The Diamond F22H VHF base antenna is a commercial-grade, high-performance monoband base station vertical radiator precision-engineered to provide maximum signal propagation and extensive coverage across the Very High Frequency (VHF) spectrum. Fabricated from premium, heavy-duty Randomized FRP (Fiber-Reinforced Polymer), the structural outer shell offers superior dielectric properties alongside an absolute barrier against harsh environmental decay, UV degradation, and moisture tracking. Designed by an industry-leading manufacturer of elite telecommunication hardware, this high-gain vertical mast serves as an essential logistics procurement component for public safety dispatch nodes, marine coordination stations, tactical utility command bases, and high-volume B2B radiocommunication hardware wholesale networks looking to source authentic Japanese-engineered infrastructure assets.
The sophisticated internal RF architecture of this VHF Monoband antenna features an omnidirectional 2 × 7/8λ phased element configuration. This specialized stacking geometry tightly compresses the vertical radiation angle, focusing energy toward the horizon to bypass localized ground clutter and achieve an outstanding peak G Gain of 6.7 dB. Operating over a standard 50ohms characteristic line impedance match, the antenna incorporates high-Q internal matching coils capable of safely handling a massive continuous power rating of 350 W, making it fully compatible with high-duty cycle paging transmitters, analog base stations, and digital mobile radio (DMR) tier-II/tier-III infrastructure loops while maintaining an exceptional electrical efficiency index characterized by a VSWR of Less than 1.5:1.
Engineered to survive punishing meteorological extremes and multi-season high-altitude exposure, the heavy-duty mechanical core reliably withstands a rated wind speed supported up to 50m/sec (equivalent to severe hurricane force). Standing at a total physical assembly length of 3.2 m and registering a well-balanced net structural weight of 1.3 kg, the antenna minimizes mechanical torque strain on support frameworks. The structural base mount accepts a broad, versatile mast diameter range of 30-62φ (mm) via rugged high-retention U-bolt hardware, and features a low-loss, heavy-duty MJ connector (UHF Female / SO-239 style connection base) shielded inside the bracket sleeve. Delivering instant wide-area communication cell alignment and ultimate station reliability, this premium turnkey antenna guarantees absolute field deployment readiness over an extended service lifetime.
| Technical Specification Parameter | Specifications |
|---|---|
| Product Brand Designation | Diamond Antenna (Original Genuine Japanese Factory Base Line) |
| Hardware Model Designation | F22H / F-22H (High-Power Professional Base Series) |
| Primary Component Classification | Fixed Station High-Gain VHF Vertical Omnidirectional Base Antenna |
| Operational Wavebands Scope | VHF Monoband Operational Frequency Optimization Geometry |
| Antenna Radiation Element Type | Omnidirectional Phased Array 2 × 7/8λ (Two times Seven-Eights Wavelength) |
| Nominal Apparent Electrical Gain | 6.7 dB High-Performance Effective Aperture Rating |
| Maximum Input RF Power Capacity | 350 Watts (350 W) Continuous Heavy-Duty Transmit Threshold |
| Voltage Standing Wave Ratio Efficiency | VSWR: Less than 1.5:1 (Optimized Minimum Return Loss Impedance Match) |
| System Characteristic Impedance | 50 Ohms Nominal Transmission Line Standardization Path |
| Primary RF Base Interface Connector | MJ Connector Type (UHF Female / SO-239 Built-in Socket Fitting) |
| Primary Outer Radome Material | Heavy-Duty Weather-Proof Randomized FRP (Fiber-Reinforced Polymer Shield) |
| Maximum Wind Velocity Tolerance | Up to 50 meters per second (50m/sec) High Shear Resistance Rating |
| Accepted Mounting Pole Scale | 30 mm to 62 mm Diameter (30-62φ) Versatile Structural Mast Bracket Fit |
| Total Physical Antenna Length | 3.2 meters Linear Rigid Multi-Section Vertical Assembly |
| Net Operational Component Mass | 1.3 kg Low-Torque Lightweight Structural Profiling |
| Verified Hardware Compatibility Scope | Standard PL-259 terminated coaxial cable lines, VHF high-power base transmitters, analog/digital repeaters, lightning surge protectors, and commercial steel antenna towers |
| Primary Fleet Utility Purpose | Turnkey fixed base station infrastructure outfitting, multi-shift regional dispatch tracking, severe environmental weather protection, and transmitter final stage amplifier protection |
