IMG STAGELINE TXS-1800 Instruction Manual Download

Page: 12 / 42

6.2.3 Settings for the transmitter

These settings apply to the transmitter of the wire-
less system. During frequency synchronization
(

chapter 7, step 2), they will be transferred to

the transmitter. However, it is also possible to set
the transmission power and the gain on the trans-
mitter itself.

1) The transmission power is adjustable in three

levels. When the transmission power is reduced,
the power consumption will also be reduced.
Thus, the battery life will be longer, but the trans-
mission range will be shorter. Use the button
SET to select the function “setting of transmis-
sion power” (indication

starts flashing) and

the button

to set the level (3 levels dis-

played = highest transmission power).

2) The gain setting can be used to reduce the

microphone sensitivity (for wireless microphone
TXS-1800HT) or the sensitivity of the microphone
input (for pocket transmitter TXS-1800HSE) and
thus to readjust the volume level of the trans-
mitter. Use the button SET to select the function
“gain setting” (indication

starts flashing) and

the button

to set 0 dB, -3 dB or -6 dB.

6.3 Automatic channel scan

With the automatic channel scan, the unit will find a
free channel within the channel group adjusted
(

chapter 6.2.1). To operate multiple wireless

systems TXS-1800 at the same place at the same
time: Before performing a channel scan, switch on
the transmitters that have already been set to a
radio frequency so that the channels already being
used will be skipped during the channel scan.

Unlock the buttons (

chapter 6.1) and press

the button AUTO to start the scan. During the scan,
the display will indicate the radio frequencies of the
group consecutively, the indication

will keep

flashing and the numeric segments of the channel
indication will keep rotating. To stop the scan, press
the button AUTO once again. At the end of the
scan, the radio frequency found and the corre-
sponding channel number will be indicated on the
display.

6.4 Setting the output level

Unlock the buttons (

chapter 6.1) and use the

button

to set the output level of the receiver.

The value adjusted will briefly appear on the dis-
play (

…

) before the display indi-

cates the radio frequency again.

7 Establishing a Transmission Path

1) Set the radio frequency on the receiver (

chap-

ter 6.2.1, chapter 6.3). Do not switch on the cor-
responding transmitter yet. If the transmitter is
still switched off and the bargraph RF on the dis-
play (4) indicates a signal, interference or sig-
nals from another wireless system are received.
In this case, use a different radio frequency.

2) Switch on the transmitter and open its battery

compartment so that the IR sensor is not cov-
ered. Aim the IR sensor at the IR transmitting
diode (2) of the receiver. Make sure that there
are no obstacles between the IR sensor and the
IR transmitting diode (distance up to approx.
2 m).

For frequency synchronization, press the

button ADL (3): The transmitter will be matched
to the radio frequency of the receiver by IR sig-
nal. The transmission power and the gain set-
ting (

chapter 6.2.3) will also be transferred to

the transmitter. During IR transmission (dura-
tion: approx. 20 seconds), the wave symbol in
the indication

will pulsate and the display

backlight of the transmitter will light up. To stop
the IR transmission at any time, press the but-
ton ADL once again.

Note: The radio frequency, transmission power and
gain can also be set manually on the transmitter.

3) When the receiver and the transmitter have

been set to the same radio frequency, an
antenna symbol

will light up in one of the two

antenna indications A or B on the display of the
receiver (depending on which of the two sepa-
rate receiver sections of the unit receives the
radio signal of the highest quality at this
moment) and the bargraph RF will indicate that
a radio signal is being received.

In case of no reception or poor reception, please
check the following items:

a) Are the batteries of the transmitter dis-

charged? Both on the display of the receiver
and on the display of the transmitter, a bat-
tery symbol indicates the battery status.

b) Are there any metal objects or other high-fre-

quency sources interfering with reception?

c) Is it possible to improve the reception quality

by turning the receiving antennas?

d) Are the receiver and the transmitter too far

apart? The range depends on local condi-
tions (up to approx. 100 m in the open). The
transmission path should be free of any
obstacles.

e) Is the squelch too high and

or the

trans -