[Elecraft] KPA-1500 Efficiency

[K8ZCT]

I would think these RF input versus RF output numbers are reasonable.
Everyone's setup will vary for all bands.

I haven't looked at the KPA-1500 Utility in a while, but "real" efficiency
of the amplifier is a different calculation. Amp efficiency is Power Input
versus Power Output, and per Elecraft that is somewhere around 50% or so. If
you had the equipment to measurement the power input, it would be somewhere
in the 3000W range I would assume with a 1500W output.


That is why the fans are required and the ventilation of the unit is
critical, as there is a lot of heat being
dissipated to the space as was discussed in other posts.


Bill, K8ZCT





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