connectedCallback() {

<---------------- snip ----------------->

//===============================================================================================
//    Set up    JS_LISTENER_KEYEVENT     GSD 07/03/2021

		RegisterViewListener("JS_LISTENER_KEYEVENT");
        this.keyListener = RegisterViewListener('JS_LISTENER_KEYEVENT', () => {
            Coherent.call('INTERCEPT_KEY_EVENT', 'VOR1_OBI_INC', 0);
            Coherent.call('INTERCEPT_KEY_EVENT', 'VOR1_OBI_DEC', 0);

            this.keyListener.on('keyIntercepted', keyEventName => {

                if (keyEventName === 'VOR1_OBI_INC')  {
                    if (SimVar.GetSimVarValue("GPS OBS ACTIVE", "boolean")) {
                        SimVar.SetSimVarValue("K:GPS_OBS_SET", "degrees", SimVar.GetSimVarValue("NAV OBS:1", "degree"));
                    }
                }
				
				if (keyEventName === 'VOR1_OBI_DEC')  {
                    if (SimVar.GetSimVarValue("GPS OBS ACTIVE", "boolean")) {
                        SimVar.SetSimVarValue("K:GPS_OBS_SET", "degrees", SimVar.GetSimVarValue("NAV OBS:1", "degree"));
                    }
                }

            });

        });
		
//=============================================================================================

<---------------- snip ----------------->

	}