This Vertical VHF HF Military Vertical Dipole Antenna provides coverage from 2M-40M and 220MHz, which is 36 inches x 4 inches x 1.5 inches in size, weighs 22 ounces.

SPECIFICATIONS

• Deployable with quantum and/or spread-spectrum equipment.
  • For equipment that singular or simultaneous frequencies.
• Missions that require digital HF communications using Ground-wave and/or Skywave signal patterns.
  • Digital skywave coverage area for a radius of 1500-miles for a diameter of 3000-miles on 7MHz to 30MHz.
  • All-Mode ground-wave coverage in a radius of 60-miles (dependent upon height) for 1.8-7MHz, 7MHz-30MHz, 144-148MHz, and 220-240MHz.
• Useful when an isolated solution is required that requires no counterpoise.

Power Rating: 250W at 25% duty cycle, 125W at 50% duty cycle, and 25W for Digital Modes. Including but not limited to the MIL-STD-188 M110a digital communications mode that is rated at 25 watts continuous with bursts of 100 watts digital for up to 1 minute using the MIL-STD Data Modem Terminal (MS-DMT) and Automated Message Terminal (AMT) software applications.

Analysis

250MW WSPR TX Results (7-30MHz)

Break-out of TX Results (Click Map to Enlarge)

USAGE SCENARIOS

Where secrecy is paramount, communication through unseen methods plays a crucial role. Some of the usage scenarios of clandestine antennas include:

1. Clandestine Communications in Cyber-Denied Environments:

• Context: In an era where internet-based communications are vulnerable to surveillance and attacks, intelligence operatives seek alternative methods.
• Scenario: Imagine a situation where an operative needs to communicate without exposing themselves to internet-based surveillance.
• Solution:
  • Physical Separation: Platforms physically separated from the internet can be used. These platforms are not susceptible to internet-based surveillance or attacks.
  • Radio Technology: Combine modern computer-based software with radio technology.
• Importance: Counterintelligence and law enforcement must adapt to these evolving communication methods.
• Countermeasures: Detect radio-based clandestine communications and secure evidence.

2. Operational Scenarios where concealment and minimizing visibility are critical:

• Inside a Parked Car:
  • Example: Monitoring a nearby building while parked outside.
    • Setup: Transmitter, receiver, and antennas positioned out of sight from windows.
  • Between Floors in an Office Building:
    • Example: Operating from the third floor to the first floor.
      • Setup: Transmitter, receiver, and antennas positioned out of sight carried out of site under clothing.
    • Out in the Open:
      • Example: Providing regional communications support while deployed in the field.
        • Setup: Transmitter, receiver, and antennas positioned out of sight inside a backpack.

CONCLUSION

Remember, clandestine antennas are designed to operate covertly, avoiding detection by adversaries. Their success lies in striking a balance between effective communication and maintaining secrecy with a right sized antenna.

All these solutions are enabled by the HF Military Vertical Dipole Antenna known as the DuoPole.

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