Personal PA® FM Listening System, Model PPA 575

Description:

The T35 transmitter features 77 narrowband and 10 wideband channels for maximum reduction of outside radio interference. With easy to use push-button controls, powerful microprocessor, the T35 champions the next generation of hearing assistance technology. Quickly choose between Music, Voice or Hearing Assistance in the Application Presets Menu and take the guess work out of complex audio installation. The PPA 575 has a range of up to 1000 ft to accommodate all your large-area coverage needs. The PPA 575 system comes complete with four (4) R19 narrowband FM receivers with EAR 013 earphones and batteries.

Applications:

• Churches • Schools • Auditoriums • Conference Rooms • Theaters

PPA T35 Transmitter:

Dimensions, Weight:

8.45" (21.5 cm) W x 8.18" (20.8 cm) D x 1.72" (4.4 cm) H, 3.1 lbs (1.4 kg)

Color:

Black with white legends

Rack Mount:

One EIA rack space high, 1/2 space wide

 

1–2 units can be mounted in a single rack space with optional RPK 005 (single) or RPK 006 (double) Rack Mount Kits

Power:

Wall mount Class II transformer (TFP 016)

 

Input: 120 VAC, 60 Hz, 17 W

 

Output: 24 VAC, 500 mA with 3-pin Molex® plug

 

Approvals: UL, CSA listed

Temperature Range:

Operating:

0° C to 40° C (+32° F to +104° F)

 

Storage:

-20° C to 70° C (-4° F to +158° F)

FCC ID:

CNMT35

 

Operating Freqs:

72.1–75.9 MHz , 10 wideband channels (selectable), 7 non-standard wideband channels (selectable)

 

OR 72.025-75.975 MHz, 77 narrowband channels (selectable)

Frequency Accuracy:

± .005% stability, 0-50˚ C

Deviation:

Wideband: ± 75 kHz maximum. Narrowband: ± 5 kHz maximum

Pre-Emphasis:

Wideband: 75 µsec. Narrowband: 300 µsec

RF Field Strength:

Does not exceed 8 mV/m at 3 m

Nominal Range:

Up to 1000 ft (304 m)

Note:

Maximum transmitter range is achieved using the ANT 005 coaxial antenna

Audio Proc. Functions:

Reduced or Normal Compressor Gain

 

Compression Slope Control

 

High Pass and Low Pass Filter Frequency control

Frequency Response:

22 – 16000 Hz, +1, -3 dB (adjustable)

Signal-to-Noise Ratio:

74 dB transmitted

T35 Front Panel

 

 

+9

Input

 

 

 

+6

Digital Frequency Synthesized

 

 

Overload

 

 

+3

+

 

 

 

0

Audio

 

 

 

-3

 

 

 

Level

 

 

 

-6

–

 

 

 

-9

 

 

 

On Air

-12

 

 

 

-15

 

 

Power

 

PPA T35

 

 

-18

 

 

 

 

 

^

-

+

 

^

 

Set

Source

+

Volume

-

Phones

Audio Level Control:

Push-button audio level controls, adjustable from 0 to -50 dB

Audio Level Indicators:

10 LED array that reads +9 to -18 at 3 dB intervals

Power On Indicator:

Green LED indicates power on

Phones Output:

Mono signal, 1/4" TRS stereo jack, 67 mW, maximum in 50 ohms (adjustable 0 to -40 dB)

Audio Input:

Combination 3-pin XLR, 1/4" TRS jack

Line Output:

RCA jack, -10 dBV (.32 VRMS) output, impedance 100 Ω

LCD Menu Controls:

Applications Presets (Music, Voice, Hearing Assist)

(Push-Button Selection)

Bandwidth, Frequency, Audio Input Source (Microphone, Line, Simplex), High Pass Filter, Low Pass Filter,

 

Compressor Slope, Compressor Gain, RF Output Power

NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE!

Williams Sound ®

©2005, Williams Sound Corp. CAT 102B

Helping People Hear

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Williams Sound PPA 575 specifications Description, Applications, PPA T35 Transmitter, T35 Front Panel
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PPA 575 specifications

The Williams Sound PPA 575 is an advanced personal listening system designed to enhance audio experiences in various environments, from classrooms to theaters and outdoor events. This device stands out for its user-friendly features and robust technologies, offering impeccable sound quality and versatility for users needing assistance with hearing.

At the core of the PPA 575 is its reliable FM technology, which operates at a frequency range of 72-76 MHz. This ensures that users receive clear transmissions without interference from other electronic devices, making it particularly effective in crowded settings. The system is engineered to deliver a strong, distortion-free audio output, allowing users to engage fully with presentations, performances, or conversations.

One of the defining characteristics of the PPA 575 is its compact and portable design. Weighing just a few ounces, it can be easily carried or worn around the neck using the supplied lanyard. The unit features a simple interface with clearly marked buttons, enabling users to adjust volume levels effortlessly. Additionally, the PPA 575 is equipped with a built-in speaker and a headphone jack, providing flexibility in listening preferences.

Another key feature is its compatibility with various receivers, including the PPA R37 and PPA R38, allowing several users to connect simultaneously. This scalability makes it an ideal choice for group settings, ensuring everyone receives the same high-quality audio experience. Furthermore, the PPA 575 operates on standard AA batteries, which offer extended usage time, enhancing its practicality for long events.

The system also includes advanced technology, such as automatic gain control, which adjusts the audio output based on the input signal, ensuring consistent sound quality. With excellent range and battery life, the PPA 575 ensures that users experience minimal interruptions during critical moments.

In conclusion, the Williams Sound PPA 575 is a versatile and reliable personal listening system that provides essential auditory support in various settings. Its combination of user-friendly features, cutting-edge technology, and superior sound quality makes it an invaluable tool for individuals seeking to enhance their listening experience while ensuring accessibility to sound. This product represents a significant step forward in personal assistive listening devices, making communication clearer and more inclusive for all.
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