The Ampro 12 is a helical-wound HF mobile whip antenna for the 12m band (24 MHz) — available in Moonraker and Sigma versions. Designed for mobile HF operation, the helical winding delivers full-size electrical performance in a compact 200cm physical length, making it a practical choice for 12m mobile operation.Rated at 250W and with a VSWR of 1.5:1 or better, it's well suited to SSB and digital operation on the 12m band — a WARC band that opens well during periods of higher solar activity. The 300 kHz bandwidth provides generous coverage across the band. The 3/8" thread fitting is compatible with the vast majority of mobile antenna mounts and magnetic bases.Key Features Type: Helical wound HF mobile whip Frequency: 24 MHz (12m band) Antenna length: 200cm VSWR: 1.5:1 or better Max power: 250W Bandwidth: 300 kHz Fitting: 3/8" thread Available in Moonraker and Sigma versions Technical Specifications Frequency: 24 MHz Type: Helical wound Length: 200cm VSWR: 1.5:1 or better Power: 250W Bandwidth: 300 kHz Fitting: 3/8" thread