That's not quite correct. There is also a cable that runs from the connector on the rear panel of the 746 to the tuner. This connector is commonly used for the Icom AH-4 style tuner. Rather than the LDG tuner simply sensing the RF, this cable commands the unit when the rig is tuned. I had wrongly assumed that it would also tell the tuner what frequency it was on. If I had done my homework I might have discovered this.
It's not a show-stopper - only a very minor inconvenience. I wanted to pass it along for anyone else that might make the same assumption. 73 Dave KB3MOW -----Original Message----- From: digitalradio@yahoogroups.com [mailto:digitalra...@yahoogroups.com]on Behalf Of jhaynesatalumni Sent: Monday, February 22, 2010 9:58 PM To: digitalradio@yahoogroups.com Subject: [digitalradio] Re: Something to consider about external automatic antenna tuners --- In digitalradio@yahoogroups.com, "Dave 'Doc' Corio" <dco...@...> wrote: > However, there is one thing the tuner will NOT do. It will not remember > any band or frequency, until the transmitter is keyed. > Well, sure. The only thing going from the radio to the tuner is the antenna cable, so the tuner has no way to know that you have changed frequency on the transceiver. Whereas a tuner built into the radio, or one made for the radio you have and connecting to the radio with a control cable, can get frequency information from the radio. But the third-party tuner only knows you have changed frequency when you tickle it with some RF.