Williams Sound WIR TX238 User Manual
SoundPlus
™
TV Infrared Listening System • Model WIR TX238
SoundPlus™TV Infrared Listening System • Model WIR TX238
©2007, Williams Sound Corp. MCAT
050B 1
NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE!
Description:
The WIR TX238 infrared transmitter is ideal for TV listening, meetings, or any small group listening
application. It is designed for use with infrared receiver models WIR RX237, WIR RX238, WIR RX239,
or compatible receivers operating on 2.3 and/or 2.8 MHz. The WIR TX238 transmitter will connect
directly to a TV, VCR, or DVD with standard audio output jacks. It has an operating range of 30 feet
(9m) line-of-sight of the receiver.
Applications:
• Television Listening • Stereo Listening • Small Group Listening • Language Interpretation • Offices
Size, Weight, Color: 6.25” L x 3.25” W x 1.25” H (15.9 cm x 8.3 cm x 3.2 cm), 5.1 oz (140 g), Gray
Power Input: 12 VDC (center is positive) on DC connector, 200 mA Class II wall transformer
TFP 024 Power Supply: North America: 120 VAC, 60 Hz, UL/CSA
TFP 032 Power Supply, 2 pin Euro mains plug, 230 VAC, 50-60 Hz, CE
TFP 033 Power Supply, 3 pin UK mains plug, 230 VAC, 50-60 Hz, CE
Subcarrier Frequency: 2.3 MHz, 2.8 MHz, or stereo
Range: 30ft (9m) line-of-site
Auto Power On/Off: Transmitter shuts off infrared after 5 minutes when audio signal is removed. Battery charging
functions remain on full time.
Microphone Input: 3.5 mm jack for MIC 084 Electret TV Microphone, 1.5 kΩ
Line Inputs: 2 RCA jacks for mono or stereo line-level sources. 200 mV min. to 10 V rms max. input level, 5.1 kΩ
Automatic Level Control: 35 dB compression range
Infrared LEDs, Pattern: 6 IR LEDs, 45 degree cone-shaped coverage pattern to 6 dB intensity, 30 ft (9 m) line of sight
Charging Ports: Charges one WIR RX238 Receiver plus two additional BAT AP97A NiMH battery packs**
Approvals: RoHS, WEEE
Warranty: 5 years, parts and labor*
WIR TX238 Transmitter:
TX238 Front
TX238 Rear
*90 days on accessories.
DC12V
-
+
R
L MIC
SoundPlus
™
TV Infrared Listening System • Model WIR TX238
SoundPlus™TV Infrared Listening System • Model WIR TX238
©2007, Williams Sound Corp. MCAT
050B 2
NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE!
TX238 Transmitter
The transmitter shall be encased in a grey, ABS plastic, compact in design for easy mounting on top of a
TV, VCR or audio equipment. The transmitter shall have 6 infrared LEDs that can transmit a signal up to
30 ft (line-of-sight) at 6 dB of intensity. There shall be a two position slide switch for selecting stereo or
mono (2.3/2.8 MHz) operation. Two RCA jacks shall be available for mono or stereo line-level input at
200 mV to 10 V. A 3.5 mm jack shall be available for microphone input at 1.5 k. A television microphone
shall be included to directly pick up the audio of the sound source where there are no available jacks.
The transmitter shall have a battery charger for the RX238’s BAT AP97A on each side of the transmitter.
The transmitter shall serve as a charger for a single RX238 receiver plus two additional BAT AP97A batteries.** The transmitter shall automatically turn off after 5 minutes of no audio. The transmitter shall
have RoHS and WEEE approval and be covered by a five-year parts and labor warranty.* The transmitter
shall be the Williams Sound Corp. model WIR TX238.
Bid Specs:
*90 days on accessories.
** Only one additional battery is supplied with the WIR 238 system.
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