Tips For Achieving Optimum Performance - Shure LX Wireless System User Manual

ADJUSTING THE RECEIVER SQUELCH CONTROL
The receiver squelch control is factory preset at the 12 o'clock position for op-
timum performance. No further adjustment is normally required. However, it is
possible to adjust the squelch control to emphasize either signal quality or system
range.
• To raise the squelch threshold, rotate the control clockwise. This causes the re-
ceiver to demand a higher quality signal (less noise before muting), but it reduc-
es the operating range.
• To lower the squelch threshold, rotate the control counterclockwise. This allows
a lower quality signal through (more noise before muting), but it extends the op-
erating range.
DECREASE
SQUELCH
LX4

TIPS FOR ACHIEVING OPTIMUM PERFORMANCE

• Maintain a line-of-sight between the transmitter and receiver antennas, if possi-
ble. Avoid placing transmitter and receiver where metal or other dense materials
may be present.
• Avoid placing the receiver near computers or other RF generating equipment.
• Avoid placing the receiver in the bottom of an equipment rack unless the anten-
nas are remotely located.
• Use the proper receiver antenna(s). A 1/4-wave antenna can be used if it is
mounted directly on the receiver; use a 1/2-wave or other ground-plane-depen-
dent antenna if antennas are remotely located. Use the Shure WA503
Front-Mount Antenna Conversion Kit to mount antennas on the front of the re-
ceiver.
• Mount 1/4-wave antennas with the antenna tips pointed away from each other
at a 45° angle, and away from large metal objects.
• Use the proper antenna cable when remotely locating receiver antennas. For
best performance, use the Shure WA421 50 W RG-58 coaxial antenna cable,
and the minimum length necessary. For cable runs greater than 12.2 meters (40
feet), use RG-8 coaxial cable.
• Mount diversity antennas at least 1/4-wave apart [42 cm (17 inches) for VHF
systems, although a 1.5 m (60 inches) spacing is preferred]. For multiple system
installations, use the Shure WA405 Antenna/Power Distribution Kit or the
WA470 Passive Antenna Splitter to minimize the number of antennas and re-
duce interference.
• Use the Shure WA302 Instrument Cable when using the LX1 transmitter with a
musical instrument.
• If using multiple wireless systems, maintain a distance of at least 3 meters
(10ft.) between the transmitter and the closest receiving antenna.
RECEIVER SQUELCH CONTROL ADJUSTMENT
INCREASE
SQUELCH
LX3
RF
FIGURE 17
LX Wireless System
DECREASE
SQUELCH
SQUELCH
AUDIO
INCREASE
SQUELCH
WIRELESS
RECEIVER
LEVEL POWER
17