Mobile antenna system designed for Yaesu transceivers with ATAS system.
The ATAS120 mobile antenna system is designed for use with Yaesu transceivers equipped with the ATAS system, such as the FT-897, FT-857, FT-847 and FT-100D. It utilises a motorised tuning system which resonates the radiating element for the lowest SWR using control voltages sent to the ATAS-120 via the coaxial cable connected to your rig. Designed to mount directly onto a standard SO-239 mobile antenna mount (not supplied). In addition to HF/50MHz, operation on the 144 and 430MHz bands require a diplexer for the FT-857 or triplexer for the FT-847 which may additionally be purchased.
Also an optional ATBK-100 Antenna base kit is available. MFJ now make a manual control box (MFJ-1925I2) which enables the ATAS-120 to be used with the IC-706MkIIG and the MFJ-1925 for use with other rigs.