The DIAMOND D303 – Base antenna only RX – Freq .: 0.5 MHz -200 MHz Length: 1.56m Weight: 0.85 kg Connector: MJ Includes coaxial cable rg-58 10m. is a commercial-grade, fixed-station wideband receiving antenna precision-engineered to deliver exceptional signal path tracking, low-noise spectrum monitoring, and stable line conditioning across low-to-high frequency bands. Manufactured by Diamond Antenna, an international industry standard in high-performance RF engineering, this premium stationary vertical antenna overhauls legacy setups by covering a massive, continuous reception matrix without requiring external mechanical matching networks or complex active tuning arrays. It stands as an essential operational procurement asset for dedicated monitoring stations, maritime signal tracking hubs, emergency communication command bases, and high-volume B2B radiocommunication hardware wholesale distribution channels looking to stock authentic factory base station components.
The advanced internal RF core of the D303 is strictly optimized as a base antenna only RX array, maximizing signal capture efficiency while bypassing the thermal and isolation constraints found in transceiver radiators. It boasts an expansive, high-compliance operational bandwidth spanning a freq .: 0.5 MHz -200 MHz continuous range, allowing operators to trace long-range communications spanning longwave, mediumwave AM broadcast, high-frequency shortwave allocations, and the entire VHF low/high spectrum bands simultaneously. This wideband capture layout eliminates the operational bottleneck of deploying separate regional antennas, ensuring that monitoring receivers maintain a consistent, uninterrupted signal line across varying channel coordinates.
Housed inside a weatherized, aerodynamically stable fiberglass and metal alloy enclosure built to withstand severe multi-season environmental fatigue, the antenna features an assembled vertical length: 1.56m. Registering a well-balanced structural weight: 0.85 kg, it applies minimal physical lever torque to standard mounting poles, utility masts, or building side-brackets. The base feedpoint terminates in a high-retention connector: MJ (SO-239 UHF Female type) with a heavy-duty threaded locking collar to isolate transmission lines against moisture ingress and signal dropouts. To guarantee a seamless, turnkey installation pipeline out of the box, the system package includes coaxial cable rg-58 10m. pre-terminated to match your receiver junction grids and ensure absolute field deployment readiness.
Technical Specifications
| Technical Parameter | Specification |
|---|---|
| Product Brand Designation | Diamond Antenna (Original Factory Genuine Japanese Premium Base Line) |
| Hardware Model Designation | D303 / D-303 Wideband Series |
| Primary Component Classification | Omni-Directional Base Station Wideband Receive-Only Antenna |
| Active Operational Application | Dedicated Signal Reception Matrix Only (RX – Non-Transmitting Element) |
| Active Operational Frequencies | 0.5 MHz to 200 MHz Continuous Tracing Bandwidth (LW / MW / HF / VHF spectrums) |
| System Characteristic Impedance | 50 Ohm Nominal Transmission Line Standardization Profile |
| Primary Base Connection RF Port | MJ Connector Type (Standard SO-239 / UHF Female Threaded Socket) |
| Interconnect Transmission Cable | 10-Meter Low-Loss RG-58 Coaxial Jumper Cord (Pre-terminated with PL-259 Male matching fittings) |
| Total Assembled Vertical Length | 1.56 meters Continuous Physical Clearance Footprint |
| Net Operational Hardware Mass | 0.85 kg (850 grams) Ultra-Lightweight Low-Torque Structural Mechanical Frame |
| Verified Hardware Compatibility Scope | SDR (Software Defined Radio) dongles, multi-band communications receivers, desktop scanner units, marine monitoring bays, and infrastructure utility masts |
| Primary Fleet Utility Purpose | Turnkey command base outfitting, long-range emergency signal monitoring, multi-band spectrum tracking, and receiver circuit front-end protection |
