Quoted:High impedance radio, low impedance headset. I hear traffic even better than from the radio's built-in speaker, but when transmitting the signal is very faint and sounds like I am talking through a Huey's rotor blades.
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When you have a low impedance, dynamic microphone element and need to interface it to a radio that is designed to work with a high impedance, electret microphone element, then you need to do one of two things:
a) Add a proper impedance adapter. For avionics this is
easy. All that expensive box is is a mic preamp that is powered by the mic bias voltage coming out of airplane/radio. But since we don't know what the microphone bias voltage is coming out of the DP series radio it's a crapshoot whether this would work or not. Same thing for the DISCO, plus with the DISCO you've got a connectorization challenge.
b) Swap the microphone element on your mic boom to a high impedance, electret type element.
This is the surest method. Go find a high impedance headset mic element. They are a dime a dozen because all CIVILIAN aircraft headsets use them. Beg/borrow/steal a CIVILIAN aircraft headset (military aircraft headsets are low impedance) and do some surgery.
Note that this method assumes that there is a direct connection between the radio and the mic element and that your PTTs and adapters don't do any bullshit to that connection.
The Tier 1 guys I know have all the real equipment, so are not as much help as one would believe.
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Oh I believe. They know how to use it, but they don't know what makes it work or how it works. However that doesn't make them much different than most anyone else. That's why your question comes up at least twice, if not three times a month here alone. No doubt it's much more often on the airsoft forums. And, since most folks don't know how to even read a schematic, nobody does any real engineering, it just becomes this game of swaptronics, where once the magic formula is obtained it goes out on all the airsoft forums everywhere.
Snarf/scam/beg/borrow/steal a CIVILIAN aircraft headset. Get some clip leads. If the mic element works, do some surgery. Or you can
buy high impedance electret elements easy enough. It's still a crapshoot because without detailed spec's, schematics and/or pinouts nobody can really tell you what will work or not. You just have to try it.
Let us know how you make out.