The Diamond NR240C Foldable Mobile Antenna (2m/70cm) – Diamond NR240C 2m/70cm SO-239 Foldable Mobile Antenna is a commercial-grade, dual-band vehicular communication radiator precision-engineered to deliver secure voice synchronization, exceptional spatial frequency tracking, and multi-band path flexibility. Fabricated by Diamond Antenna, a global industry standard in high-tier RF manufacturing, this premium whip overhauls restrictive stock layouts by introducing high-efficiency passive wave phasing that maximizes long-range transmission lines without manual matching adjustments. It stands as an essential operational procurement asset for commercial transport networks, public utility command vehicles, tactical emergency coordination teams, and high-volume B2B radiocommunication accessory wholesale distribution channels looking to source original factory-genuine mobile station assets.
The advanced internal RF architecture of the NR240C is optimized to provide dual-band spectrum tracking across targeted frequencies of 144/430 MHz (2m/70cm), allowing seamless integration with multi-band mobile transceivers. Engineered to comfortably sustain heavy-duty transmit cycles from high-output systems, the rugged element handles a nominal max power of 150W peak envelope power. To deliver extended point-to-point path coverage over rolling terrain and urban concrete corridors, the physical array operates as a high-gain 2 x 5/8 wave phase element for 2m and 70cm wave paths. This specialized electrical configuration yields a remarkable passive field performance with a certified gain of 3.8dBi (2m) and 6.2dBi (70cm), flattening radiation angles toward the horizon to bypass regional obstructions.
Housed inside an aerodynamically stable structural whip featuring an integrated foldable mechanical hinge at its base, the antenna stands at a total assembled length of 1.01m. This foldable layout allows operators to quickly lower the vertical whip frame before entering tight overhead structures, parking garages, or low-hanging storage bays without needing to unscrew the entire base mount. Weighing a highly balanced weight of 440g to limit physical mechanical stress on automotive body panel layers, the feedpoint terminates in a heavy-duty connector: SO-239 threaded assembly. Engineered to keep transmission systems protected by preserving an ultra-low matching SWR of less than 1.5 along a standard impedance of 50Ω, this turnkey dual-band antenna ensures absolute field deployment readiness.
Technical Specifications
| Technical Parameter | Specification |
|---|---|
| Product Brand Designation | Diamond Antenna (Original Factory Genuine Japanese Premium Mobile Line) |
| Hardware Model Designation | NR240C Foldable Series |
| Primary Component Classification | Dual-Band Vehicular Mobile Transceiver Foldable Antenna Whip |
| Active Operational Frequencies | 144 MHz (VHF 2-Meter Band) and 430 MHz (UHF 70-Centimeter Band) Dual Tracing Matrix |
| Antenna Radiation Wave Type | 2 x 5/8 Wave Phased Elements Configuration for Optimized Horizons |
| Maximum Input RF Power Capacity | 150 Watts (150W) Nominal Max Power Envelope |
| System Performance Passive Gain | 3.8 dBi (VHF 144 MHz Segment) / 6.2 dBi (UHF 430 MHz Segment) Effective Field |
| Voltage Standing Wave Ratio Efficiency | VSWR Less than 1.5 Center-Band Resonance Optimization |
| System Characteristic Impedance | 50Ω Nominal Transmission Line Standardization Profile |
| Primary Base Connection RF Port | SO-239 Female Threaded Socket Base (Fits PL259 Coaxial Leads) |
| Mechanical Structural Features | Integrated Low-Profile Hinge for Manual Quick Foldable Orientation |
| Total Assembled Whip Length | 1.01 meters Continuous Vertical Clearance Footprint |
| Net Operational Component Mass | 440 grams Low-Torque Mechanical Balance Weight |
| Verified Hardware Compatibility Scope | PL259-terminated heavy-duty magnetic bases, gutter mounts, truck ledge brackets, multi-band mobile transceivers, and low-loss RG58/RG213 coaxial lines |
| Primary Fleet Utility Purpose | Turnkey multi-band vehicle outfitting, low-clearance quick fold tracking, long-range dual-band signal monitoring, and transmitter output circuit protection |
