On Wed, 17 Feb 2010 09:26:53 -0500, kd4e wrote:
>Would the little mics one sees hanging from
>the ceiling over church choirs be more prone
>to RFI in a Ham setup?
It depends on make and model. Products introduced more than about five
years ago nearly all have serious pin 1 problems in the impedance
converters that connect them to balanced audio cables, and the cables
on either side of the impedance converter makes a great receiving
antenna. The tiny mic capusules themselves are generally not
susceptible. The same problems occur in the miniature "lavalier" mics
connected to wireless systems, and to miniature mics that mount on
podiums.
Shure and Audio Technica are two very good mfrs of mics like this
whose older products were RFI dogs but whose newer products have fixed
the problem. I've done consulting work for both companies on exactly
this topic. :)
What were you thinking of doing with a mic like this?
73,
Jim Brown K9YC
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