Selecting the U-1100/2100 Receiver Channel. With the associated transmitter off, scroll through
the channels to find one that shows no received signal on the receiver’s
RF LCD INDICATOR
(6)
. Also, neither of these LCD/LEDs should be lit on each of the three immediately adjacent
channels both above and below the selected channel for optimal interference-free operation
(i.e. in a field of seven total adjacent channels—with the channel used in the middle).
If operating multiple U-1100/2100 Series systems simultaneously, repeat this procedure with
every new channel being selected, with previously tuned systems all on, both transmitters and
receivers. See “Instructions for Setup of Simultaneous Multichannel Operation “
Also see
Selecting the U-1100/2100 Receiver Channel
Programming the U-1100HT to the Selected Channel
Programming the U-1100LT/HM or GT to the Selected Channel
Please note that wireless frequencies are shared with other radio services. According to FCC
regulations, wireless microphone operations are unprotected from interference from other
licensed operations in the band. If any interference is received by any Government or non-
government operation, the wireless microphone must cease operation or change frequencies.
The above statement is valid only for use in the U.S.A.
MISCELLANEOUS TIPS
• The receiver antennas should be kept away from any metal surfaces whenever possible as they
can reflect away or shield the incoming RF signal.
• If the receiver’s volume control is set too high, it may overdrive the input of the attached audio
mixer, causing distortion. Conversely, if the output is set too low, the overall signal-to-noise
ratio of the system may be reduced, causing noticeable hiss. If such noise occurs, adjust the
output level of the receiver so that highest sound pressure level going into the microphone
transmitter causes.
• no input overload in the mixer, but permits the mixer level control to operate in the normal
range (not too high and not too low). This provides the optimal signal-to- noise for the entire
system.
• Before inserting the batteries, ensure that they are inserted with the correct polarity.
• Before operation, confirm that the receiver and associated transmitter are tuned to the same
frequency group and channel number.
• After making a receiver channel change, ensure that the corresponding change is also made
on the matching transmitter.
• Use only new alkaline or fully recharged NiMH batteries. Do not use “general purpose” carbon
batteries. When batteries are weak, replace all the batteries at the same time. Do not mix new
and old batteries.
• Position the receiver so that it has the least possible obstructions between it and the
transmitter. Line-of-sight is best!
• During operation, the transmitter and the receiver should be as close as possible for optimum
results but never closer than 3 ft. (1 m) as that may overload the receiver’s input circuitry and
cause noises.
• If rackmounting the receiver, keep away from heat sources such as amps by allowing enough
space between them for adequate ventilation.
• For the best operation, the receiver should be placed at least 3 ft. (1 m) above the ground and
3 ft. (1 m) away from a wall or metal surface. The transmitter should also be at least 3 ft. (1 m)
from the receiver. Keep antennas away from noise sources such as motors, automobiles, neon
lights, signal processors, computers, as well as large metal objects.
• A receiver cannot receive signals from two or more transmitters simultaneously.
• Turn the transmitter off when it is not in use. For longest life, remove the batteries if the unit is
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