The Diamond BC100S is a professional-grade, high-integrity VHF vertical base station antenna precision-engineered to deliver exceptional omnidirectional signal propagation and reliable wide-area tracking. Featuring a robust 5/8 wave architecture enclosed in a heavy-duty fiberglass radome, this premium fixed-station radiator is custom-built to replace standard metal whips that suffer from weather degradation or unstable grounding loops. It stands as an ideal infrastructure asset for commercial marine dispatch offices, public safety tracking networks, industrial plant facilities, and base depots requiring a durable, high-gain communication node.
The advanced internal RF architecture covers a broad operational frequency span from 115 to 174 MHz, making it highly versatile for civil aviation, marine band, and commercial VHF land-mobile frequencies. To ensure absolute technical system alignment across your specific operating channel, the antenna includes an official factory tuning cutting diagram, allowing technicians to precision-trim the internal radiating element to a perfect resonant center point. Once calibrated, the array maintains an ultra-efficient voltage standing wave ratio (VSWR) of less than 1.5:1, protecting your transmitter’s final stage circuits from destructive reverse-power reflections.
Built to endure severe environmental stress, the BC100S features an aerodynamic, heavy-duty fiberglass shell measuring 170cm in length and weighing a balanced 1.2kg. The base is equipped with rugged omnidirectional ground-plane radials to stabilize the radiation pattern, and the entire assembly is structurally rated to withstand extreme wind speeds up to 60m/s. Delivered with a universal mounting bracket kit that accepts standard mast diameters from 30 to 62mm, and terminating in a low-loss female MJ (UHF-type) connector block with a 50 Ohm nominal impedance, this turnkey base antenna ensures immediate field deployment readiness for your technical hardware fleets.
Technical Specifications
| Technical Parameter | Specification |
|---|---|
| Brand | Diamond Antenna |
| Model | BC100S / BC-100S |
| Antenna Classification Type | Omnidirectional Base Station Ground Plane |
| Electrical Wave Profile | 5/8 Wave configuration matrix |
| Active Operational Spectrum | 115 to 174 MHz continuous range (115-174MHz) |
| Tuning Methodology | Field trimmable array assisted by an included factory cutting diagram |
| Forward Signal Gain | 3.4 dB (3.4dB) |
| Voltage Standing Wave Ratio (VSWR) | Less than 1.5:1 (less than 1.5: 1) |
| Maximum Transmission Power | 100 Watts (100W maximum applied load continuous) |
| System Impedance | 50 Ohm Nominal |
| Interface Connection Port | MJ Female bulkhead connector (UHF SO-239 style) |
| Environmental Wind Survival | Accepted wind speed up to 60m/s (60m / s) |
| Mast Hardware Requirements | Accepted mast diameter range: 30mm to 62mm (30-62mm) |
| Structural Dimensions | Length: 170cm vertical footprint |
| Net Hardware Mass | 1.2 Kg (1.2Kg) |
| Package Content | 1x Diamond BC100S Fiberglass Antenna Base, 3x Omnidirectional Radial Rods, 1x Mounting Bracket Assembly Clamp Kit, 1x Tuning Trim Chart |
