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DQM Series
User Manual
7
Troubleshooting & Frequencies
Troubleshooting:
Problem
Possible cause
Solution
Receiver – no sound
No RF signal
Check antenna placement for interference from metallic
objects (e.g. rack enclosures) or other sources of
RF interference (e.g. in ear monitor transmitters)
IR Sync operation has not been carried out successfully.
Complete channel selection and IR sync in accordance
with this manual.
Receiver – no LED
Power button is in the OFF position. DC power adapter
is not plugged in
Turn on the power button plug in the power adapter
Microphone - no sound
but LED indicators are lit
Mic transmitter is out of range. Mic is switched off. Mic
volume it turned down. Batteries in mic are not installed
properly. Receiver is not connected to an amp or mixer.
Ensure that the mic is within range. Turn on the mic switch.
Turn up the mic volume on the receiver. Reinstall or use new
batteries. Connect an output cable to an amp or mixer
Distorted sound or feedback
The 4 mics may be too close together. Batteries are running
out of charge. Mic volume may be too high. Possible
interference from another source.
Increase the distance between mics. Replace the batteries.
Reduce the volume. Move the system away from other
electric sources.
Frequencies:
DQM 800H Series Frequencies:
Channel
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 8
Group 9
Group 10
CH1
823.000
864.950
863.100
830.850
863.100
823.000
823.000
823.100
823.200
826.900
CH2
823.875
864.350
863.500
829.000
863.500
823.375
823.875
823.500
823.600
831.300
CH3
824.500
863.975
864.200
828.225
864.300
826.125
824.500
824.100
824.200
863.000
CH4
827.175
863.150
864.800
825.250
864.900
826.575
827.175
824.900
825.000
863.600
CH5
831.800
863.525
824.675
827.975
829.625
826.100
826.200
864.000
CH6
864.425
864.200
831.800
831.800
827.700
827.800
CH7
823.375
863.175
824.500
865.000
829.900
830.000
CH8
824.900
863.600
824.900
823.375
864.700
864.800
CH9
826.575
825.975
827.175
824.900
825.275
825.375
CH10
827.975
864.650
829.625
825.425
826.575
826.675
CH11
829.625
830.350
826.125
828.400
828.500
CH12
830.350
823.875
826.575
830.950
831.050
CH13
863.425
825.425
827.975
CH14
864.900
828.525
828.525
CH15
825.425
830.350
CH16
826.125
864.050
CH17
828.525
DQM 600H Series Frequencies:
Channel
Group 1
Group 2
Group 3
Group 4
Group 5
Group 6
Group 7
Group 8
Group 9
Group 10
CH1
606.175
607.000
606.275
606.825
607.000
606.625
606.500
608.000
606.975
606.500
CH2
608.050
607.350
606.875
607.250
607.625
607.675
607.350
608.925
607.600
606.875
CH3
609.125
608.400
607.800
607.975
608.975
608.525
608.000
610.075
609.675
607.375
CH4
609.525
608.850
608.200
608.900
609.500
610.175
611.000
611.475
612.725
608.000
CH5
611.775
610.875
610.925
610.350
610.750
610.625
611.400
613.125
606.475
608.425
CH6
612.600
611.625
611.725
611.175
612.250
611.575
613.275
606.500
608.000
609.375
CH7
613.100
612.175
613.350
612.525
612.975
612.175
606.875
606.875
608.525
609.775
CH8
613.825
613.825
613.850
613.150
613.400
613.375
609.325
607.375
609.225
610.475
CH9
606.775
613.175
610.475
611.550
611.775
607.275
609.775
608.400
610.275
611.000
CH10
607.550
606.475
612.050
608.350
606.550
611.275
610.475
609.625
611.075
611.400
CH11
611.200
612.000
610.675
611.625
612.200
CH12
612.025
613.450
612.800
CH13
606.100
613.275