IMG STAGE LINE 25.3630 Instruction Manual Download Page 7

Page: 7 / 14

English

5.2.1 Inserting the batteries into the hand-

held microphone

1) Unscrew the screw cover (14) .
2) Insert two (rechargeable) batteries of type AA

into the battery compartment (13) .

3) If the channel adjustment (

☞

chapter 5 .4)

has been made, screw on the cover again .

5.2.2 Inserting the batteries into the pocket

transmitter

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 (

☞

chapter 5 .4)

and the sensitivity adjustment (

☞

chapter 6,

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

Frequency

863 .03 MHz

863 .23 MHz

863 .53 MHz

863 .73 MHz

864 .03 MHz

864 .23 MHz

864 .53 MHz

864 .73 MHz

8, 9, A – F

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

or pocket transmit-

ter

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
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

or pocket transmitter

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

switch (18) or (25) to “ON” . The LED BATT .
(17) or (24) shortly shows red .
If the LED during operation
– lights up continuously (with hand-held

microphone)

– 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 .

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

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 .