Operation; Setting The Transmission Channel - IMG STAGELINE TXS-920 Bedienungsanleitung

5 Connecting Antennas
and an Audio Unit
5.1 Antennas
Connect the receiving antennas provided (1)
to the antenna jacks (7) and put them in a
vertical position .
When installing the receiver into a rack,
the reception may be improved when the re­
ceiving antennas are placed at the front of
the rack . For this purpose, each rack bracket
supplied is provided with a hole for installing
an antenna . To install an antenna at a rack
bracket:
1) Insert a BNC adapter (2 × BNC jack, 50 Ω)
into the hole provided on the bracket and
fasten it .
2) Connect the antenna to the front jack of
the adapter .
3) Use a 50 Ω BNC cable to connect the rear
jack of the adapter to one of the antenna
jacks on the rear of the unit .
5.2 Audio connections
To send the signals of the two receiver
sections separately to the subsequent audio
unit (e . g . mixer, amplifier), each receiver sec­
tion is provided with two outputs (10) . Use
one of these two outputs of each receiver
section to connect it to a microphone input
or to a line input of the subsequent unit:
– balanced XLR output
This output should be preferred when the
units are far apart . The balanced signal
transmission offers a higher protection
against interference which may occur
especially with long cables .
– unbalanced 6 .3 mm output (a matching
connection cable is provided)
Note: Never use the balanced output and the
unbalanced output at the same time; the signal
quality may be affected .
Use the sliding switch (11) to match the out­
put level to the input: For connection to a line
input, set the switch to the left position LINE;
for connection to a microphone input, set the
switch to the right position MIC .
To send the mixed signal of the two re-
ceiver sections to the subsequent audio unit,
connect the unbalanced 6 .3 mm output jack
MIX OUT (8) to a line input of the audio unit .

6 Operation

Connect the power supply unit provided to
the power supply jack (9) and to a mains
socket (230 V/ 50 Hz) . After connection to
the power supply, the receiver is switched on .
To switch the receiver on or off, use the
button POWER (2): Keep the button pressed
for approx . 1 second .
If the receiver is not in use for a longer
period of time, disconnect the power supply
unit from the mains socket . Even when the
receiver is switched off, the power supply unit
has a low power consumption .
8
7 Setting the
Transmission Channel
For the two wireless transmission systems
which can be set up with this 2­channel re­
ceiver, set the transmission channels sepa­
rately on each receiver section . Use the but­
tons SET, and (5) on the receiver section
 
to make the settings . Three operating modes
are available .
When setting the channel on a receiver sec­
tion, make sure that any switched­on trans­
mitters of wireless systems operated at the
same time are not too close to the receiver
(minimum distance: 1 m) .
7.1 Selecting the operating mode
The display indicates the current operating
mode: "MANUAL", "SCAN" or "PRESET" (A) .
To select the desired mode, use the button
or : Keep the button pressed for approx .
 
1 second to go to the next mode (or keep the
button pressed until the mode is indicated,
then release it) .
7.2 Mode MANUAL
In the mode MANUAL, the desired radio fre­
quency can be selected manually from the
442 radio frequencies available (
page 9) .
1) Use the button or to select the mode
 
MANUAL ( ☞ chapter 7 .1) . The display will
indicate the most recent radio frequency
(G) and corresponding channel number (E)
adjusted in the mode MANUAL or SCAN .
2) To activate the setting mode, keep the
button SET pressed for approx . 1 second
until the channel indication (E) and the
frequency indication (G) start flashing .
Note: When no button is pressed, the setting
mode will be exited after a few seconds .
3) Use the button or
 
quency (in steps of 25 kHz) . To run through
the frequencies, keep the corresponding
button pressed .
4) The setting mode will be exited automat­
ically after a few seconds or when the
button SET is pressed .
7.3 Mode SCAN
In the mode SCAN, the receiver section will
automatically find the next free channel .
When multiple systems are operated at the
same time: Before performing the channel
scan, switch on the transmitters that have
already been set to a transmission channel .
Thus, all channels already being used or in­
compatible with the channels already set will
be skipped during the channel scan . In this
mode, depending on local conditions, up to
12 channels can be operated at the same time
without mutual interference .
1) Use the button or to select the mode
 
SCAN ( chapter 7 .1) . The display will
☞
indicate the most recent radio frequency
(G) and corresponding channel number (E)
adjusted in the mode MANUAL or SCAN .
2) To activate the setting mode, keep the
button SET pressed for approx . 1 second
until the channel indication (E) and the
frequency indication (G) start flashing .
Note: When no button is pressed, the setting
mode will be exited after a few seconds .
3) To start the channel scan, press the button
(scan in ascending order) or

in descending order) . The scan will stop
when the next interference­free channel
is reached . As long as the setting mode is
still activated, the scan will always restart
when the button is pressed again .
4) The setting mode will be exited automat­
ically after a few seconds or when the
button SET is pressed .
7.4 Mode PRESET
In the mode PRESET, a channel can be selected
from one of 4 preset groups ("P1" . . . "P4")
( ☞ table ➋, page 9) . Each group includes 8
intermodulation­free channels, i . e . channels
which may be used at the same time without
mutual interference . Thus, this mode is suita­
ble for operating multiple systems at the same
time . In case of interference occurring at the
place of operation, select a different group
or use the mode SCAN to set the channels
table ➊,
☞
for the systems .
1) Use the button
PRESET (
indicate the most recent radio frequency
(G) and corresponding channel number (E)
ad justed in this mode . The indication GP
(B) will display the group to which the fre­
quency has been assigned ("P1" ... "P4");
the indication CH (C) will display the chan­
nel number of the frequency within this
group ("1" ... "8") .
2) Keep the button SET pressed for approx .
1 second until the channel indication (E)
to set the fre­
and the frequency indication (G) start
flashing . The group setting mode has been
activated: The corresponding indication
"P1" ... "P4" (B) starts flashing . Use the
button
Then press the button SET to go to
the channel setting mode . In the channel
setting mode, the corresponding channel
number "1" ... "8" (C) starts flashing . Use
the button
within the group selected .
Note: When no button is pressed in the group
setting mode, the receiver section will go to the
channel setting mode after a few seconds . When
no button is pressed in the channel setting mode,
the mode will be exited after a few seconds .
3) The channel setting mode will be exited
automatically after a few seconds or when
the button SET is pressed .

or to select the mode
 
☞ chapter 7 .1) . The display will
or to select the group .
 
or to select the channel
 
(scan