User's Manual

8
UWS-100 Receiver
Powering the Receiver
To power the receiver, plug the provided
DC POWER SUPPLY UNIT (14) adapter into the
DC INPUT JACK (8) on the back of the receiver,
then plug the adapter into a 120VAC outlet.
Note: Any 15-18VDC source with minimum
400mA capacity can also be used.
The POWER ROCKER SWITCH (9) is used
to turn the receiver on or off. To turn on,
press down the right side of the switch
(“I”). The LED DISPLAY (3) will light, showing
Channel 00-99. The AF LED (4) and RF A/B
LEDs (5) remain dark. They will display the
received RF A/B and audio level when
the transmitter is activated and audio
transmitted. To turn off, press down the
left side of the switch (“O”). The receiver
will turn off. All the LEDs will be turned off,
indicating the receiver is off. At power off
the UWS-100 receiver will store the last
selected channel and re-display them at
power on. It can be reprogrammed to any
new channel. The default factory setting is
Channel 14.
Adjusting Antennas
The UWS-100 has two permanently
attached, flexible elbow ANTENNAS (1)
for diversity reception. Unfold and rotate
these antennas to operate the receiver.
The optimal positions of the antennas are
flared 45° out from the receiver sides and
90° from each other. For maximum range,
it is always best to maintain a line-of-sight
(no obstructions) between the receiver
antennas and the transmitter at all times
whenever possible.
Adjusting the Squelch
The MUTE LEVEL/RF SQUELCH (13) controls
the mute circuits in the receiver. The
control should be adjusted clockwise to
the minimum RF squelch setting at which
the RF A/B LED (5) will remain on while your
transmitter is in normal use, up to the
maximum operating range anticipated in
use for your application. However, in areas
of high RF activity, the squelch control may
need to be adjusted counterclockwise. If
the transmitter is off and the receiver signal
diversity A or B LED indicator flickers or
stays on continuously, the squelch should
be adjusted counterclockwise to a higher
level to stop the flickering. Be careful
not to select too high a counterclockwise
setting as this may reduce the operating
range to below what is needed. A range
walk test will help in selecting the proper
level. If the range is not critical, note that
a counterclockwise (maximum squelch)
setting will also yield a quieter mute
function, which might be desired in certain
applications. The squelch level is factory
preset at maximum sensitivity and operating
range (i.e. clockwise for minimum squelch
level—maximum usable range).
Note: For easier intuitive operation, the MIN
and MAX indications for this control refer to the
minimum and maximum operating range settings,
not to the actual mute levels selected, which are
the opposite as per above.
Selecting the UWS-100
Receiver Channel
See RF Interference and Finding Open
Channels in the Cautions and Troubleshooting
section. This section will also aid in finding
desired channel(s) of operation when setting
up your system(s).
The SELECT BUTTON (2) has two functions.
A short press (~1 second) scans for a clear
channel and a long press (> 2 seconds)
manually programs a desired channel.
System Operation
13
IR link is completed. The LCD DISPLAY (27)
will show the matching channel as receiver.
If no action is taken during the two seconds
of active IR data transfer, the receiver and
the transmitter units do not link and the
transmitter’s previous program channel
remains unchanged.
For normal operation, the transmitter should
have the same channel as displayed on the
receiver. The transmitter is now ready for use.
Note: The IR link is infrared light and thus works
best when this data transfer is accomplished in a
light-shielded or darker environment. It may not
be successful in a brightly lit area. If the transfer
fails, repeat the procedure in a darker location
or somehow shield the link from outside light to
successfully program the transmitter with the
pre-programmed group and channel info from
the receiver.
Connecting Input Audio Source
Lapel/Head Mic Uses (UBT-100 LT/HM)
The mini 3.5mm locking INPUT JACK (26)
is for connecting the audio input from a
lavalier/lapel mic (LT), a Headmic
™
(HM),
or an instrument (GT) cable, depending on
which transmitter version is being used.
Secure the connection to the cable by
tightening the cable mini plug’s outer ring
counterclockwise.
Instrument Use (UBT-100 GT)
Secure the connection of the GT
(instrument) cable by tightening the
mini-plug outer ring counterclockwise
onto the 3.5mm locking INPUT JACK (26).
When ready to play, slide the OFF/STBY/
ON POWER SWITCH (25) to the ON position
to un-mute the audio. Adjust the volume
on the receiver for one-to-one unity gain
with a hardwired cord or select up to an
added 4-5dB boost by adjusting the receiver
volume to maximum for normal use with
guitars and bass guitars.
Note: The audio level should be adjusted on the
instrument as when using a hard-wired cord.
Operating the UBT-100
Bodypack Transmitter
The OFF/STBY/ON POWER SWITCH (25) has
three positions and functions both as a
power On/Off and as an audio mute On/
Standby switch. During normal operation
with the unit set to Standby, slide the switch
to the ON position. The receiver’s RF A/B
LED (5) diversity indicators should now be
on, indicating a received signal from the
transmitter.
After the unit is powered on, slide the
power switch to the ON position to un-mute
the audio or to STBY to mute the audio.
Set the power switch accordingly and
the transmitter is now ready to use. The
receiver’s RF A/B LED indicator should now
be on, indicating a received signal from the
transmitter.
When ready to transmit audio, slide the
power switch to ON to un-mute. To mute,
slide the power switch to STBY again.
Adjust the volume of the receiver per
the previous section, Connecting the Audio
Output.
Note: Avoid acoustic feedback (howling or
screeching) by taking care in selecting PA volume,
transmitter location and speaker placement.