The Diamond SG9500N is a professional-grade, high-integrity triband mobile antenna precision-engineered to deliver exceptional multi-frequency signal propagation across three distinct amateur radio bands. Operating seamlessly across 144 MHz (VHF), 430 MHz (UHF), and 1200 MHz (SHF) spectrums, this premium vehicle whip eliminates the requirement for multiple antennas or complex switching arrays on a single mobile platform. It acts as an elite, high-performance infrastructure asset for tactical fleet communications, search and rescue vehicles, and B2B radiocommunication distributors seeking factory-certified multi-band hardware solutions.
The advanced internal RF architecture utilizes a highly specialized, radialless C-Load electrical configuration. This specific phasing matrix acts as a 1/2 wave radiator on 144 MHz, a 2×5/8 wave array on 430 MHz, and a massive 5×5/8 wave structure on 1200 MHz. By removing the dependency on an external chassis ground plane or physical radials to form its radiation pattern, the SG9500N delivers highly efficient, stable signal tracking and clean vertical polarization profiles whether installed on standard vehicle mounts, roof racks, or fiberglass trunk brackets.
Built to endure the physical mechanical stresses of high-speed highway wind resistance and severe vehicular vibrations, the rugged chassis has a vertical clearance length of 1.00m and weighs a highly balanced 320g. The internal tuning delivers exceptional forward signal gain metrics, achieving 3.15dB at 144MHz, 6.3dB at 430MHz, and an impressive 9.7dB on the high-frequency 1200MHz band. Capable of handling transmitter power inputs up to 100W FM (50W FM limit on 1200MHz) and engineered for standard 50ohms nominal systems, the array maintains a highly efficient voltage standing wave ratio (VSWR) of less than 1.5:1 to protect your transceiver’s power amplifier.
For high-frequency applications where line signal loss must be tightly managed, this specific SG9500N model variant terminates in a premium N-Type Male (NP) connector base. This interface provides superior impedance matching and lower insertion attenuation compared to standard UHF connectors, particularly on the microwave 1200 MHz band. Delivered as a turnkey, factory-phased field radiator, this premium mobile antenna ensures immediate deployment readiness for high-tier technical communications fleets.
Technical Specifications
| Technical Parameter | Specification |
|---|---|
| Brand | Diamond Antenna |
| Model Variant | SG9500N (Features N-Type Connector Base) |
| Antenna Classification Type | Triband Mobile Antenna Whip |
| Operational Frequency Bands | 144 MHz / 430 MHz / 1200 MHz (VHF / UHF / SHF Triband Matrix) |
| Electrical Wave Configuration | • 144 MHz: 1/2 Wave C-Load radialless structure • 430 MHz: 2×5/8 Wave C-Load radialless structure • 1200 MHz: 5×5/8 Wave C-Load radialless structure |
| Forward Signal Gain Rating | • 144 MHz Band: 3.15 dB (3.15dB) • 430 MHz Band: 6.3 dB (6.3dB) • 1200 MHz Band: 9.7 dB (9.7dB) |
| Maximum Transmission Power | • 144 / 430 MHz: 100 Watts FM max rating • 1200 MHz: 50 Watts FM max rating • Total Combined Limit: 100 Watts continuous power threshold (100W Total) |
| Voltage Standing Wave Ratio (VSWR) | Less than 1.5:1 nominal calibration center |
| System Impedance | 50 ohms Nominal |
| Interface Connector Layout | NP Type (N-Type Male / Base matching high-frequency low-attenuation targets) |
| Physical Clearance Length | 1.00 m total vertical profile footprint |
| Net Hardware Mass | 320 g |
| Primary Fleet Utility Purpose | Multi-band tactical fleet outfitting, mobile transmission path stabilization, and radio laboratory replacement stock |
| Package Content | 1x Diamond SG9500N Triband Antenna whip element with integrated N-Type base interface |
