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®
PROFESSIONAL AUDIO & SOUND
OPERATING INSTRUCTIONS
Before switching on the receiver, make sure that the units antenna system is
attached and placed at 45 degree angles opposite of each other (Polarization
Diversity) and that the unit is positioned in an unobstructed location.
FRONT AND REAR PANEL CONTROL
RDU216
1
2
POWER
ON
9
10
11
1.
Power switch
2.
Power on indicator
3.
RF signal indicator
4.
Diversity indicator
5.
AF signal indicator
RF test button
6.
7.
Channel selector
8.
Volume control
9.
Antenna B socket
10.
XLR ( balanced ) audio output
11.
Unbalanced audio output
12.
Squelch ( SQ ) control.
13.
D C IN jack
14.
Antenna A socket
Now switch on the transmitter (please refer to transmitter operating instructions).
The RF indicator will light up when the correct channel is selected, indicating that
the radio signal transmitted has been received.
Use RF test button to test if there is interference around. If there is interference
around, the RF signal level LED will light up. The receiver is indicating to switch to
another frequency.
When an audio signal into the microphone, the audio indicator will flash to show
the strength of the audio level.
3
4
5
6 7
8
®
RDU216
PLL TRUE DIVERSITY RECEIVER
9
7
11
PROFESSIONAL AUDIO & SOUND
A
B
5
13
MIN
MAX
3
15
1
RF SIGNAL LEVEL
DIVERSITY
AF SIGNAL LEVEL
RF-TEST
CHANNEL
VOLUME
12
13
14
3
CHANGING OF CAPSULE
The MW165U has a module design. To change or replace a capsule, Open the grill to pull out
and plug in the capsule as shown in the following figure.
SENSITIVITY SWITCH
The MW165U has a sensitivity switch, For close singing or normal speech put the switch to
the N (normal) position. For tripod-mount speech, put the switch to the H (high) position.
SENS
H
N
Low Sensitivity
OPERATING INSTRUCTIONS
Before operation, please check and make sure that transmitter & receiver are of
matching channels.
To switch on the microphone, put the switch to "ON" position. The red LED indicator will
light briefly indicating that battery is fresh. When the RED LED light is steady, it indicates
that battery is weak, thus a replacement is necessary.
For best results, an alkaline battery is recommended. Please remove the battery if the
transmitter is not to be used for a longer period.
When necessary, the MW165U microphone capsule can be replaced by pulling out and
plugging in the new one.
For close singing or speaking, put the sensitivity switch to N (Normal) and for mic stand
applications or when the speaker stands away
H (High). Be careful to put back the sensitivity switch to N for close singing as H (High)
sensitivity for close vocal applications may cause distortion.
When holding the handheld microphone, please do not hold the antenna end of the unit
for it will severely affect the efficiency of the transmission range.
MW165U
SENS
H
N
High Sensitivity
at a distance
, put the sensitivity switch to
8
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