[Elecraft] SWR and Power readings RE: K2

Lyle Johnson kk7p at wavecable.com
Wed May 25 10:46:32 EDT 2005


> The question is, if the SWR is not 1:1, does the power reading which is 
> based on the voltage in a 50 ohms load read high or low?

It depends :-)

If the SWR is 2:1 and is caused by low impedance (e.g., 25 ohm load) 
then the voltage will be lower for a given power.  If the SWR is caused 
by a higher impedance (e.g., 100 ohm load)) then the voltage will be higher.

Lyle KK7P



More information about the Elecraft mailing list