Push-to-Tune Cable Carrier Output from FT-857(D)/897(D) at the Push of a Button

Push-to-Tune Cable $12 The Push-to-Tune cable is a low-cost means to cause the FT-857(D) and FT-897(D) radios to produce a carrier that is often used when adjusting an antenna tuner. One end plugs into the radio and the other end has a push button. To operate, you simply press the button and the radio transmits a carrier as long as the button is depressed.