On Mon, 14 Jun 2010 11:56:43 -0700 (PDT), K7ITM wrote:

Measuring a Kenwood TS520S, set up for about 70 watts output, ALC
disabled, operating as a linear amplifier somewhat (about 30 watts)
below its maximum output: result is 56+j16 ohms at the output UHF
connector on the TS520S.

Comparing to my table of results for my own TS430S, with similar
initical conditions, that is well within the range of measurements I
have taken.

73's
Richard Clark, KB7QHC