A Most of the auto tuners incorporated into new rigs have limited tuning ranges. They’ll only deal with SWRs up to about 3:1. That may be sufficient to extend your ability to use your tribander beyond its 2:1 SWR bandwidth on each band. Don’t count on the built-in tuner having enough range to handle the long-wire, though. You will need a separate, wide-range tuner to load your long-wire.
From QST June 2001
From QST June 2001