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Application Note: “Microphone Selections for Polycom Vortex Devices” – 01/2006
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CROWN PCC170SWO
http://www.crownaudio.com/pdf/mics/101793.pdf
A surface-mounted supercardioid microphone with a programmable on/off switch. This microphone
includes extra conductors that can be wired to the logic ports on the Vortex.
SHURE MX392/C
http://www.shure.com/microphones/models/mxboundary.asp
Tabletop boundary style microphone with cardioid pickup pattern. /C stands for cardioid version. Has
unterminated ends – easy to put into mini phoenix connectors. Also has a sprogrammable push to talk
button.
SHURE MX393/C
http://www.shure.com/microphones/models/mxboundary.asp
Similar to MX392 but with mini-XLR connector.
III. Wireless Microphone Options
Many companies manufacture wireless microphone systems. As a resource to help you select a wireless
microphone system, we have provided links to various manufacturers’ websites, again in alphabetical order.
This list is by no means complete, but should give you a good sampling of the systems that are available for
installed room use. Note that a wireless microphone system will normally provide a line level output to
your Vortex product.
You should not use a wireless microphone system if security is an important issue. Wireless microphone
systems operate at radio frequencies, meaning the signal is not restricted to the room contatining the
microphones and can be picked up by someone with a scanner outside the room.
AUDIO-TECHNICA
Information on their wireless microphone products can be found at:
http://www.audio-technica.com
(follow links to Support, then to Using Wireless Systems)
This page contains useful information on selecting wireless systems as well as troubleshooting.