[Elecraft] Advice!

[Don Wilhelm]

Joe,

You are correct - I was looking at the RF voltage - not the power.

73,
Don W3FPR

On 7/30/2011 3:47 PM, Joe Subich, W4TV wrote:
>
> Don,
>
> > AM with its 50% power carrier and sidebands that change in amplitude
> > should present a less harsh situation than RTTY which is 100% duty
> > cycle.
>
> AM carrier power is 25% of PEP (not 50%). The RF voltage and current
> are each 50% of peak values which makes power 25% of peak. The US
> "legal limit" for AM is 375W carrier (1500/4).  For the KPA-500 this
> means 125W (certainly no more than 150W) carrier.
>
> 73,
>
>    ... Joe, W4TV
>