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Microphone cartridge test

How can I test the microphone element in an amateur radio microphone?

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  • 19 Answers

SOURCE: Standard Microphone Wiring

Pin 1 is Shield(most mics this wire is bare copper) Pin 2 is Audio wire(most mics this wire is white) Pin 3 is Transmit(most mics this wire is red) Pin 4 is receive(most mics this wire is black)

Posted on Aug 01, 2007

  • 1 Answer

SOURCE: QuickCam mic doesn't work

For XP users,try:
>Start
>ControlPanel
>Sounds and Audio Devices
>Audio
>Sound Playback
Click on drop down menu arrow.
If there are two audio devices listed: Deselect current device; select second device.
>OK

Posted on Dec 10, 2007

Communicomm
  • 90 Answers

SOURCE: microphone wiring diagram

What is the model number?

Posted on Sep 05, 2008

Geekman
  • 32281 Answers

SOURCE: My internel microphone doesn't work with Skype -

You need to check the Microphone setting in Skype.
Open Skype, Click on Tools - Audio Settings, then in Microphone settings click the down arrow and select the built-in microphone then save the settings.
If the microphone you selected doesn't work then select a different one.

Posted on Jul 04, 2009

  • 1 Answer

SOURCE: Logitech QuickCam Express: Microphone not working

The quick cam express and quickcam chats are the only two models built without a mic in the camera.

Posted on Sep 08, 2009

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2 Answers

Galaxy saturn has recieve but no modulaton


It sounds like your microphone has a problem. Test it on another radio and/or check the connections in the microphone connector. This is a very common problem on any radio. If you have the same problem on the other radio, then the problem is your microphone. Other wise, take the radio in for repair.

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Have you tried another mic. First guess microphone wire broke or broke solder for audio wire in mic jack at mic cord.

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check the fuse and power to the radio, if they are good, have the radio serviced

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Just about any mic will do. I have used a Midland, Motorola, GE, Radio Shack and other microphones on these radio's. The mic element must be dynamic. Condenser microphones would require you to slightly modify the mic input circuit of the KLM to provide 5 to 10VDC through a 4K7 resistor to provide bias for the condenser element. It's easy to do if you have the skills to do it.

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1 Answer

Everyone tells my my modulation is low


A lot would depend on the radio and the microphone being used.

Stock microphones will sound low, with a stock one take very close and right across the face of the mic.

Also stock radios are likely to sound muffled or stock.

Depending on the radio the modulation inside may be able to be turned up or if it has a mic gain on the front turn that up.

Some of the small Cobra and Uniden radios use a 1000 ohm microphone (the element impedance just like speakers).

Changing the mic for a older 500 ohm mic and wiring it for that radio will make a large difference in audio and how the radio sounds on the other end.

There are other options as well but I would need to know brand and model number.

Dec 20, 2012 | Radio Communications

1 Answer

How to i test to see if a mic element is still working


The easiest way is to plug it into a mixing desk or microphone input on a sound card. However, whichever you do you will need phantom power as this microphone requires it.

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It depends on the model number of the transmitter.The "SM58" is just the cartridge on the top.

Nov 23, 2010 | Shure SM58 Professional Microphone

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My sm58 beta distorts.Is the mic element hard to change out?


If you know how to use a soldering iron, the element is easy to switch out. However, it is probably less expensive to send the mic to Shure. That is the cartridge might cost more than the flat fee repair charge that Shure Service charges.

Jun 18, 2010 | Shure Beta 58A Professional Microphone

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How to change frequency of shure lx88 II station?


It is not user changeable. Contact Delta Audio at 773-764-3634. They have the parts and test equipment needed to perform this modification.

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2 Answers

Microphone dead - samsung SPH - M500


I have the same issue - ever solve it?

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