Step 3: 95 kHz Carrier
Cable Installation
Step 1:
Determine the length of RG59 coaxial
cable needed to reach from the transmitter
to the modulator unit. The modulator is
usually located near the other sound
equipment to simplify audio connections.
100 feet of coaxial cable is included with
each transmitter. You will need to cut it to
length and install F-connectors on both
ends. Additional RG59 coax can be added,
up to 1000 feet maximum. Make sure you
leave some slack at each end.
Step 2:
Install the F-connectors on each end of the
cable. You will need a CATV-type coax
stripper and crimper.
Step 3:
Connect the 95 kHz carrier cable to either
Modulator Out jack on the MOD 1
modulator and to the Modulator In jack on
the TX3 transmitter.
If you are using more than one transmitter:
Step 1:
Determine the length of coaxial cable
needed to reach between the transmitters.
100 feet of coaxial cable is included with
each transmitter. You will need to cut it to
length and install F-connectors on both
ends. Additional RG59 coax can be added,
up to 1000 feet maximum. Make sure you
leave some slack at each end.
Step 2:
Install the F-connectors on each end of the
cable. You will need a CATV-type coax
stripper and crimper.
Step 3:
Connect the modulation cable from the
Modulation Out Jack on the first
transmitter in the chain (the one connected
to the MOD 1 Modulator) to the
Modulation In jack on the next TX3
transmitter in the chain. Use the cable
clamps and screws provided to secure the
cable. The coax can also be routed through
conduit. You can chain as many
transmitters together as you need.
Remember that each transmitter needs its
own power supply.
Audio Input
Balanced
Line
Mic
70V
Model WIR MOD1 Infrared System Modulator
Input Level
Audio Inputs
Unbalanced
Left
Right
Hi-Pass Filter
20 Hz
175 Hz
725 Hz
6dB/octave
Modulator
Out
Modulator
Out
Power: 24 VAC, 60 Hz, 50VA
75 Ohm
75 Ohm
Made in USA
Williams Sound Corp.
Power: 24 VAC,
50-60 Hz, 10VA
Plug
Baseband Output Connection
Connect to TX3 here using RG-59 cable.
Power Connection
Plug in Power Supply
Fig. 11: Modulator Wiring Detail
Williams Sound
®
Helping People Hear
10
