User's Manual

Equipment Placement
If the BST-75 base station is to be rack mounted, a remote antenna must
be used. The base station should be mounted away from equipment
that uses large power transformers to reduce 60 Hz hum possibilities.
Special Note: When using the base station in close proximity to other
audio equipment, ensure that the audio equipment is not susceptible to
RF interference. This can be accomplished by temporarily installing
the base station as per above, and then while the base station is
operating, checking all audio outputs for uncharacteristic noise. If a
problem is found, move the base station or the remote antenna as far as
possible from the affected equipment. Should you continue to have
problems, contact COMTEK’s Technical Support Services for
assistance.
Power Requirements
The BST-75 base station is designed to be powered by 12 volts DC. The
standard barrel type power jack (5.5mm X 2.1mm) is nonpolar and will
accept either
plus or minus
12 volt DC on the center pin. The switching
power supply adaptor supplied is
a universal input type that will
accept 100-240 volt, 47-63 Hz
(AP-12V1B). The on/off switch
on the front panel of the base
station transmitter should be
turned to the “off” position
when the power plug is
initially plugged into the
transmitter.
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OPERATING INSTRUCTIONS