AH-703 HF/50MHz 5 Band Antenna - covers 7, 14, 21, 28 & 50MHz bands, Max. length 1.4m;4.5 ft.
AH-2b Antenna Element For mobile operation with the AH-4, all bands between 7-54MHz can be matched.
AH-4 HF +50MHz Automatica Antenna Tuner
AT-180 HF +50MHz Automatic Antenna Tuner