Williams Sound MOD 232 Benutzerhandbuch
Two Channel Infrar
ed Modulator
•
Model MOD 232
Two Channel Infrared Modulator •
Model MOD 232
©2007, Williams Sound Corp. MCAT 002B
1
NOTE: SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE!
D
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.
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
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
single IEC rack space with RPK 005 (single) or RPK 006 (double) Rack Mount Kits
Power Supply:
Wall Transformer, 24 VAC, 50-60 Hz, 15VA
North America:
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, +50 kHz deviation, 50 uS 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
Channel B: Selectable, 2.3/2.8/3.3/3.8 MHz
Signal-to-Noise Ratio:
More than 60dB
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: 16dB. Max: 33dB
Switchable compression gain: Moderate: 16dB. Max: 33dB
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 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.
MOD 232 Modulator:
MOD 232 Front Panel:
Two Channel Infrared System Modulator
Williams Sound
Power
Phones
+9
+6
+3
0
- 3
-6
-9
-12
-15
-18
+6
+3
0
- 3
-6
-9
-12
-15
-18
+9
+6
+3
0
- 3
-6
-9
-12
-15
-18
+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