Her website. Her copywrited paper is also available at: http://www.oz6hq.dk/userfiles/downloads/kpa500%20mods.pdf Shows details about her modification to add 2.5 db gain by eliminating the input attenuator and modifying the sensor circuit to keep the protection circuit - protecting.
Elecraft disavows modifying the KPA500 for stability and FCC rules violation by the manufacture reasons, at least while the silly 15 db rule is in effect. Hopefully the FCC will get around to the elimination of the 15 db rule in the present NPR. I believe my Harris analog TV PAs were in the 20 db gain region - apx 10 watts in for a kilowatt out. I believe the digital PAs were lower gain to run as class A (or very close to class A). >From the analog exciter output to IPA to PA to low-pass/filterplexer output it was from 250 mw to 30 kw. That would be over 50 db gain! And that system was type accepted. 73 George - AI4VZ -----Original Message----- From: Bill Johnson I went to his "website" and wound up downloading the famous, "your PC is infected, call Microsoft immediately" message. I did a hard shut down without clicking on any thing on the desktop, not infected. So be careful with this suggestion. 73, Bill K9YEQ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
