Reginald Mackey wrote: > > my ts570dg folds back the output power to 50% at 1.5.1 swr. > Is there a reason it cannot deliver full power up to 2.1 without using the > internal tuner? > > Thanks in advance, > > Reggie One reason companies build super sensitive crowbar circuits is that it protects their repair depts. while the rigs are still under warranty. Gary de.... N1MSV