[Elecraft] KPA500 wattmeter calibration

Is the Bird wattmeter and element rated for 50MHz? John KK9A Richard Lamont richard at lamont.me.uk Thu Jun 1 10:05:27 EDT 2017 I've been trying to calibrate the KPA500 wattmeter. I'm using a new Bird 43 meter with new 500A and 500H elements and a 1kW Bird Termaline load, connected by the

[Elecraft] KPA500 wattmeter calibration

I've been trying to calibrate the KPA500 wattmeter. I'm using a new Bird 43 meter with new 500A and 500H elements and a 1kW Bird Termaline load, connected by the shortest practical lengths of co-ax. Everything is fine, except on 50 MHz, where there isn't quite enough adjustment range available.