15
4. Microphone Operation
a. Turn on The Link 2 by sliding the
ON/STANDBY/OFF SWITCH (37)
to the STANDBY
position (transmitter on, audio muted) or the ON position (transmitter and audio both on).
The
LOW BATTERY INDICATOR LED (36)
will give a single quick flash, indicating
usable battery strength. In case of dead or low battery, the indicator will either not go on at all
or stay on continuously, indicating a battery voltage below 7V. If this occurs, replace with a
fresh 9V battery. Remember to turn the transmitter off when not in use.
b. The Link 2 is now ready to use. The
AF LEVEL LED DISPLAY (7)
on the 401X Quad
receiver should now be lit, indicating a received signal from the transmitter. When ready to
speak, slide the transmitter switch to the ON position and adjust the volume of the receiver as
per the
Audio Output Microphone Connection
section of the above 401X Quad receiver
instructions. The
AF LEVEL LED DISPLAY (7)
on the 401X Quad receiver will light up as
if the input signals are getting stronger. Occasional flickering on and off during use of the
LED indicator is normal. However, if the LED stays on continuously, it means the signal is
too loud and there is the possibility of overload distortion. Re-position the microphone farther
from the source or adjust the Link 2 transmitter gain with the
VOLUME LO/HI GAIN
SWITCH (35)
. Set for the maximum possible level without noticeable distortion on the high
level peaks. Set the
GAIN SWITCH
to LO to decrease the audio level, and set the
GAIN
SWITCH
to HI to increase the audio level. The red LED indicator should flicker only on the
loudest inputs.
[Note: Observe care in selecting P.A. 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 mics pick up sound equally from
all directions and are prone to feedback if not used carefully. Unidirectional mics are more
resistant to feedback, but pick up sound sources best that are directly in front of the mic.
Also, mics 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 mics such as handheld or
headworn mics 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 mic element at all
times to protect it.)
O P E R A T I O N
