IMG STAGELINE TXS-1800 Instruction Manual Download

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2 Safety Notes

The units (receiver and power supply unit) corre-
spond to all relevant directives of the EU and are
therefore marked with

Please observe the following items in any case:

The units are suitable for indoor use only. Protect
them against dripping water and splash water,
high air humidity and heat (admissible ambient
temperature range: 0 – 40 °C).

Do not operate the receiver and immediately dis-
connect the power supply unit from the mains
socket
1. if the receiver or the power supply unit is visi-

bly damaged,

2. if a defect might have occurred after a unit was

dropped or suffered a similar accident,

3. if malfunctions occur.
In any case the units must be repaired by skilled
personnel.

For cleaning only use a dry, soft cloth; never use
water or chemicals.

No guarantee claims for the units and no liability
for any resulting personal damage or material
damage will be accepted if the units are used for
other purposes than originally intended, if they
are not correctly connected or operated, or if
they are not repaired in an expert way.

3 Applications

Combined with a transmitter of the TXS-1800
series from “img Stage Line” (wireless microphone
TXS-1800HT or pocket transmitter TXS-1800HSE
with a microphone connected), the multi-frequency
receiver TXS-1800 provides a wireless audio trans-
mission system, e. g. for stage applications. The
receiver uses “True Diversity” technology: The sig-
nal sent is received by two antennas and amplified
in two separate receiver sections. The signal of the
highest reception quality is then processed.

The TXS-1800 system operates in the UHF

range 1785 – 1800 MHz (16 channel groups of 12

channels each). A most convenient feature is the
frequency synchronization: At the press of a button
the transmitter will be matched to the radio fre-
quency of the receiver by IR signal. Transmission
power and gain of the transmitter can be set on the
receiver; these data will also be transferred to the
transmitter during IR transmission.

4 Setting up and Connection

For optimum reception, place the receiver at least
1 m above the ground, not too close to adjacent
walls. The position is ideal when the receiving
antennas and the transmitter are at the same level.
Make sure that there are no obstacles between the
transmitter and the receiver. Do not position the
units in the immediate vicinity of metal surfaces or
digital devices (e. g. CD player, computer).

1) Connect the receiving antennas provided (1) to

the antenna jacks (9) and put them upright in a
V-shaped position.

2) For connection to a microphone input or to a

highly sensitive line input of the subsequent unit
(e. g. mixer, amplifier), use one of the two audio
outputs (8):

– balanced XLR output

(phantom power resistant)

– unbalanced 6.3 mm output jack;

matching connection cable is supplied

When the units are placed far apart, the XLR
output should be preferred. The balanced signal
transmission offers higher protection against
interference which may occur especially with
long cables.

3) For power supply, connect the power supply unit

provided to the power supply jack (7) and to a
mains socket (230 V~ / 50 Hz).

4.1 Installation into a rack

For installation into a rack (482 mm / 19″), two rack
brackets are supplied. First remove the front screw
on each side of the receiver. Now there are three
holes on each side for attaching the rack bracket.
Then use the screws supplied to fasten the rack
brackets to the sides of the receiver (

fig. 4).

To improve the reception it may be better to place
the receiving antennas at the front of the rack. For
this purpose, use BNC adapters (2 × BNC jack,
50 Ω) to attach each antenna to a bracket:

1) Insert the BNC adapter into the hole provided on

the bracket and fasten it.

If the units are to be put out of operation
definitively, take them to a local recycling
plant for a disposal which is not harmful to
the environment.

WARNING

The power supply unit uses danger-
ous mains voltage. Leave servicing
to skilled personnel only. Inexpert
handling may result in electric shock.