I have KPA sn 666 on the air! I purchased the kit. Assembly took 6 hrs. I had some initial FAULT conditions that showed a HIGH SWR. I am running the amp through a Palstar AT1500DT, into an HF9V Butternut vertical, ground mounted. I also have a TH3MK3 beam. I suspected a ground loop, so, I improved my ground system and have only had very few FAULT conditions since. The KPA500 SWR bar graph is what I use to tune with, SWR being 1.1:1, with one SWR segment lit. I also started having POUT HI Faults, (yesterday, after using the amp for a two days.) I drive it with 15W, (I want to go easy on it breaking it in) These FAULTs were occuring when the amp was switched from BAND to BAND, using either the K3, or KPA500. Also, these FAULTs would occur when switching from OPER to STBY and STBY to OPER, but not every time. What could be causing this to occur? I did adjust the ATTEN REL setting to 2 (DEFAULT is 3), and this seemed to cure the FAULTs. Is this common? I love the little amp, I enjoyed building it and it is a great addition to the K3! I do have the AUXBUS between the two. Any thoughts would be appreciated. Thanks Forest (Gene)
-- View this message in context: http://elecraft.365791.n2.nabble.com/KPA500-Faults-ATTEN-REL-tp7251351p7251351.html Sent from the Elecraft mailing list archive at Nabble.com. ______________________________________________________________ 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
