Mic ohm's?

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K8SWR
Posts: 56
Joined: Sat Jun 01, 2002 2:26 pm
What radios do you own?: Moto Syntor x9000

Mic ohm's?

Post by K8SWR »

I have a NMN6156B Ht Microphone and I'm Trying to find out What Ohm it is?? does anyone know?? :)
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k2hz
Posts: 531
Joined: Tue Mar 01, 2005 7:27 am

Post by k2hz »

The NMN6156B speaker mic has an electret microphone element and a 28 Ohm speaker.

Impedance is usually not specified for an electret microphone. If you are looking to replace it with with a dynamic, crystal or ceramic microphone where impedance is a concern, the answer is that those types are not compatible.
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K8SWR
Posts: 56
Joined: Sat Jun 01, 2002 2:26 pm
What radios do you own?: Moto Syntor x9000

Mic ohm's?

Post by K8SWR »

No I'm wanting to replace this Mic that is on a Kenwood ham radio It needs a 500 ohm Mic.
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k2hz
Posts: 531
Joined: Tue Mar 01, 2005 7:27 am

Post by k2hz »

The NMN6156B will only work on a radio designed for an electret mic. The electret mic element requires a bias voltage supplied from the radio.
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K8SWR
Posts: 56
Joined: Sat Jun 01, 2002 2:26 pm
What radios do you own?: Moto Syntor x9000

Mic?

Post by K8SWR »

Can someone give me a model number of a MOTO dynamic mic?? Hand or Desk prefer something readily available...
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