Copper Talk » Open Forum » Archived Messages » 2002 » Archived Messages 02/01/2002 to 04/31/2002 » Microphone impedance « Previous Next »

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mr._fantastic
Posted on Friday, March 15, 2002 - 4:31 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)
How do you test microphone impedance? Can you do it with a multimeter?

Thanks
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bruce
Posted on Saturday, March 16, 2002 - 6:31 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)
you cannot use a multimeter impedance is usaly spected at 1khz so you would have to have a meter feeding that frequency to it... there are meters made to do this...as a rule magnetic ( dynamic) are low imp and ceramic or crystal are high imp... if you look at most cb dynamic mikes they are 600 ohms crystal mikes are as high as 1 MEG ohm
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RCI2990
Posted on Saturday, March 16, 2002 - 12:40 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)
Do it the way i do it.. LOL. Just hook up the mike to the radio and if it doesnt work or sound good well, dont use it!!!! ;-)
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bruce
Posted on Saturday, March 16, 2002 - 5:32 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)
there you go makes sence to me