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W10BT TRANSMITTER
ANTENNA: This is a flexible, 1/4-wave vertically
polarized antenna approximately 30 cm (12 in.) in length
and permanently attached to the bottom surface of the
transmitter. For proper operation, the antenna must be
in the vertical position; it cannot be coiled or bundled.
BATTERY (not supplied): Only alkaline (Duracell
MN1604 or equivalent) or heavy-duty nickel-cadmium
(8.4-volt) transistor-radio-type batteries should be used.
A fresh alkaline battery should provide approximately 8
hours of operation, and a recharged nicad should pro-
vide 1-1/2 to 2 hours.
BATTERY COMPARTMENT: Slide the cover down to
expose the battery compartment. Make certain the bat-
tery is installed using the proper positive (+) and
negative (-) polarity.
BATTERY TEST Push-Button Switch:
Permits checking
the condition of the installed battery when the power
switch is on. The BATTERY TEST LED Indicator will fail
to light if the battery is weak or dead (or if the POWER
switch is off). Note that if the battery is tested periodical-
ly during use, an impending battery failure can be
detected: the LED will fail to light at 7.25 volts. At that
time, approximately 1 hour of alkaline battery life is left.
BELT CLIP: Permits convenient attachment to the
user’s belt, waistband or other clothing.
GAIN HI/LO Slide Switch: Selects the High Gain posi-
tion to boost the signal of low-output microphones, or
the Low Gain position for high-output microphones or
musical instruments. Allows maximum modulation
without clipping.
MICROPHONE JACK: This is a 4-pin, miniature, male
Tini Q-G connector designed to mate with Switchcraft
TA4F or equivalent connectors. A built-in 20-kilohm load
resistor provides proper matching for dynamic, ribbon or
condenser microphones. Connector pin 2 supplies
+5-volt bias voltage for condenser microphone phan-
tom powering. In addition to microphones with TA4F
connectors, Shure has available an adapter cable with a
standard XLR female connector for use with conven-
tional microphones (WA310), and a musical instrument
adapter cable with a 1/4-inch phone plug on the equip-
ment end (WA300).
MICROPHONE LEVEL Rotary Control: In conjunction
with the GAIN HI/LO switch, this control provides addi-
tional audio level adjustment. A small screwdriver is
supplied to make adjustments.
MICROPHONE ON/OFF Toggle Switch: Permits the
user to “mute” the microphone without turning the
transmitter off. This avoids the “pop” that may accom-
pany power turn-on and turn-off, and generally prevents
pickup of unwanted signals by the receiver.
POWER ON/OFF Slide Switch: Applies power to the
transmitter circuitry. The switch is a low-profile type to
minimize accidental turn-off.
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