The Diamond NR770H dual-band mobile antenna is a commercial-grade, high-performance vehicular radiation element engineered to deliver outstanding omnidirectional signal propagation and extended link range across the VHF and UHF mobile bands. Standing at a physical layout length of 1.02 meters and weighing an optimized 250 grams, this premium mobile whip features a specialized non-radial technical architecture. Because it operates independently of a chassis ground plane, it delivers identical high-efficiency performance whether mounted on glass, fiberglass surfaces, or traditional metallic vehicular panels, making it an essential operational asset for commercial utility fleets, field service crews, and high-volume B2B radiocommunication accessory wholesale distributors across European markets.
The internal electrical engineering of the Diamond NR770H features a highly advanced stacked configuration, functioning as a 1/2λ non-radial element on 144 MHz and a 2 x 5/8λ non-radial array on 430 MHz. This layout concentrates radiation patterns down toward the horizon, yielding powerful signal gains of 2.15 dBi on VHF and 5.5 dBi on UHF while maintaining a steady VSWR of less than 1.5:1. Built to handle punishing power thresholds up to a 200 Watts maximum FM power rating with a nominal 50-Ohm system impedance, the antenna is constructed from premium, weather-resistant materials designed to withstand highway transit speeds. Pre-terminated in a standard MP connection interface (UHF-Male / PL-259 compatible), it ensures an absolute mechanical bond and immediate fleet deployment readiness.
| Technical Specification Parameter | Value & Fleet Alignment |
|---|---|
| Product Brand Designation | Diamond Antenna (Original Manufacturing) |
| Hardware Model Designation | NR770H |
| Primary Component Classification | Dual-Band Non-Radial Mobile Vehicular Whip Antenna |
| Operational Frequency Bands | 144 MHz (VHF / 2m) & 430 MHz (UHF / 70cm) Dual-Band Matrix |
| Antenna Wavelength Typology (VHF) | 1/2λ (Half-Wave) Non-Radial Structure Layout |
| Antenna Wavelength Typology (UHF) | 2 x 5/8λ Stacked Colinear Non-Radial Structure Layout |
| VHF Radiation Gain (144 MHz) | 2.15 dBi |
| UHF Radiation Gain (430 MHz) | 5.5 dBi High-Aperture Signal Boost |
| Maximum Input RF Power Rating | 200 Watts Continuous Peak Capacity (Total FM Matrix) |
| System Characteristic Impedance | 50 Ohms Nominal Optimization |
| Voltage Standing Wave Ratio (VSWR) | Less than 1.5:1 Tuned Bandwidth Minimum |
| Primary RF Interface Connection | MP Connector Base Terminal (PL-259 / UHF-Male Compatible) |
| Total Physical Height Length | 1.02 Meters Total Structural Whip Profile |
| Net Component Mass Weight | 250 grams Ultra-Lightweight Tactical Build |
