10
English
5 Operation
1) Switch on the receiver with the POWER switch (5)
(keep the button pressed for approx . 1 s) .
The frequency indication (i) on the display
(2) shows the reception frequency currently ad-
justed . As long as the unit does not receive a
radio signal from the transmitter on the adjusted
frequency, it is muted [MUTE (h) is inserted] .
2) Switch on the transmitter (TXS-871HT or TXS-
871HSE) . If the transmitter and the receiver have
been adjusted to different frequencies, adjust
the receiver to the frequency of the transmitter
either manually or via the automatic frequency
scanning
☞
see chapter 5 .1 .
If the transmitter and the receiver have been
adjusted to the same frequency, the muting is
deactivated [MUTE (h) disappears] . One of the
indica tions
A
or
B
(g) lights up to indicate which
of the two separate receiver sections of the unit
receives the more powerful radio signal . The bar
graph RF (c) indicates the reception quality: the
more segments on the bar graph, the better
the reception .
If the reception is too poor, check if
a) the batteries of the transmitter are dis-
charged . The battery symbol (d) on the dis-
play indicates the current charging status of
the batteries of the transmitter:
full discharged
b) the distance between the transmitter and the
receiver is too long .
c) the reception is disturbed by objects in the
transmission path .
Transmitter and receiver should be placed
at a minimum distance of 50 cm from metal
objects and potential sources of interference,
such as e . g . motors or fluorescent tubes .
d) the reception can be improved by turning
the antennas (6) .
Note:
If the power of the radio signal falls below a de-
fined threshold value, the receiver will be muted . This
will prevent noise on the receiver in case of reception
interference or when switching off the transmitter .
The display will indicate MUTE (h) . The muting will be
deactivated as soon as the unit re ceives a radio signal
of sufficient power again .
3) Switch on the subsequent audio unit or advance
the corresponding fader on the mixer .
4) Speak / sing into the microphone . The volume
level of the audio signal received is shown via
the bar graph AF (b) and the indication PEAK
(e): The more segments on the bar graph AF, the
higher the volume level . The indication PEAK
should only light up shortly with signal peaks .
If it lights up permanently, the level is too high
and distortions will occur .
Adjust the optimum volume on the trans-
mitter by means of the indications AF and PEAK
☞
see op erating instructions of the transmitter .
5) Use the volume control (1) to adapt the output
level of the receiver to the input of the subse-
quent unit .
6) The receiver may be locked to prevent accidental
change of frequency or accidental switching off
☞
see chapter 5 .2 .
7) After operation, switch off the receiver with the
switch POWER (5) (keep the button pressed for
1 s as a minimum) . If the receiver is not used for
a longer period, disconnect the power supply
unit from the mains supply as it will have a low
current consumption even when the receiver is
switched off .
5.1 Adjusting the reception frequency
The reception frequency can either be adjusted
manually or via the automatic frequency scanning .
5.1.1 Mode “FREQ.”:
manual frequency adjustment
1) Keep the key SET (3) pressed for 2 s . The dis-
play shortly indicates
and then returns
to its previous indication . In the adjusting mode
“FREQ .”, FREQ . (f) keeps flashing .
Note:
To exit the mode “FREQ .” without adjusting the
frequency, press the key SET . Then the unit goes to
the mode “SCAN” . In the mode “SCAN”, press the
key SET once again . The display indicates
, then
the unit returns to normal operation .
2) Use the cursor keys (4) to adjust the frequency:
Each time the key is pressed, the frequency
is increased by 125 kHz, each time the key is
pressed, it is decreased by 125 kHz .
3) To save the frequency, press the key SET once
again . The display shortly indicates
and
the unit returns to normal operation .
