I know the function of an antenna tuner is "reduce" the actual SWR to an acceptable level in the eyes of the transceiver so it does not restrict its power output. And that the actual SWR, in reality, does not change. What I would like to know is this: 1. For owners of the following transceivers, how high of an SWR can your internal tuner effectively handle? a. Kenwood TS-590SG b. Icom IC-7300 c. Yaesu FT-991A or FTDX-3000 or 1200 2. For owners of an external tuner, how high of an SWR can it handle? (Please denote Brand/Model). Thanks!