| Author |
Message |
    
Skilletlicker
| | Posted on Thursday, June 12, 2003 - 7:48 am: | 
|
what is the difference between a power mic and a
ampilied mic. lou franklin says the turner plus 3
is a power mic while the d104 is a ampified mic
thanks |
Alsworld
| | Posted on Thursday, June 12, 2003 - 11:20 am: |
|
Skilletlicker,
I am not familiar with the Turner mics, but some microphones such as on my Delta Force require voltage to operate (the radio puts out voltage on pin #6 of the Delta Force). Many ham radio microphones require this as well. It's probably the truer definition of a power mic than those such as a D104. The D104 needs an internal battery which powers the amplifier circuitry, which amplifies your modulation. The microphone itself requires no additional power to be supplied from the radio.
This is a 'shoot-from-the-hip' hurried answer and I don't think I put it correctly in words, but it may be enough to start some conversation and get you a full answer.
I wonder if my Delta Force mic (although "powered") would be considered an amplified microphone? It's not advertised as that, but it sure is loud!
Alsworld |
Viking
| | Posted on Thursday, June 12, 2003 - 3:16 pm: |
|
The voltage coming from the radio (8V +/-) is replacing the need for a battery (9V depending on mic). A heck of an idea. I thought of replcaing mic jacks to add one more pin to do just that. Maybe some day.
As far as the difference, I don't know. At first I would have thougt it was just semantics. But Mr. Franklin said there was a difference, there must be. |
Barracuda
| | Posted on Friday, June 13, 2003 - 10:28 am: |
|
As I understand it, the power from the radio to the mic may be used either to power an amplification circuit and/or the mic element if the element is an electret. If the latter there may be no amplification circuit in the mic itself. The power is needed to make the mic element itself work. Dynamic mics don't need this.
Barracuda |
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