Did you load one of the recent beta firmware releases?  Starting with
5.01 (I think) - certainly in 5.10 there was a change that required
redoing the TX power calibration.

73,

  ... Joe, W4TV


On 2015-02-22 6:26 AM, Johnny Siu wrote:
Hello Elecrafters,
I recently discovered that only 20m can deliver 90W with all other bands 
deliver 40-50W.  I did a RF power output re-calibration and everything is ok 
now.
I don't know why this happens?  I did not do any changes in configuration 
before.
Any ideas?
73
Johnny VR2XMC
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