Williams Sound R863 - Manual

Whisper

™

FM Receiver

•

Model R863

Whisper

™

FM Receiver •

Model R863

©2007, Williams Sound Corp. MCAT 059A

1

NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE!

Description:

The R863 is a portable, body-pack style FM receiver with user-selectable operating frequencies of
863.25 MHz, 863.75 MHz, or 864.75 MHz. The R863 receiver will operate up to 30 meters (98 feet)
when used with the Williams Sound T863 transmitter. The receiver is showcased in a black,
ergonomic, impact-resistant case, and is belt-clip equipped for hands-free operation. Controls
include an adjustable volume control, integrated on/off/channel switch, and power ON indicator
LED. Drop-in charging points allow up to 12 receivers to be charged at once in the optional
CHG 3512 multi-charger. The R863 receiver will operate on two AA batteries for up to 40 hours, or
30 hours per charge when used with Williams Sound rechargeable batteries. The R863 can be
equipped with a headphone, earphone, or neckloop.

Applications:

• Tours • Language Interpretation • Hearing Assistance

Dimensions:

115 mm H x 72 mm W x 30 mm T
(4.5” H x 2.85 W x 1.2” T)

Weight:

85 grams (3 oz.), no batteries

Color:

Black

Material:

ABS/Polycarbonate, shatter-resistant

Battery Type:

Two (2) AA 1.5 V Non-rechargeable Alkaline batteries
(BAT 001), 50 mA nominal current drain, 40 hours approx. life
(OR)
Two (2) AA 1.2 V NiMH Rechargeable batteries (BAT 026),
50 mA nominal current drain, 30 hours per charge approx.,
recharges in 14–16 hours, uses CHG 3512 Multiple Battery
Charger

Operating Frequencies:

CH 1 - 863.25 MHz; CH 2 - 863.75 MHz;
CH 3 - 864.75 MHz ( ± 30 kHz)

Operating Range:

30 meters (98.4 feet) with T863 transmitter

Stability:

± .05 MHz, 0 - 50° Celsius

FM Deviation:

60 kHz ±5 kHz, transmitter input at 1 kHz, 2.5 mV

De-Emphasis:

50 µS

Sensitivity:

< - 90 dBm @ 60 kHz deviation

Squelch:

-100 dB @ 6 kHz

Freq Response:

500 Hz - 5 kHz, ±3 dB

Distortion:

< 2.0% THD

Signal–Noise Ratio:

>50 dB ( ± 5 dB) with transmitter input at 1 kHz, 2.5mV

Antenna:

Internal wire monopole

Controls & Indicators:

Volume control knob; Channel selector (four position rotary
switch): Position 1 is off; position 2 is CH1; position 3 is CH 2;
position 4 is CH 3
Power on indicator: Red LED “on” indicates when receiver
has power
Low battery indicator: Power LED flashes when batteries are
low
Battery selector: Slide switch for alkaline or NiMH battery
operation

Headphone jack:

3.5 mm jack, mono output, 8-32 ohm impedance

Charging Contacts:

Designed for use with CHG 3512 Battery Charger

Approvals:

CE, RoHS, WEEE, ETSI EN 301 357-1, ETSI EN 301 357-2

Warranty:

3 years parts and labor (90 days on accessories)

R863 Receiver:

O

On/Off/Channel
Selector Switch

Volume Control

Earphone/Headphone Jack

"On" Indicator LED

R863 Top

R863 Front