[Boatanchors] Microphones

[W4AWM at aol.com]

100 to 10K is the frequency response.  There is no particular  impedance 
choice. Some rigs are lowZ and others are hi Z.  If the rig you  want to use 
that particular mic is Hi Z,  matching transformers are  available to make 
the conversion.
 
73,
 
John,  W4AWM
 
 
 
 
.
 
 
In a message dated 10/13/2012 8:14:32 P.M. Eastern Daylight Time,  
bluegrassdakine at hotmail.com writes:

I have a  couple mics that I got fr mil surplus and all I can find on them 
is be 100 to  10k BW, and it says imp of 150 ohms. Other discussions on 
these lists state  that some radios are hi z and some are low z. What is or what 
are the common  accepted  input req for  mics?