For the Windows environment:
	Microsoft Windows 98 SE, ME, 2000, XP, or NT 4.0 with Service Pack 6 or later
	450 MHz or faster processor
	Internet Explorer 5.01 or greater
	256 MB RAM
	200 MB hard disk space is required
	CD-ROM drive (for installation)
	SVGA (800 x 600) or higher-resolution monitor with minimum of 16-bit color
	Available Serial port (for connection of PRS Receiver)
	Microsoft Office 2000, XP or 2003 (for PowerPoint Integration)
	Recommended system is Windows XP on a computer with a Pentium 4 processor, 256 MB RAM and 1024x768 resolution monitor with 32-bit color

For the Macintosh environment:
	OS X 10.3.9 or greater
	400 MHz or faster processor
	256 MB RAM
	200 MB hard disk space is required
	For PowerPoint integration, Microsoft PowerPoint 2004
	CD-ROM drive (for installation)
	SVGA (800 x 600) or higher-resolution monitor with minimum of 16-bit color
	USB to Serial Adapter (for connection of PRS Receiver)
	Recommended system is OS X 10.4 on a computer with a G4 867Mhz processor, 384 MB RAM and 1024x768 resolution monitor with 32-bit color

What batteries does the transmitter ("clicker") use and how long do they last?
A PRS transmitter uses two AAA batteries (one set of batteries is included with the purchase). The transmitter automatically shuts off after 15 minutes of inactivity, to help conserve the batteries. With fairly frequent classroom use, we find the batteries last about a year.

Does the transmitter ("clicker") have a built-in code so that students could have the same ID for all of their classes?
The most commonly used transmitter has a Fixed ID (6 digit). This can be assigned to individual students and responses recorded as such. There is also a Programmable ID version of the PRS transmitter that requires the school to ensure they are unique in a class and no duplication of numbers..

How are the receivers powered?
An AC power adapter is included with a primary receiver pack. Our standard AC adapter can power up to four receivers in a chain. We also offer a heavy duty power supply that can power up to 12 receivers in a chain.

How are the receivers connected to the computer?
The primary receiver set includes a three-way cable that connects to the serial port of the computer. If the computer does not have a serial port, a serial-to-USB adapter can be used and is available at an additional cost.

How are the receivers connected together?
The receivers are daisy chained in series with each other. Each receiver has an “in” and an “out” connection. The “out” connects to the computer or another receiver in the chain. The “in” is connected to the “out” of a receiver or left empty if it is the end of the line or the only receiver.

How are the receivers fastened?
There are several ways to do this. Each receiver has a threaded connection on the side that accepts a ¼” x 20 machine screw. GTCO CalComp sells an adjustable mounting bracket (see accessories page). The receiver is very light (about 4.5 oz.) and some have reported using self adhesive tape or Velcro.

Where should I place the receiver in a large classroom?
The receivers should be placed so that a given transmitter ( "clicker") signal is detected by only one receiver for efficient use of the PRS equipment. This can be accomplished by placement in separate locations in the room. In large lecture halls the receivers are often located in the ceiling or along the side walls. There are several ways to do this. Each receiver has a threaded connection on the side that accepts a ¼” x 20 machine screw. GTCO CalComp sells an adjustable mounting bracket (see accessories page). The receiver is very light (about 4.5 oz.) and some have reported using self adhesive tape or Velcro.

Receiver placement considerations include:
	Make sure height is sufficient to avoid any obstructions of the signal (e.g. the presenter, podium, etc.)
	Adjacent receivers should be kept 20-36 feet apart.
	In a tiered room, receivers on the side should be place higher than the ones toward the front of the room  so that people in the back of the room are pointing at a slightly upward angle.

When should I use the wireless transceivers to connect PRS?
The wireless transceivers are best used where the location of the computer relative to the receivers makes the installation either complicated or expensive. It allows the connection of the computer and one or more groups of receivers to be accomplished without cables. Some customers have reported that the wireless systems are a significant cost savings when it is necessary to hire a contractor or pay the Physical Plant staff to run receiver cables.