Re: [Elecraft] KPA500problem - Half output power

2020-05-16 Thread CUTTER DAVID via Elecraft
Bob I'm steering slightly off course and I feel I must come in: I presume that during the manufacturing process, the amplifier goes through a production process to set up the indicators using a lab quality load and modern, lab quality power meter, regularly calibrated. I have a Bird with

Re: [Elecraft] KPA500problem - Half output power

2020-05-16 Thread Bob McGraw K4TAX
I wouldn’t run the KPA500 at half power. And 25 watts of drive is certainly more than mine requires to attain rated power, except on 6M where it requires 25 watts. As to power output indicators, I used my Bird43 and a 500 watt element with a known good 50 ohm load. I then calibrated the

[Elecraft] KPA500problem - Half output power

2020-05-16 Thread TL_Netvision
Hello Elecrafters Thanks for your time on this, & I hope to find you all in good health My setup is K3+KPA500+KAT500. Sometime ago due to probably high SWR (water in the Pl259 leading to KAT-500) the KPA-500 stopped after a loud noise (can't tell whether KPA or KAT) was heard.