Emergency Communications | HF Antenna Hardening
WHEN THE GRID FAILS, THE PHYSICS MUST HOLD.
Hardened 6061-T6 Infrastructure for Mission-Critical HF Continuity.
The Liability of "Fragile" Emergency Antennas
Most emergency antennas are designed as temporary wire solutions. In a sustained disaster or grid-down scenario, fragility is a liability. Greyline provides Sovereign Communication Nodes—hardened property assets that stand up to 110-155+ MPH winds and require zero buried radials for operation.
100% Duty-Cycle ALE
Engineered for continuous Automatic Link Establishment (ALE) and high-speed digital modes. Our 6061-T6 radiators handle 1500W+ without the failure points of traps or coils.
Zero-Radial VDA Physics
Traditional verticals require 32-100 radials for efficiency. Greyline VDAs are ground-independent, allowing deployment on rooftops, asphalt, or frozen soil in minutes.