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Whisper
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FM Receiver
• Model R863
Whisper
™
FM Receiver
• Model R863
©2007, Williams Sound Corp. MCAT 059A
2
Bid Specs:
The R863 shall be a portable, belt-pack equipped wide-band receiver. The unit shall have three user-
selectable operating frequencies of 863.25 MHz for CH 1, 863.75 MHz for CH 2 and 864.75 MHz for CH 3.
The R863 shall be housed in a black polycarbonate impact-resistant enclosure and feature a 3.5mm ear
jack that can accept stereo or mono earphones.
The receiver shall include an adjustable volume control, integrated on/off/channel selector and power
ON indicator LED. The power ON LED shall flash to indicate low battery.
The receiver shall operate on two AA alkaline batteries for approx. 40 hours of operation or 30 hours
when using Williams Sound NiMH rechargeable batteries (BAT 026). The receiver shall have drop-in
charging points for charging with the optional CHG 3512.
The R863 shall have an operating range of approx. 30 meters (98 feet) when used with the T863 trans-
mitter, and shall a signal to noise ratio greater than 50dB and 60 kHz deviation.
The R863 shall have CE, ETSI EN 301 357-1, ETSI EN 310 357-2 approvals, and be compliant with RoHS and
WEEE regulations. The unit shall have a three year parts and labor warranty.*
The receiver shall be the Williams Sound Corp. model number R863.
NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE!
*90 days on accessories.