Bingfu 20-1300MHz Police Scanner Antenna Radio Scanner Magnetic Base Antenna HF VHF UHF Ham Radio BNC Male Antenna (2-Pack) Compatible with Uniden Bearcat Whistler Radio Shack Police Radio Scanner 2-Pack BNC Antenna sold2022 (Data source: Quarble laboratory test)

(Data source: Quarble laboratory test) Professional closed magnetic field

It has 5 pin contacts on one side

but also stable data transmission

Portable Ashtray for Car

Bingfu 20-1300MHz Police Scanner Antenna Radio Scanner Magnetic Base Antenna HF VHF UHF Ham Radio BNC Male Antenna (2-Pack) Compatible with Uniden Bearcat Whistler Radio Shack Police Radio Scanner 2-Pack BNC Antenna sold2022 (Data source: Quarble laboratory test)Bingfu 20 1300MHz Police Scanner Antenna Radio Scanner Magnetic Base Antenna HF VHF UHF Ham Radio BNC Male Antenna (2 Pack) Compatible with Uniden Bearcat Whistler Radio Shack Police Radio Scanner Specifications: Gain: 7dBi Frequency Range: 20MHz 1300MHz; Compatible with: Amateur Radio; Car Mobile Radio; Handheld Ham Radio; Two Way Radio; Public Radio Scanner; Feature: Magnetic Base Mounting VSWR: <2. 0; Impedance: 50 ohm; Direction: Omni directional;