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5 Operation
5.1 Selection of the transmitting
frequency and receiving frequency
The wireless transmission is made in the frequency
range of 863 – 865 MHz on 16 fixed channels (fre-
quencies of the channels
mitter and receiver must be adjusted to the same
channel, otherwise no signal transmission will be
possible.
5.1.1 Adjusting the frequency on the receiver
As it is possible that some frequencies are already
reserved by other users of wireless systems at the
place of application, first the receiver should be
adjusted to the desired channel with the transmitter
switched off. If a signal is already received on the
frequency [the LED RF (5) on the receiver lights
up], another channel should be selected to prevent
mutual interference. To adjust the channel, make
the following steps:
1) Switch on the receiver with the POWER switch
(2). The power LED (3) lights up.
2) Adjust a free channel via the rotary switch CH
(4) by means of the trimming key supplied with
the transmitter or by means of a small screw-
driver.
Example:
Channel 12 is adjusted.
“
5.1.2 Adjusting the frequency on the transmitter
1) Switch on the transmitter with the button ON /
OFF MUTE (24). The LED (25) shows green. If
it shows red, the battery is almost exhausted
and has to be replaced soon (
2) By means of the trimming key supplied adjust
the rotary switch CH (17) to the channel of the
receiver. The LED RF (5) on the receiver should
show red or green now (depending on the
antenna receiving the signal). If the LED does
not show red or green, check if:
– the receiver has been switched on
– the distance to the receiver is too large or
there are obstacles in the transmission path
which may shield the radio signal
– transmitter and receiver have been adjusted
to the same channel
chapter 6.1). Trans-
chapter 4.3).
5.2 Adjusting the level
1) Switch on the receiver with the POWER switch
(2). The power LED (3) lights up. Switch on the
connected amplifier system.
2) For the time being, turn up the control VOL (7)
approx. halfway.
3) Switch on the transmitter with the button ON /
OFF MUTE (24). The LED (25) shows green. If
it shows red, the battery is almost exhausted
and has to be replaced soon (
4) For the time being, turn up the control GAIN (19)
approx. halfway by means of the supplied trim-
ming key.
5) Turn up the volume control of the guitar and play
a loud chord or a sound of high volume on the
instrument the microphone is directed to.
In addition to the LED RF (5), now the LED AF
(6) on the receiver should light up when a sound
is played. The sound should be heard via the
amplifier system.
If the LED AF does not light up and the vol-
ume of the sound is too low, turn up the control
GAIN further clockwise. If the sound is distorted,
slightly turn back the control.
6) Tune the output level of the receiver to the input
of the connected amplifier or mixer with the con-
trol VOL (7). In addition, when using the XLR
output, the output level may be attenuated by
20 dB with the switch OUTPUT LEVEL (8) [e. g.
for connection to a microphone input].
5.3 Switching off the units
Switch off the transmitter after use and if it is not
used for a longer interval in order to save the bat-
tery. For this purpose keep the button ON / OFF
MUTE (24) pressed for approx. 2 s until the LED
(25) will be extinguished. For shorter interruptions
of the playing, only press the button shortly, then
the LED flashes and the transmitter is muted until
the button will be pressed again.
Switch off the receiver with the POWER switch
(2). If the receiver is not used for a longer time, dis-
connect the power supply unit from the mains as it
will have a low power consumption even if the
receiver is switched off.
chapter 4.3).
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