The PNI Duplex 2000 Mobile antenna CB-FM is a commercial-grade, multi-band automotive vehicular radiator precision-engineered to combine the technical characteristics of the license-free CB frequency (27 MHz) with those of standard car FM radio (88 – 108 MHz) into a single, high-efficiency mechanical housing. Designed as an elegant, low-profile replacement solution, this specialized transceiver mast seamlessly replaces the car’s original FM radio antenna, enabling vehicle operators to listen to broadcast radio entertainment while simultaneously transmitting and receiving voice communications over local Citizen Band channels. It serves as an essential logistics procurement component for commercial transport trucks, distribution vans, utility vehicle fleets, and high-volume B2B radiocommunication accessory wholesale distribution networks looking to optimize vehicle aesthetic profiles by eliminating multi-antenna clutter.
The innovative architectural design of the PNI Duplex 2000 differs sharply from conventional installations by integrating an advanced internal isolation matrix that actively cancels local automotive electrical noise, ensuring pristine audio reception across both bands. To maintain maximum performance under diverse mounting geometries, the antenna features an adjustable tip that allows for quick, interference-free calibration. Under ideal installation and use conditions, the system delivers premium electrical matching parameters characterized by a minimum SWR in the center of the band of less than 1.2, an FM impedance of 150 Ohms, and a standard transmission CB impedance of 50 Ohms capable of handling a maximum applied power of 50 W.
Built from heavy-duty, high-flexibility fiberglass material, the low-profile antenna body features a streamlined tip length of 440 mm, making it exceptionally resilient against impact strikes from low-hanging branches or clearance bar boundaries. The vertically polarized radiator is optimized to withstand extreme weather and operational climates, performing flawlessly across a broad operating temperature range of -26°C ~ +80°C. For a simplified layout and a clean installation routing path through automotive headliners, the kit includes 5 meters of premium low-profile RG174 cable splitting into dedicated leads terminated with a standard PL-259 connector for CB equipment and a parent ISO connector for standard automotive radio hubs. Requiring a fixed 16 mm installation hole diameter, this turnkey dual-purpose antenna ensures immediate technical system alignment and absolute fleet readiness.
| Technical Specification Parameter | Specifications |
|---|---|
| Product Brand Designation | PNI (Original Factory Commercial Mobile Line) |
| Hardware Model Designation | Duplex 2000 Multiband CB/FM Series |
| Primary Component Classification | Dual-Purpose Combo Mobile Vehicular Transceiver Antenna |
| Active CB Frequencies Scope | 26.965 MHz to 27.405 MHz Citizen Band Allocation (27 MHz Core) |
| Active Car Broadcast FM Scope | 87 MHz to 108 MHz Commercial FM Radio Band Allocation |
| Maximum Input RF Power Capacity | 50 Watts (50W) Continuous Applied Power Threshold (CB Stage) |
| Standing Wave Ratio Efficiency | SWR < 1.2 Minimum Rating in the Center of the Target Band |
| System CB Impedance Match | 50 Ohms Nominal Transmission Standardization Path |
| System Car FM Impedance Match | 150 Ohms Dedicated Broadcast Receiver Matching Core |
| Radiation Wave Polarization | Vertically Polarized Electromagnetic Field Geometry |
| Primary Structural Core Material | High-Flexibility, High-Durability Industrial Fiberglass Whip |
| Total Physical Whip Tip Length | 440 mm (44 cm) Low-Profile Overhead Clearance Profile |
| Integrated Coaxial Feedline Type | 5 Meters (5 m) Continuous Low-Loss RG174 Dual-Cable Wiring Harness |
| Interface Hardware Output Ends | 1x PL-259 Male Connector Plug (CB Radio Side) + 1x Parent ISO Adapter (Car Stereo Side) |
| Required Installation Hole Scale | 16 mm Diameter Structural Body Sheet Metal Punch Cutout |
| Operational Ambient Climates | Extreme Temperature Limits: -26°C up to +80°C Multi-Season Calibration |
| Complete Turnkey Package Inclusions | 1x PNI Duplex 2000 Antenna Base, 1x 440mm Fiberglass Tip, 1x 5m RG174 Loom with PL259 & ISO Ends |
| Verified Hardware Compatibility Scope | Standard 27MHz mobile CB radios, factory or aftermarket vehicular FM entertainment stereos, and flat automotive roof panels |
| Primary Fleet Utility Purpose | Turnkey OEM antenna substitution outfitting, dual-band single-chassis fleet tracking, low-clearance obstacle protection, and terminal transceiver impedance mismatch validation |
