Hearing Helper® FM Receiver

Product Highlights

  • Optimized for European markets 
  • impact-resistant case
  • Range of up to 30m (98 ft.)


The R863 is a portable, body-pack style FM receiver with user-selectable operating frequencies of 863.25 MHz / 863.75 MHz / 864.75 MHz. Black, ergonomic, impact-resistant case. Belt-clip included for hands-free operation. Will accommodate a variety of headphone, earphone or neckloop options.

NOTE: The operating frequency on the R863 receiver is optimized for European markets. The receiver can not be used in all countries. Check with your government´s radio regulations for 863 MHz (NOT 173 - 174MHz) operation.

System Includes

(1) R863 FM Three-channel selectable receiver
(1) Belt clip

Earphones and batteries sold separately.



  • Range of up to 30m (98 ft.) when used with the Williams Sound TGS T863 transmitter
  • Adjustable volume control
  • Integrated on/off/channel switch
  • LED Power ON indicator
  • Up to 12 receivers can be charged at once in the optional CHG 3512 multi-charger.
  • 40 hours of use– (2) BAT 001 AA alkaline batteries
  • 30 hours of use per charge – (2) BAT 026 AA rechargeable batteries



R863 Architectural and Engineering Specifications

  • 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 transmitter, 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 model number R863.



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


85 grams (3 oz.), no batteries




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
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


± .05 MHz, 0 - 50° Celsius

FM Deviation:

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


50 µS


< - 90 dBm @ 60 kHz deviation


-100 dB @ 6 kHz

Freq Response:

500 Hz - 5 kHz, ±3 dB


< 2.0% THD

Signal–Noise Ratio:

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


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


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


3 years parts and labor (90 days on accessories)

Other Models

TGS 863 Hearing Helper® FM tour guide system
TGS T863 FM Three-channel selectable transmitter

Accessories for Hearing Helper® FM Receiver

All Williams Sound headphones and earphones are compatible with this product.

BAT 001 AA Alkaline Battery

CHG 3512 Body-pack charger, 12 bay

Products compatible with Hearing Helper® FM Receiver

  • T800 - Hearing Helper® Base-Station Assistive Listening Transmitter
  • T863 - Hearing Helper® FM Assistive Listening Transmitter


Download/View Name Type Language
R863 Specifications Specifications English
R863 Hearing Helper® manual Manuals English


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