Two Channel

Two Channel Infrared Modulator • Model MOD 232

D

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

Infrared Modulator Model MOD 232

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:

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

 

 

 

 

 

 

 

Williams Sound

Microprocessor Controlled

 

 

+9

3.8

 

 

 

 

 

+9

3.8

 

Inputs Mixed

Frequency Synthesized

 

 

 

 

 

 

 

 

 

 

5 6

 

+6

 

 

 

5

 

 

+6

 

 

Phones

 

4

 

+3

3.3

Compress

4

6

 

+3

3.3

Compress

 

3

 

7

0

 

 

3

 

 

7

0

 

 

Stereo

 

 

- 3

2.8

 

 

 

- 3

2.8

 

Power

2

 

8

-6

 

 

2

 

 

8

-6

 

 

 

 

-9

2.3

 

 

 

-9

2.3

 

CH A

 

1

 

9

 

1

 

 

9

 

 

10

-12

Frequency

 

 

10

-12

Frequency

 

IR

 

0

 

-15

 

0

 

 

-15

 

 

 

Level

 

-18

(MHz)

 

Level

 

-18

(MHz)

 

 

 

 

 

 

 

 

 

 

 

CH B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Channel A

 

 

 

 

 

 

Channel B

 

 

 

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 and CHB off

Stereo LED:

Indicates stereo mode

Phones Switch:

Selects CH1 or CH2 for phones when not in stereo mode

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.

NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE!

 

©2007, Williams Sound Corp. MCAT 002B

1

 

 

 

Page 1
Image 1
Williams Sound specifications Two Channel, Infrared Modulator Model MOD, Description, MOD 232 Modulator