The M99RT-171 is a ZCG Scalar highly flexible VHF helical whip antenna designed for reliable operation at 171 MHz in demanding mobile and fixed VHF communication environments. Delivering 2.1 dBi gain in a compact 205 mm form factor, this antenna provides stable omnidirectional performance while maintaining durability in high-vibration and impact-prone installations.
Engineered for VHF communications systems, the M99RT-171 is well suited to telemetry networks, industrial radio systems, transport communications, and specialist fixed or mobile RF applications operating around the 171 MHz band. Its helical design enables flexibility without compromising electrical performance, making it ideal for environments where antenna deflection or physical contact is expected.
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The M99RT-171 is a ZCG Scalar highly flexible VHF helical whip antenna designed for reliable operation at 171 MHz in demanding mobile and fixed VHF communication environments. Delivering 2.1 dBi gain in a compact 205 mm form factor, this antenna provides stable omnidirectional performance while maintaining durability in high-vibration and impact-prone installations.
Engineered for VHF communications systems, the M99RT-171 is well suited to telemetry networks, industrial radio systems, transport communications, and specialist fixed or mobile RF applications operating around the 171 MHz band. Its helical design enables flexibility without compromising electrical performance, making it ideal for environments where antenna deflection or physical contact is expected.
The antenna is fitted with a 5/16″-26 brass female thread, ensuring compatibility with standard mounting systems such our OB-4.7 and MGB-OB bases, as well as other industry-standard 5/16″-26 male threaded mounts. This universal interface allows for straightforward integration into a wide range of RF installations.
Its highly flexible construction allows the whip to bend under load and return to vertical orientation, helping maintain optimal polarisation and signal performance even in harsh operating conditions. This makes it particularly suitable for vehicles, remote installations, and environments exposed to mechanical stress or movement.
Rated for up to 25 W power handling, the M99RT-171 delivers dependable performance in low-to-medium power VHF systems requiring consistent coverage and mechanical resilience.
Combining high flexibility, compact VHF design, and rugged threaded compatibility, the M99RT-171 is a durable solution for 171 MHz communication systems operating in challenging environments.
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