12 13
Operating the UHT-100 Handheld Transmitter
The OFF/STBy/On pOWer SWITCH (18) 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 powered on standby, slide
the OFF/STBY/ON power switch to the ON
position. You will feel a slight click indicating
the ON position is selected. 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 microphone is now ready to use.
The receiver’s diversity RF A or 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.
UBT-100 Bodypack Transmitter (lT, HM or gT)Setting up the Transmitter
The UBT-100 bodypack requires two
alkaline or NiMH AA batteries to operate
(do not mix types). To install the batteries
into the battery compartment, press at
the arrow end and slide down and remove
the laTCHIng BaTTery COMparTMenT
DOOr (30), exposing the BaTTery
COMparTMenT (31). Insert two fresh AA
batteries according to the correct polarity as
indicated on the transmitter body. Slide the
battery compartment door back onto the
transmitter, making sure it is secure. Fresh
alkaline batteries can provide up to 8-10
hours of operation, but in order to ensure
optimal performance it is recommended
that the batteries be replaced after
6-8 hours of use or as indicated to be
necessary by the flashing “BATT” icon.
The transmitter has a removable anTenna
(24) but it should be attached (screwed
on tightly counterclockwise). For best
transmitting power during use, make
sure it is not blocked. A walk test before
use will determine the operating range in
your application.
powering the Transmitter On/Off
To turn on the transmitter, slide the OFF/
STBy/On pOWer SWITCH (32) to the standby
position. The LCD backlight will light up,
indicating the unit is now on. After five
seconds the backlight will automatically
turn off to conserve battery life. The
lCD DISplay (27) indicator icons stay on
for normal operation.
As many of the five LCD display BaTTery
leVel BarS (27B) should stay lit as possible,
indicating usable battery strength. As the
batteries weaken, fewer of the level
indicators will stay lit until only one bar
shows, which will then flash “BATT” to
warn that the batteries are now too low
and should be replaced as soon as possible
with fresh ones.
To preserve battery life, turn the transmitter
off when not in use. To turn the transmitter
off, slide the power On/Off switch to the off
position. No LCD or backlight is lit up and
the unit will be off.
At power off the transmitter will store the
last settings entered and re-display them
at the next power on. The default factory
setting is Channel 14.
programming the UBT-100 to the Selected Channel
The transmitter must be programmed to the
same frequency as selected for the receiver
via automatic synchronization using the IR
Sync function. It cannot be programmed on
the transmitter itself.
IR Sync Programming:
Use the wireless Ir reCepTOr SenSOr
WInDOW (29) infrared LED to download
pre-programmed channels from the receiver.
Start programming by holding the IR receptor
sensor/window about 6-12” in front of the
receiver, then press the aSC SynC BUTTOn
(7) briefly on the receiver. The red LED
inside the receiver Ir WInDOW (6) will flash
twice quickly within two seconds. This LED
indicates IR transmission is in progress. If
necessary, the ASC transfer can be repeated
by pressing the ASC Sync button again.
When the synchronization is completed
successfully, either the rF a or B leD (5) on
the receiver will light up. Upon successful
data transfer (usually in less than two
seconds) the transmitter’s backlight will light
up and the transmitter will transmit a radio
signal on the same channel as the receiver.
The diversity RF A or B LED indicator on the
receiver will then light up, indicating that the
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.