SD330 Diamond Screwdriver Antenna 3.5-30MHz

●Frequency: 3.5~30MHz ●Input resistance: 200W (SSB) ●Impedance: 50Ω ●VSWR: 2.0 or less (at resonant frequency) ●Total length: 1.85m (when tuned to 3.5MHz) ●Weight: Approx. 1.1kg ●Connection: M-P type ●Format: 1/4λ (shortened type) ●Power supply voltage current: DC12V/100mA ●Moving time: Approximately 50 seconds (3.5 → 30MHz), approximately 20 seconds (7 → 30MHz) By using a high-performance electric motor to vary the coil inside the antenna, the SD330 can cover a very wide band from 3.5MHz to 30MHz with a single antenna. In addition, the troublesome SWR adjustment can now be easily done from inside the car by using a dedicated switch while looking at the SWR meter. Moving from 3.5MHz to 30MHz can be changed in approximately 50 seconds. Also, it is possible to change from 7MHz to 30MHz in about 20 seconds. The power source can be easily accessed from the car's cigarette plug. Any HF band transceiver can be used regardless of manufacturer. In addition, by using the antenna tuner built into the radio and the magnetic sheet (MAT50), it is possible to use it at a lower SWR.