Williams Sound MOD 232 Specifications

Two Channel Infrared Modulator •

Description:

The MOD 232 Modulator is designed to operate with a TX9 emitter operating on 2.3/2.8/3.3/3.8 MHz
frequency. Each microprocessor controlled MOD 232 modulator can handle up to two audio channels.
Baseband outputs can daisy-chain two MOD 232 together for four-channel operation. Flexible combi-
nation jacks permit balanced/unbalanced line-level inputs. Carrier frequencies are controlled by the
microprocessor and a frequency synthesizer for rock-solid frequency control.

Applications:

• Churches • Schools • Auditoriums • Conference Rooms • Theaters
MOD 232 Modulator:
Size, Weight:
Color:
Rack Mount:
Power Supply:
Modulation:
Carrier Frequency:
Signal-to-Noise Ratio:
Frequency Response:
Total Harmonic Distortion:
Audio Processing:
Auto Carrier Shut-Off:
MOD 232 Front Panel:
Power Switch:
Power Indicator:
Audio Level Controls:
Audio Indicators:
Carrier LEDs:
Compress Control:
Input Mix LED:
Stereo LED:
Phones Switch:
Phones Output:
Infrared Test LED:
NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE!
©2007, Williams Sound Corp. MCAT 002B
D
D
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)
Black epoxy paint with white legends
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
Wall Transformer, 24 VAC, 50-60 Hz, 15VA
North America: TFP 016, UL/CSA
Europe: TFP 027-01, 2-pin Schuko plug, CE
UK: TFP 027-02, 3-pin UK plug, CE
FM Wideband, +50 kHz deviation, 50 uS pre-emphasis
Channel A: Selectable, 2.3/2.8/3.3/3.8 MHz,
Channel B: Selectable, 2.3/2.8/3.3/3.8 MHz
More than 60dB
30 to 16,000 Hz, +1 dB, -3 dB, electrical response
Less than 2%, electrical response
Compression (slope) adjustable from 1:1 to 4:1
Switchable compression gain: Moderate: 16dB. Max: 33dB
15-minute timer shuts off carrier when no audio is present (can be disabled)
Two Channel Infrared System Modulator
Microprocessor Controlled
+9
Frequency Synthesized
+6
5
+3
4 6
7
3
- 3
8 -6
2
Power
-9
9
1
-12
0 10 -15
-18
Level
Channel A
Two-position push button, ON/OFF
Green LED
CHA and CHB Input Level, rotary knobs
CHA and CHB Audio Level, 10-segment LED's
4 green LED carrier "on" indicators per channel (indicates frequency, malfunctions)
1:1 to 4:1
Indicates inputs A and B audio are mixed and transmitted by CHA and CHB off
Indicates stereo mode
Selects CH1 or CH2 for phones when not in stereo mode
1/4" TRS headphone jack. Accepts stereo, mono and any impedance phones.
IR LED for receiver testing, monitoring and audio signal testing.
1
Model MOD 232
3.8 +9
+6
5
+3
3.3
4 6
Compress
0
7
3
- 3
2.8
8 -6
2
-9
2.3
9
1
-12
Frequency
0 10 -15
(MHz)
-18
Level
Channel B
Williams Sound
3.8 Inputs Mixed
Phones
3.3
Compress
0
Stereo
2.8
2.3 CH A
IR
Frequency
(MHz)
CH B