MFJ IntelliTuner y IC-706MKII

Copiado del manual descargado de una Web.

The MFJ-5124I interface cable provides power and control between an Icom radio and the MFJ
automatic tuner. Supported Icom radios are IC-706, IC-707, IC-718, IC-725, IC-728, IC-736, IC-738,
IC-746, IC-756, IC-765, IC-775, and any Icom radio that supports the Icom AH-3 and AH-4 tuners.
Push and hold the radio’s [TUNER] button for two seconds to start the tuning process. Push
[TUNER] quickly to bypass the tuner.

Pin 1 (Key) connects to the Tip of 3.5 mm Stereo Phone Plug.
Pin 2 (Start) connects to the Ring of 3.5 mm Stereo Phone Plug.
Pin 3 (+13.8V) connects to the Center Pin of Power Plug.
Pin 4 (Ground) connects to the Sleeves of both 3.5 mm Stereo Phone Plug and Power Plug.

Figure 5. Icom Interface Cable.

Gracias Jesús.
He hecho el cable y funciona pero pulsando el botón TUNE del acoplador y no el del 706.
De todos modos tengo que leerme bien el manual porque no logro que acople el hilo largo cuando la SWR es mayor de 2. ¿Sabes cómo se soluciona esto?
Gracias una vez más.