Giulio, Your problem is easy to fix. I also use a Shure SM 57 on my K3.
It is a professional microphone, and is Low Impedance. You need to use an in-line impedance matching transformer. I use a Shure A95UF with an adaptor cable I made myself. They are inexpensive and work very well. Companies like Shure, Audio Technica, Radio Shack, Sescom, and many others make them. Here is an example: http://www.coutant.org/matching/5.html I'm sure you can find them in Italy. Cheers, Ken N6TZV Message: 14 Date: Wed, 11 Feb 2009 10:15:40 +0100 From: Giulio Pico - IW3HVB <[email protected]> Subject: Re: [Elecraft] Dynamic Mics on K3 To: [email protected] Cc: [email protected] Message-ID: <[email protected]> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Don Wilhelm ha scritto: > Giulio, > > You did not say what microphones you were trying to use, only that > they were 'dynamic'. > Currently I'm using a Shure SM57 dynamic mic. The others are brandless or unknown. 73 de Giulio IW3HVB ______________________________________________________________ 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

