Earphone/Headphone Jack

Personal FMListening System • Model PFM 863

ADA

R863 Receiver

Personal FMListening System Model PFM 863

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; posi-

 

tion 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)

 

On/Off/Channel

"On" Indicator LED

Selector Switch

O

Volume Control

R863 Top

R863 Front

NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE!

 

©2007, Williams Sound Corp. MCAT 061A

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Williams Sound PFM 863 specifications Personal FM Listening System Model PFM, R863 Receiver

PFM 863 specifications

The Williams Sound PFM 863 is a versatile and high-performance personal FM listening system designed to meet a variety of audio communication needs in different environments. This advanced device is particularly useful for those who require hearing assistance during lectures, presentations, or in other public spaces. The PFM 863 offers numerous features and technologies that make it a popular choice for both individuals and organizations.

One of the key features of the PFM 863 is its excellent sound quality. The system operates on the FM frequency band and utilizes sophisticated audio processing technologies to ensure that the sound is clear and intelligible. The device supports a wide frequency response, allowing it to deliver rich audio that enhances the listening experience, even in noisy environments.

The PFM 863 is equipped with a robust transmitter capable of broadcasting signals over a considerable distance. This transmitter can be connected to various audio sources, including microphones and audio output from computers or televisions. The flexibility in connectivity means that users can adapt the system to different settings, ensuring that everyone in the vicinity can benefit from the enhanced audio output.

Another significant characteristic of the PFM 863 is its user-friendly design. The device features intuitive controls, making it easy for users of all ages to operate. The unit is lightweight and portable, allowing it to be easily transported from one location to another. This portability makes it an ideal choice for schools, theaters, churches, and other venues where hearing assistance is required.

In terms of technology, the PFM 863 employs advanced frequency modulation techniques to minimize interference and optimize reception. The system also includes features such as noise filtering to enhance clarity and minimize background noise, ensuring that users can focus on the audio content without distraction.

Additionally, the PFM system supports multiple receivers, allowing several individuals to benefit from the same transmission simultaneously. This feature is particularly advantageous in group settings, where multiple listeners can connect to the same audio source using their personal receivers, promoting inclusivity and enhancing the overall communication experience.

Overall, the Williams Sound PFM 863 listening system is an exemplary solution for those seeking high-quality audio assistance. Its outstanding performance, user-friendly design, and advanced technologies make it a reliable choice for enhancing communication and accessibility across various environments.