Re: [Elecraft] Pro Audio Engineerint power Supply
Several years ago, Howard sent me one to test. It was very quiet when only powering my KX3 on receive, which draws only about 150 mA. When I used it to supply something that drew 4A, it was noisy. So the question is, are you using it power anything else in addition to the KX3? A good common mode choke made by winding the right number of turns of the power cord around the right #31 core should suppress the noise. You should also make certain that everything in your station is properly bonded. See http://k9yc.com/GroundingAndAudio.pdf You should also make certain that if you are using an end-fed wire antenna that you have provided a suitable counterpoise for it. 73, Jim K9YC On 9/30/2019 2:44 PM, Terry Basom wrote: When I plug in the PAE-Kx33 power supply to my KX3, I get a huge amount of hash noise. It's supposed to be low-RFI Anybody with a similar problem? Any suggestions? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Pro Audio Engineerint power Supply
Hi Terry, While it is possible your Kx33 has developed a problem, it is more likely your antenna system has high common-mode potential which is commutating through the Kx33 to the AC mains. We supplied a mix31 ferrite core with your supply to make a common-mode choke to help with these types of antenna system issues. I would be glad to help you, please email our tech support at: i...@proaudioeng.com Cheers & 73, Howard Hoyt / WA4PSC www.proaudioeng.com >>When I plug in the PAE-Kx33 power supply to my KX3, >>I get a huge amount of hash noise. It's supposed to be >>low-RFI Anybody with a similar problem? >>Any suggestions? >>Thanks >>Terry VE3IQL -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Pro Audio Engineerint power Supply
When I plug in the PAE-Kx33 power supply to my KX3, I get a huge amount of hash noise. It's supposed to be low-RFI Anybody with a similar problem? Any suggestions? Thanks Terry VE3IQL __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
