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NVIS Antenna 1.5 - 30 MHz

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NVIS Antenna 1.5 to 30 MHz

Overview This NVIS (Near Vertical Incidence Skywave) antenna is engineered for reliable short-range HF communications across 1.5–30 MHz. Designed for emergency communications, tactical deployments, and field operations, it provides strong low-angle and near-vertical radiation for dependable coverage within a few hundred miles without dependence on repeaters or ground infrastructure.

Key Features :

  • Frequency coverage: 1.5–30 MHz continuous operation

  • NVIS-optimized radiation: high-angle takeoff suited for regional coverage (50–400 miles)

  • Compact, deployable design: lightweight and packable for rapid field setup

  • Tunable across bands: integrated matching network or external ATU compatibility for efficient operation across the full range

  • Balanced/Unbalanced feeding options: feed with ladder line, twinlead, or coax via balun

  • Rugged materials: UV-resistant insulators, corrosion-resistant wire and fittings

  • Quick deployment hardware: shock-corded poles, guying points, and tensioning grips included

  • Low-profile operation: minimal visual and RF signature when needed

  • Portable power handling: rated for typical field transmit power (specify by model; commonly 100–150 W)

  • Optional accessories: ground mat/counterpoise, choke/isolator, carry case, and field tuner

NVIS Antenna 1.5 to 30 MHz

Overview This NVIS (Near Vertical Incidence Skywave) antenna is engineered for reliable short-range HF communications across 1.5–30 MHz. Designed for emergency communications, tactical deployments, and field operations, it provides strong low-angle and near-vertical radiation for dependable coverage within a few hundred miles without dependence on repeaters or ground infrastructure.

Key Features :

  • Frequency coverage: 1.5–30 MHz continuous operation

  • NVIS-optimized radiation: high-angle takeoff suited for regional coverage (50–400 miles)

  • Compact, deployable design: lightweight and packable for rapid field setup

  • Tunable across bands: integrated matching network or external ATU compatibility for efficient operation across the full range

  • Balanced/Unbalanced feeding options: feed with ladder line, twinlead, or coax via balun

  • Rugged materials: UV-resistant insulators, corrosion-resistant wire and fittings

  • Quick deployment hardware: shock-corded poles, guying points, and tensioning grips included

  • Low-profile operation: minimal visual and RF signature when needed

  • Portable power handling: rated for typical field transmit power (specify by model; commonly 100–150 W)

  • Optional accessories: ground mat/counterpoise, choke/isolator, carry case, and field tuner

Electrical Features, Mechanical Features, and Cable Data Sheet specifications
Electrical Features
Frequency 1.5 - 30 MHz
Max Power 150W
Resistance 860 Ohm
Gain Max 0 dBi at 5 MHz; 1 dBi at 10 MHz
2 dBi at 15 MHz; 3 dBi at 20 MHz
Connector PL fem, N fem (optional)
Mechanical Features
Length 30 m
Weight 5 kg
Cable Weight 26 g/m
Structure Kevlar Core Code + Silver Plated Copper Braid
Finishing PE Insulation Cover
Colour Black
Temperature -35°C to 80°C
Installation Elevation By Rope Bracket ON Mast 30-90mm
Cable Data Sheet
Outside Diameter 5 mm (0.200")
Max Power 10 kW RF @ 30 MHz
Construction Kevlar Core - Silver Plated Copper Braid –
PE Insulation Cover
Colour Black
Coil 100 m
Temperature Range -100°C to +155°C
Weight 26 g/m
DC Resistance 37 Ohms/Km
Breaking Load 6500 N (1433 lbs)
Environmental Specification details
Environmental Specification
Temperature, salt, ice, UV resistance in accordance with MIL-STD 810H – STANAG 4370 (NATO AECTP-230)
Vibration resistance in accordance with MIL-STD 167-1
Shock resistance in accordance with MIL-STD 810H
Treatments and painting in accordance with MIL-T-704K and accordance with ETSI EN 300 019-2-4
Easy Antenna Assembly
  1. Secure the two elements of the balun with the screw.
  2. Secure the cable lugs and tighten the nut as shown.
The Kit Contains
The antenna kit contains the following components
2 Antenna Cables, Assembled
1 Balun
2 Stakes
2 Tension Ropes (5m) with Tension Regulators
1 AISI 316 Bracket with Stainless Steel Clamps