K3 is not an analog radio. Mic goes to a fixed gain op amp, an AF multiplexer switch, and then to analog-digital conversion and number soup. All sanity and/or weirdness is digital sanity and/or digital weirdness.
Whistling is usually 20-30 db louder than your spoken voice. That's why people whistle when a shout doesn't make it. Takes a practiced whistler to whistle softly. More like trying to play a woodwind intrument. I'm sure some couldn't whistle soft to save their lives. My mother couldn't, but she didn't need to. In my growing up neighborhood, every mom had a distinctive whistle to round up their kids. I could hear that whistle over the rumble of the big planes over on the runways at Kirtland AFB, and she would never take "I didn't hear it" as an excuse. But I digress... You're expecting hi-fi whistling into a mic? Not many voice mikes will tolerate whistling and are already into distortion in the element at that point. Why should a designer/manufacturer of a communication rig spend any time/money to make sure a whistle is hi-fi? If you CAN whistle softly, try whistling at a level that only shows ALC of 3 or 4 when the MIC/CMP is set up for your voice. Turn off MON unless you are using headphones. Listening to MON on a speaker while using a microphone seems to be third grade bad operating practice and begs for SOME kind of distortion from looping audio. Since this is a digital radio, the artifacts from looping audio and/or smash-mouth overload may not be the familiar analog symptoms. I'm really not sure you're reporting a "trouble". But at least we haven't had anyone reporting that the K3 case is weak because it got bent after being dropped out of an airplane. 73, Guy On Mon, May 3, 2010 at 7:26 AM, juergen <[email protected]> wrote: > Hi > > Just noticed this when playing around with the K3's monitor. > > With the Gate off > EQ flat > MH2 hand MIC > TX test mode > Band 7mhz > > While whistling there is a odd artifact. If I whistle I get a sound that > sounds like a oscillator pulling in a receiver. I dont get any odd sounds > with normal voice testing > > .With a continuous whistle I get this artifact that is a mirror of the > whistle, however it seems to shift frequency or pull the louder you > whistle.It might be a IMD product? I have never noticed this before in the > K3's monitor. I will also check the clubs K3's and report back. > > Anyone else get this? > > John > ______________________________________________________________ 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
