Fw: [Boatanchors] 120 - 240vac and output

[Brian Clarke]

Hi fellas,
While there is no standard for S-meter calibration, manufacturers generally 
accept that each S-point is equivalent to about 6 dB. So, to go from S6 to S7, 
all other things being equal, you need to increase tx power by 4x. In the 
example you have quoted, to go from S4 to S9, that's 5 steps, ie, about 
30 dB; that corresponds to increasing your tx power by 1000x, ie, from 
1 W to 1 kW.
73 de Brian, VK2GCE.

BTW fellas, there were four tails on that message - and I pay for downloads - 
please, can we be a bit more considerate?
  Ray said:

  The 4x power to double signal strength that I was referring to was the 
  power output of the transmitter or linear..       In other words, if I want 
  to double the S meter reading on the other guys receiver from, say, S 4 
  to about S 9,  and I am running 100 watts .... then I generally need to 
  go to 400 watts to get double that reading on his S meter.