Nady Systems WA-120BT Owner's Manual - page 13
Transmitter Set-up and Operation
• Open the
battery compartment (1) and insert 2 fresh AA batteries,
observing the correct polarity. Close the compartment.
• The WLT-120 is provided with a
3.5 mm locking jack (2) for connecting
the microphone. Plug in either the
Lavalier/Lapel (7) or the Headworn
microphone (6) as supplied. To secure the connection, turn the metal
slip ring on the plug clockwise to thread it on to the jack. To unplug,
reverse the process. Slip the transmitter into a pocket or clip on to your
clothes. To use the lavalier mic, attach it at chest level. Do not place too
close to the mouth – a distance of about six inches usually works best.
To use the headworn mic, place it on the head and adjust the mic boom
so that the mic is about one inch to the side of the front of the mouth.
(Note: The lavalier or headworn mic wire is also the transmit antenna,
and rolling up or shortening the wire may reduce the effective operating
range. Extend the wire fully during use, and keep it as straight as
possible.)
• Turn on the WLT-120 by sliding the
OFF/STANDBY/ON SWITCH (3) to
the STANDBY position (transmitter on, audio muted) or the ON position
(transmitter and audio both on). The
battery indicator LED (4) will give
a single quick flash, indicating usable battery strength. In the case of
dead or low batteries, the LED either will not go on at all or will stay on
continuously, indicating that the batteries should be replaced with fresh
ones.
• The RF ON light on the WA-120BT should now be lit.
• Re-position the microphone farther from the source or adjust the
audio
input level control (5) if the monitored volume is to loud or distorted
after adjusting the receiver.
• Adjust the volume control of the WA-120BT to a comfortable listening
level as desired.
[Note: Observe care in selecting volume, transmitter location and speaker
placement so that acoustic feedback (howling and screeching) will be
avoided. Please also observe the pickup patterns of the microphone
selected: omnidirectional microphones pick up sound equally from all
directions and are prone to feedback if not used carefully. Unidirectional
microphones are more resistant to feedback, but pick up sound sources
best that are directly in front of them. Also, microphones that are farther
from the sound source, such as lavaliers, require more acoustic gain and
thus are also more prone to feedback than close-source microphones
such as handheld or headworn microphoness that are used close to the
mouth.]
(Note: Microphone elements can easily be destroyed by the buildup of
salts and minerals from perspiration and saliva. It is good practice to
put a windscreen on the microphone element at all times to protect it.)
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