Same as Hammarlund HQ-180A, but the Hammarlund HQ-180AX features a crystal selection switch in the panel area formerly occupied by the clock-timer. This switch can select up to six crystals on the front panel and up to five installed inside the radio.
This is the best Hammarlund I have owned I have had hq100, hq105, . the 180 was given to me by a cber who tried to make hot on 11meters. ive got working all bands now and im doing aligment that is not a simpl task. but audio is better then any outher brand. will finish it sometime this year.AL KA7OZY