3 Applications
GB
Combined with a transmitter of the TXS-900 series
from "img Stage Line" (wireless microphone TXS-
900HT or pocket transmitter TXS-900HSE with a
microphone connected), the multi-frequency re -
ceiver TXS-900 provides a wireless audio trans-
mission system, e. g. for stage applications. The
receiver uses "True Diversity" technology and
op erates in the two UHF ranges 823 – 832 MHz and
863 – 865 MHz.
There are 3 operating modes to set the trans-
mission channel: manual setting, channel scan or
selection from one of 4 preset groups (8 channels
in each group). The receiver and the transmitter are
synchronized by radio transmission: When the syn-
chronization button is kept pressed on the trans-
mitter and the button SYNC is briefly pressed on
the receiver at the same time, the transmitter is set
to the transmission channel of the receiver.
3.1 Conformity and approval
Herewith, MONACOR INTERNATIONAL declare
that the receiver TXS-900 is in accordance with the
basic requirements and the other relevant regula-
tions of the directive 1999 / 5 / EC. The declaration of
conformity is available on request from MONACOR
INTERNATIONAL. The receiver is generally ap -
proved for operation in EU and EFTA countries; it is
licence-free and requires no registration.
4 Setting up
The receiver can be placed on a table or be
installed into a rack (482 mm/19"). For optimum
reception, make sure that there are no obstacles
between the transmitter and the receiver. Do not
position the units in the immediate vicinity of any
large metal surfaces or digital devices (e. g. CD
players, computers).
4.1 Installation into a rack
For installation of one receiver into a rack, use the
two long rack brackets provided. Use 3 screws
each to fasten the brackets to the left and right
sides of the receiver.
Two receivers can be installed into a rack side
by side as a receiver pair. For this purpose, each
receiver is supplied with a connecting piece and a
short rack bracket: Use one connecting piece to
link the receivers on their top sides and the other
connecting piece to link them on their bottom sides.
Use 4 screws for each connecting piece. Fasten
the two short rack brackets to the left and right
sides of the receiver pair, using 3 screws each.
10
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 posi-
tion.
When installing the receiver into a rack (
ter 4.1), the reception may be improved when the
receiving antennas are placed at the front of the
rack. For this purpose, each rack bracket is pro vided
with a hole for installing an antenna. Thus, both
antennas of the receiver or – for a receiver pair –
one antenna of each receiver can be installed at the
front of the rack.
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 connection
For connection to a microphone input or a line input
of the subsequent unit (e. g. mixer, amplifier), use
one of the two audio outputs (8):
– 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 connec-
tion 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 (9) to match the output 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 posi-
tion MIC.
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