensures that weak, low-probability-of-intercept (LPI) signals are not buried under self-generated "ghost signals" or hardware noise.

3. Spectrum Monitoring & Tactical Surveillance

The LP-88-1100 is designed for "Targeted Persistence" across the primary tactical spectrum.

• Multi-Band Mastery: A single LP-88-1100 can be used to monitor:
  • VHF Low/High (88-174 MHz): Tactical FM, Air Traffic Control, and Maritime.
  • Public Safety (400-900 MHz): TETRA, P25, and emergency services.
  • Cellular (850-1100 MHz): GSM 900 and high-speed telemetry links.
• Ground-to-Air Surveillance: Its directional gain makes it superior for tracking aircraft or drones at a distance. Operators can "track" a flight path with high-gain precision, ensuring a stable link even at the extreme edge of the line-of-sight horizon.
• Precipitation Static (P-Static) Immunity: The D.C. Grounded design is critical for monitoring in inclement weather. It bleeds off static electricity from wind and rain that would otherwise create "pops" and "crackles" in the received audio, ensuring high-fidelity signal recording and analysis.