Williams Sound R863 - Manual (Page 2)

Hearing Helper ™ FM Receiver
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 and CHG 3502
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
*90 DAYS ON ACCESSORIES.
NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE.