First of all I¹m new to this forum having just taken delivery of a KPA-500 and KAT-500 pre built by the Distributors in the UK.
What has surprised me is that when either tuning or operating the KPA-500 with WSJT-X there is a very noticeable buzzing noise, not a transformer hum, from the unit. The Power output LED¹s light up but the last one appears to flicker at the same frequency as the buzzing.. This happens irrespective of whether the output is 50w or 300w. The KPA-500 is driven by a Flex-6700. Grateful to know if anyone else experiences this? I was expecting a very quiet unit but this buzzing is quite disconcerting. Dave G3SBP ______________________________________________________________ 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]

