Williams Sound PPA 575 User Manual

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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-buttoncontrols, 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 yourlarge-areacoverage 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

 

 

1–2units 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-pinMolex® 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:

 

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

 

 

OR 72.025-75.975MHz, 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, -3dB (adjustable)

Signal-to-NoiseRatio:

 

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-buttonaudio level controls, adjustable from 0 to-50dB

Audio Level Indicators:

10 LED array that reads +9 to -18at 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 -40dB)

Audio Input:

Combination 3-pinXLR, 1/4" TRS jack

Line Output:

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

LCD Menu Controls:

Applications Presets (Music, Voice, Hearing Assist)

(Push-ButtonSelection)

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

1

Personal PA® FM Listening System, Model PPA 575

T35 Rear Panel

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

INPUT LEVELS (Bal or Unbal):

Nominal (1st Amber LED)

Maximum (Input Overload LED)

Absolute Maximum Ratings*

 

 

 

 

 

 

 

Microphone Simplex-Mic:

-60dBV (1mVRMS)

-20dBV (100 mVRMS)

+20 dBV (10.0VRMS)

 

 

 

 

 

 

 

Line:

-8dBV (400mVRMS)

+16 dBV (6.3 VRMS)

+20 dBV (10.0VRMS)

 

 

 

 

 

 

 

Simplex Mode:

12 volts simplex power (DIN 45596) on the 3-pinXLR connector

 

 

 

 

 

 

 

 

 

 

 

 

RF “Off” Timer:

Turns off RF signal after 1 hour of no audio activity

 

 

 

 

 

 

 

 

 

 

 

 

Common Mode Rejection:

> 57 dB @ 1 kHz, Mic or Line

 

 

 

 

 

 

 

 

 

 

 

 

 

Total Harmonic Distortion:

< 0.25% @ -10dBV audio line output, 1 kHz

 

 

 

 

 

 

 

 

 

 

 

 

Warranty:

5 years, parts and labor**

 

 

 

 

 

 

 

 

 

 

 

 

 

*Note: Stresses above these ratings may cause permanent damage. Exposure for extended periods may degrade reliability. **90 days on cords, antenna, power supply and accessories.

PPA R19 Receiver:

Model PPA R19:

2-Channel,pre-tuned,selectable CH 33 (72.9 MHz), CH 53

 

(75.7 MHz) standard 10 channels available (72.1-75.9MHz)

Model PPA R19–6:

6-Channel,pre-tuned,selectable

 

CH 13 (72.1 MHz), CH 23 (72.5 MHz),

 

CH 33 (72.9 MHz), CH 53 (75.7 MHz)

 

CH 38 (74.7 MHz), CH 43 (75.3 MHz)

Dimensions:

3-5/8"L x2-3/8"W x 7/8" H (92.1 mm x 60.3 mm x 22.2 mm)

Weight:

3.2 oz (90 g) with battery

Color:

Neptune Blue

Battery Type:

(2) BAT 001 AA Alkaline or (2) BAT 026 NiMH

Battery Drain:

20 mA, nominal

Battery Life:

90–100hrs with 2 AA Alkaline,

 

45-50hrs/charge with BAT 026

Operating Freq:

Crystal controlled. See factory for frequency

 

changing instructions.

Intermediate Freqs:

10.7 MHz, 455 kHz

FCC ID:

CNMR19

Earphone:

Earbud-typewith foam cushion, 3.5 mm plug, 32 Ω

Output Connector:

3.5 mm mini phone jack

FM Deviation:

Narrow–band,5 kHz

De-Emphasis:

300 µS

Sensitivity:

0.7 µV at 12 dB Sinad

Squelch Level:

4 µV for minimum 40 dB S/N ratio

Frequency Response:

100 – 5 kHz, ± 3 dB (Tone: Lo)

Receiver Antenna:

Integral with earphone cord

Signal-to-NoiseRatio:

50 dB

Audio Output:

35 mW, max. at 16 Ω (Tone: Lo; 3 VDC Bat.)

Acoustic Output:

125 dB Max SSPL90 with EAR 013

CONTROLS

 

Tone:

Switched Low-Cut.Lo: 20 Hz / Mid: 120 Hz / Hi: 700 Hz

Volume & On/Off:

Combination, integral

Channel Selector:

PPA R19: 2-position,slide switch

 

PPA R19-6:6-position,rotary switch

Warranty:

5 years (90 days on accessories)

 

 

Tone Controls

 

 

 

Earphone/

 

 

 

 

 

Volume/

Charging

EAR

Volume

Channel

On-Off

Jack

Control

 

Lo Mid Hi

 

1

2

 

 

2

 

 

 

 

 

 

Tone

 

 

 

 

Power

 

Off

Max

 

 

Channel

 

 

 

 

 

On/Off Indicator

 

R19 Top

 

 

Switch

 

 

 

 

 

 

 

Tone Controls

 

 

 

Earphone/

 

 

 

 

 

Volume /

 

 

 

 

 

On-Off

Charging

Ear

Volume

 

 

 

 

Control

Jack

 

Lo Mid Hi

 

1

 

 

 

 

 

 

 

 

Tone

 

 

 

 

Power

 

Off

Max

Channel

Channel

 

 

 

 

 

On/Off Indicator

 

 

 

 

 

Switch

R19-6Top

Williams Sound

R19 / R19-6

Front View

Williams Sound ®

©2005, Williams Sound Corp. CAT 102B

Helping People Hear

2

Personal PA® FM Listening System, Model PPA 575

Bid Specs:

PPA T35 Transmitter

The PPA T35 transmitter shall be microprocessor controlled with push button configuration. It shall have an operating range of up to 1000 feet. It shall have 10 wideband and 7 non-standardwideband channels operating on72.1-75.9MHz. It shall have 77 narrowband channels operating on72.025-75.975MHz.

