5.2.1 Inserting the batteries into the hand-
held microphone
1
1) Unscrew the screw cover (14) .
2) Insert two (rechargeable) batteries of type AA
into the battery compartment (13) .
3) If the channel adjustment (
has been made, screw on the cover again .
5.2.2 Inserting the batteries into the pocket
transmitter
2
1) Press down the battery compartment cover
(21) at the marking in a powerful way and
pull it downwards at the same time .
2) Insert two (rechargeable) batteries of type AA
into the battery compartment (20) .
3) If the channel adjustment (
and the sensitivity adjustment (
item 6) have been made, replace the cover .
5.3 Connection and
fixing of the pocket transmitter
Connect one of the two supplied microphones
(headband microphone or tie-clip microphone)
to the mini XLR jack (26) . Put on the headband
microphone and, by bending the gooseneck
into a favourable speech position, bring it close
to your mouth or tightly clip the tie-clip micro-
phone to your clothes as close as possible to
your mouth .
After all adjustments have been made, at-
tach the transmitter via its rear clip (27) to your
clothes, e . g . at the belt or waistband .
5.4 Channel adjustment
9 transmission channels in the frequency range
of 863 to 865 MHz are available .
Switch position
Channel
0
0
863 .03 MHz
1
1
863 .23 MHz
2
2
863 .53 MHz
3
3
863 .73 MHz
4
4
864 .03 MHz
5
5
864 .23 MHz
6
6
864 .53 MHz
7
7
864 .73 MHz
8, 9, A – F
8
864 .93 MHz
When this wireless system is operated together
with other wireless transmission systems at the
same time, the radio frequencies of the individ-
ual systems should be carefully matched to each
other to prevent interference .
5.4.1 Adjusting the channel at the receiver
Turn the channel selector switch CHANNEL
SELECT (11) so that its arrow points to the
desired channel . For turning, use the adjusting
key (16) or (22) of the transmitter .
Example:
Channel 1 is adjusted .
5.4.2 Adjusting the channel on the transmitter
Turn the channel selector switch (15) or (23) at
the hand-held microphone
1
or pocket transmit-
ter
2
with the adjusting key (16) or (22) to the
same channel adjusted on the receiver .
Note: If the channel adjustment is changed during
operation, there will be no effect . Therefore, each
time the channel is changed, shortly switch off the
transmitter and then switch it on again .
6 Operation
1) Place the receiving antennas (1) into a vertical
position .
2) First switch on the receiver with the POWER
button (6): The LED AF PEAK (4) shortly lights
☞
chapter 5 .4)
up, the operating LED ON (5) lights up con-
tinuously .
If one of the reception LEDs (3) lights up
with the transmitter still switched off (hand-
held microphone
signals of other wireless systems are received
on the transmission channel adjusted . In this
case select another channel (for channel
adjustment, see chapter 5 .4) .
3) To switch on the transmitter, set the sliding
☞
chapter 5 .4)
switch (18) or (25) to "ON" . The LED BATT .
☞
chapter 6,
(17) or (24) shortly shows red .
If the LED during operation
– lights up continuously (with hand-held
microphone)
2
– flashes and then, with further operation,
lights up continuously (with pocket trans-
mitter),
the inserted batteries are almost exhausted .
4) With the transmitter switched on, one of the
re ception LEDs (3) lights up on the receiver:
either A or B, depending on the receiving
antenna A or B being active at present .
If it does not light up, check if:
a the transmitter has been set to the same
channel as the receiver .
b the batteries of the transmitter are ex-
hausted .
c the distance between the transmitter and
the receiver is too long .
Frequency
d the reception is disturbed by objects in the
transmission path; the transmitter and the
re ceiver should have a minimum distance
of 50 cm to metal objects and possible
sources of interference, e . g . motors or
fluorescent tubes .
e the reception can be improved by moving
the receiving antennas .
f the noise squelch has been adjusted too
high with the control SQUELCH (8), see
item 7 .
5) Switch on the following audio unit or ad-
vance the corresponding mixer control .
6) Speak / sing into the microphone and match
the output level of the receiver to the input
of the following unit with the control VOL-
UME (2) . If the receiver is overloaded by a
volume on the microphone which is too high,
the LED AF PEAK (4) lights up (independent
of the adjustment of the control VOLUME) .
On the pocket transmitter, the sensitivity
for the connected microphone can be ad-
justed via the control MT (19) and thus the
volume level of the microphone can be read-
justed: If the microphone signal is too high
and thus distorted, turn back the control with
the adjusting key (22) accordingly; however,
if the level is too low, a poor noise ratio oc-
curs, then turn up the control accordingly .
7) With the control SQUELCH (8) adjust the
threshold value at which the interference
suppression should respond . The further the
control is turned up clockwise, the higher the
or pocket transmitter
),
1
2
threshold value . For turning, use the adjust-
ing key (16) or (22) of the transmitter .
The interference suppression provides a
muting of the receiver if during music breaks
interfering signals of high frequencies are
received whose level is below the adjusted
threshold value . However, with a higher
threshold value also the range of the wire-
less system is reduced, as the receiver is also
muted when the power of the radio signal
of the transmitter falls below the adjusted
threshold value . Thus, with a good re ception
of the microphone signal a higher thresh-
old value can be adjusted with the control
SQUELCH . With a longer distance between
transmitter and receiver, however, a lower
value should be selected .
8) After operation switch off the receiver and
the transmitter:
– unlock the button POWER on the receiver,
the operating indication ON is extinguished .
– on the transmitter, adjust the sliding switch
to "OFF" . The indication BATT . shortly shows
red .
Note: If the microphone system is not used for a longer
time, disconnect the power supply unit of the receiver
from the socket, as it consumes a low current even if
the receiver is switched off .
7 Specifications
System type: � � � � � � � � PLL multifrequency system
Receiving technique: � � diversity
Radio frequency range: 863 – 865 MHz,
9 channels, see chap� 5�4
Transmission power:� � � < 10 mW (EIRP)
Range: � � � � � � � � � � � � approx� 30 m
HF noise ratio: � � � � � � � > 90 dB
Type of hand-held
microphone¹: � � � � � � � dynamic, cardioid
Audio frequency range: 50 – 15 000 Hz, ±3 dB
THD: � � � � � � � � � � � � � � < 1 %
Dynamic power: � � � � � � > 100 dB
Audio outputs
XLR: � � � � � � � � � � � � � 100 mV/ 10 kΩ, bal�
6�3 mm jack: � � � � � � � 50 mV/ 10 kΩ, unbal�
Ambient temperature: � 0 – 40 °C
Power supply
Receiver: � � � � � � � � � � 12 – 18 V (⎓)/ 0�3 A via the
supplied power supply unit
(230 V/ 50 Hz / 5 VA)
Transmitter: � � � � � � � � two 1�5 V batteries (or
two 1�2 V rechargeable
batteries) of type AA
Dimensions, weight
Receiver: � � � � � � � � � � 200 × 45 × 130 mm, 370 g
Hand-held
microphone¹: � � � � � � ⌀ 48 mm × 235 mm, 165 g
Pocket transmitter²: � � 65 × 110 × 30 mm, 105 g
Subject to technical modifications .
All rights reserved by MONACOR ® INTERNATIONAL
GmbH & Co. KG. No part of this instruction manual
may be reproduced in any form or by any means for
any commercial use.
1 . only for TXS-811SET
2 . only for TXS-831SET
7