less power on some bands

Takeshi Yamada

i noticed that my Flex6500 outputs 23 watts on 21Mhz and 34 watts on 18Mhz at maximum while on the other bands it outputs expected power 100 watts.   I did not notice such phenomenon before, v1.0, v1.0.24, but I am not sure if it is because of v1.1.   And why only 2 bands, 18Mhz and 21Mhz?
Is not there any way to check any possible cause of such phenomenon?
Or any suggestions are appreciated.

Dudley-WA5QPZ

Ken,

Be sure to remove the DC from the radio and restart.   Always use the Tune button, and while Tune is engaged,  increase the RF Power slider to 100%  ..    This will be full RF output.    

DonS

I have checked the output of my 6700.  40m and 80m I measured 80 watts into a 50 ohm dummy load.  On 20m and 15m I measured 70 watts out.  I went into tune mode and increased the RF power slider to 100%.  I am using v1.1, however, I have always had low power from the time I received the radio.

Takeshi Yamada

If it were 70 watts or so, I can ignore it.  But it is 25 watts on 15M and 35 watts on 17M while all other bands are > 90 watts to the dummy load.   Strange as there are no such thing to limit output by band.  I use "Tune" and slide the slider leftmost to rightmost several times and these are the value at the rightmost.