Front Panel:

The PPA T35 shall have a push button controlled LCD digital display. There shall be three pre-configured(selectable) application presets: Hearing Assist, Music and Voice. Configurations for Bandwidth, Frequency, Audio Input Source (Microphone, Line, Simplex), High Pass Filter, Low Pass Filter, Compressor Slope, Compressor Gain and RF Output Power shall be push button controlled. The audio level shall be adjustable by push button control. There shall be a 10 LED array showing +9 to-18at 3 dB intervals. The PPA T35 shall have a 1/4" phone jack with push button volume control. It shall have push button control for monitoring source audio or transmitted audio. It shall have an input overload indicator. It shall have a “on” indicator and power button.

Rear Panel:

The PPA T35 shall be powered by 24 VAC power supply via a 3-pinMolex® connector. It shall have a 75 ohmF-connectorantenna. It shall have a “rubber duckie” antenna on the top panel directly connected to the circuit board. The transmitter shall have an RCA line output jack. It shall have a combination 1/4" phone/XLR audio input jack. It shall have an RF “Off” timer that turns off RF signal after 1 hour of no audio activity.

The PPA T35 shall have FCC approval and be powered by UL and CSA power supply. It shall have a five-yearparts and labor warranty. It shall be compatible with Williams Sound FM equipment operating on72-76MHz. The transmitter shall be a Williams Sound Corp. model number PPA T35.

PPA R19 or R19-6Receiver

The receiver shall be encased in a blue, polypropylene impact-resistantplastic with a single hinged door for battery installation. The receiver shall be abody-packtype and have the option for abelt-clipcase forhands-freeoperation. The receiver shall have a 3.5 mm mono phone jack and accommodatelow-impedancemono earphones, headphones, and neckloops telecoil couplers. The receiver shall have a combination volume control and power on/off rotator dial, and a green LED power “on” indicator. The receiver shall be crystal controlled to reduce frequency drifting. The R19 receiver shall have 10 available channels: Two channels shall be selectable by a2-positionslide switch andpre-tunedfrom72-76MHz. TheR19-6receiver shall have six channelspre-tunedfrom72-76MHz and adjustable by a channel rotary dial. The receiver shall have an adjustable3-positiontone control switch to select Low (20 Hz), Mid (120 Hz), or Hi (700 Hz) operation. The receiver shall operate up to approx. 100 hours when using 1.5 V AA Alkaline batteries, and shall operate up to approx. 50 hours when using 1.5 V NiMH rechargeable AA batteries.

The receiver shall receive FM signals in the 72-76MHz audio assistance band with 300 µSde-emphasis.The receiver shall provide a maximum output of 35 mW at 16 ohms with anearbud-typeearphone. The system’s electrical frequency response shall be 100 Hz to 5 kHz, ± 3 dB and thesignal-to-noiseratio shall be 50 dB at 10 µV. The receiver shall have a sensitivity of 0.7 µV at 12 dB Sinad.

The receiver shall be covered by a five-yearparts and labor warranty, excluding earphones, headphones, batteries and chargers. The receiver model shall be the Williams Sound Corp. model PPA R19 or model PPAR19-6receiver model shall be the Williams Sound Corp. model PPA R30.

NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE!

Williams Sound ®

©2005, Williams Sound Corp. CAT 102B

Helping People Hear

3

Personal PA® FM Listening System, Model PPA 575

Contact:

United States and Mexico

Williams Sound Corp.

10321 W. 70th Street

Eden Prairie, MN 55344-3446

Ph: 800-328-6190 /952-943-2252 /FAX:952-943-2174Web: www.williamssound.com

Email: info@williamssound.com

Canada

Thorvin Electronics

2861 Sherwood Heights Dr. Units 36-37Oakville, ONL6J-7K1Canada

Ph: 800-323-6634 /905-829-3040 /FAX:905-829-4196Web: www.thorvinelectronics.com

South America

DPTech

SIA Trecho 3/4 Lote 335 2°. Andar 71200-030Brasília, DF

BRAZIL

Ph: (5561) 361-1384

Fax: (5561) 361-0948Web: www.dptech.com.br Email: ws@dptech.com.br

Europe and Asia

International Sales Department Williams Sound Corp.

10321 W. 70th Street

Eden Prairie, MN 55344 USA

Phone: +1 651 493 2578 or +1 952 943 2252 Fax: +1 952 943 2174

Email: doreeni@williamssound.com Web: www.williamssound.com

Williams Sound ®

©2005, Williams Sound Corp. CAT 102B

Helping People Hear

4