Williams Sound WIRTX900 - Manual
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Table of Contents:
- Page 2 – NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE!; Configuration; Input CH A; Audio Line; CH A; Made in USA; Power In; MOD 232 Infrared System Modulator; Williams Sound
- Page 3 – Feet
- Page 4 – SCREEN; Center Of E; Position the emitter to face in a
- Page 5 – Maximum Range When Using the RX22-4 Infrared Receiver; HORIZONTAL RADIATION POLAR PATTERNS; Fig. 7: Horizontal and Vertical Radiation Polar Plots
- Page 6 – Multiple Emitters Installed to Maximize Coverage
- Page 7 – Black; Receiver
- Page 8 – SOUND SYSTEM; Baseband Signal; Four-Channel System Diagram
- Page 9 – The modulator shall be the Williams Sound Corp. model MOD 232.
- Page 10 – United States
SoundPlus
®
Infrar
ed System •
Model WIR TX900
SoundPlus
®
Infrared System •
Model WIR TX900
D
D
NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE!
©2006, Williams Sound Corp. CAT 089F
1
Description:
The WIR TX900 is a high performance, cost-effective infrared system designed for simultaneous lan-
guage interpretation of up to four languages. Operating on 2.3-3.8 MHz, the WIR TX900 is less sus-
ceptible to traditional radio and lighting interference. When using the optional RX22-4 four-chan-
nel receiver, the WIR TX900 will operate up to 28,000 ft
2
in single channel mode, ideal for auditori-
ums, theaters or other large venues.
Applications:
• Simultaneous Interpretation • Audio Description • Conferences • Multi-Media Rooms • Boardrooms •
Courtrooms • Schools • Universities • Cinema • Churches
Size, Weight:
8.5" W x 8.2" D x 1.7" H (21.5 cm x 20.8 cm x 4.4 cm), 3.1 lbs (1.5 kg)
Color:
Black epoxy paint with white legends
Rack Mount:
1/2 rack space wide, 1 rack space high, one or two modulators may be mounted in a
single IEC rack space with RPK 005 (single) or RPK 006 (double) Rack Mount Kits
Power Supply:
Wall Transformer, 24 VAC, 50-60 Hz, 15 VA
North America:
TFP 016, UL/CSA
Europe:
TFP 027-01, 2-pin Schuko plug, CE
UK:
TFP 027-02, 3-pin UK plug, CE
Modulation:
FM Wideband, +50kHz deviation, 50uS pre-emphasis
Carrier Frequency:
Channel A: Selectable, 2.3/2.8/3.3/3.8 MHz,
Channel B: Selectable, 2.3/2.8/3.3/3.8 MHz
Signal-to-Noise Ratio:
More than 60 dB
Frequency Response:
30 to 16,000 Hz, +1 dB, -3 dB, electrical response
Total Harmonic Distortion:
Less than 2%, electrical response
Audio Processing:
Compression (slope) adjustable from 1:1 to 4:1
Switchable compression gain: Moderate: 16 dB. Max: 33 dB
Auto Carrier Shut-Off:
15 minute timer shuts off carrier when no audio is present (can be disabled)
Power Switch:
Two-position push button, ON/OFF
Power Indicator:
Green LED
Audio Level Controls:
CHA and CHB Input Level, rotary knobs
Audio Indicators:
CHA and CHB Audio Level, 10-segment LED’s
Carrier LEDs:
4 green LED carrier “on” indicators per channel (indicates frequency, malfunctions)
Compress Control:
1:1 to 4:1
Input Mix LED:
Indicates inputs A and B audio are mixed and transmitted by CHA, CHB off
Stereo LED:
Indicates stereo mode
Phones Switch:
Selects CH1 or CH2 for phones when not in stereo mode
MOD 232 Modulator
Two Channel Infrared System Modulator
Williams Sound
Power
Phones
+ 9
+ 6
+ 3
0
- 3
- 6
- 9
- 12
- 15
- 18
+ 9
+ 6
+ 3
0
- 3
- 6
- 9
- 12
- 15
- 18
3.8
3.3
2.8
2.3
Level
5
0
1
2
3
4
6
7
8
9
10
Level
5
0
1
2
3
4
6
7
8
9
10
Compress
3.8
3.3
2.8
2.3
Compress
Inputs Mixed
Stereo
IR
CH A
CH B
Frequency
(MHz)
Frequency
(MHz)
Channel A
Channel B
Microprocessor Controlled
Frequency Synthesized
Fig. 1: MOD 232 Front Panel
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Summary
SoundPlus ® Infrar ed System • Model WIR TX900 SoundPlus ® Infrared System • Model WIR TX900 D D Phones Output: 1/4" TRS headphone jack. Accepts stereo, mono, and any impedance phones. Infrared Test LED: IR LED for receiver testing, monitoring, and audio signal testing Power Input: 3-Pin Molex, ...
SoundPlus ® Infrar ed System • Model WIR TX900 SoundPlus ® Infrared System • Model WIR TX900 D D The coverage area for the TX9 will vary depending on the receiver being used. The diagram abovedemonstrates the receiver coverage when operating a single TX9 emitter in single channel mode.Patterns are d...
SoundPlus ® Infrar ed System • Model WIR TX900 SoundPlus ® Infrared System • Model WIR TX900 D D NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE! ©2006, Williams Sound Corp. CAT 089F 4 The TX9 floods the listening audience with a cone shape light pattern as shown here. The path of the cone sha...
