Heil's quality control *sucks*. Their cables are notorious for reversing mic return and chassis ground (shield/PTT return) and/or connecting the mic return to the shell of the Foster plug instead of the mic return pin.
Use an ohm meter and make sure that pin 1 of the XLR (shield/shell) is connected to the *shell* of the Foster plug and pin 3 of the XLR (mic return) is connected *only* to pin 7 of the Foster plug. Connecting pin 7 of the Foster plug to the shell (particularly at the XLR end of the cable) is a sure fire way to make any RFI problem in your shack/installation exponentially worse. 73, ... Joe, W4TV On 3/26/2017 12:31 PM, Jim Kutsch wrote:
I am a new K3S owner and very pleased. However, on SSB, I am getting reports that my audio is distorted sounding like RF is getting into the microphone. I'm using a Heil PR-781 with the XLR3 to 8-pin microphone adapter cable. I had some RF microphone issues earlier using the PR-781 with a KX3 but a better shielded mic cable and a common mode choke resolved it. Any suggestions before I go in search of a different mic? Also, any recommendations for a boom mount microphone that would be a better choice for the K3S than this PR-781? Thanks and 73, Jim, KY2D ______________________________________________________________ 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 li...@subich.com
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