Sony DWM02/14 Manual page 25

Grouping for digital wireless system
Guidance on the use of a multi-channel system using digital wireless system
When building up the system with digital wireless devices only, channel intervals can be fixed. No special calculations are necessary to
avoid intermodulations. Set channel intervals to 375 kHz or more.
When building up a multi-channel system, Sony recommends that one of the following groups is selected to avoid mutual interference
from other Sony wireless microphones/transmitters:
– Groups D1 to D4 are for using 12 channels of transmitting frequencies in one TV channel.
– Groups D5 to D8 are for using 24 channels of transmitting frequencies in two TV channels.
– Group D9 is for using 48 channels of transmitting frequencies in four TV channels.
Notes
• The reliability of this channel plan is assured when the RF power output of the transmitter/microphone is 1 mW or 10 mW and distances
of transmitters/microphones are 30 cm (11
• When the distances between transmitters and microphones need to be closer than the distances above, use a grouping system for multi-
channel systems that include both digital wireless and analog wireless devices.
Group D1
Grouping 12 channels
Channel Frequency
42 - 02 638.250
42 - 06 638.750
42 - 10 639.250
42 - 14 639.750
42 - 18 640.250
42 - 22 640.750
42 - 26 641.250
42 - 30 641.750
42 - 34 642.250
42 - 38 642.750
42 - 42 643.250
42 - 46 643.750
Group D4
Grouping 12 channels
Channel Frequency
45 - 02 656.250
45 - 06 656.750
45 - 10 657.250
45 - 14 657.750
45 - 18 658.250
45 - 22 658.750
45 - 26 659.250
45 - 30 659.750
45 - 34 660.250
45 - 38 660.750
45 - 42 661.250
45 - 46 661.750
7
/ inch) or more.
8
Group D2
Grouping 12 channels
Channel
43 - 02
43 - 06
43 - 10
43 - 14
43 - 18
43 - 22
43 - 26
43 - 30
43 - 34
43 - 38
43 - 42
43 - 46
Group D5
Grouping 24 channels
Channel
42 - 01
42 - 05
42 - 09
42 - 13
42 - 17
42 - 21
42 - 25
42 - 29
42 - 33
42 - 37
42 - 41
42 - 45
43 - 02
43 - 06
43 - 10
43 - 14
43 - 18
43 - 22
43 - 26
43 - 30
43 - 34
43 - 38
43 - 42
43 - 46
Group D3
Grouping 12 channels
Frequency
644.250
644.750
645.250
645.750
646.250
646.750
647.250
647.750
648.250
648.750
649.250
649.750
Group D6
Grouping 24 channels
Frequency
638.125
638.625
639.125
639.625
640.125
640.625
641.125
641.625
642.125
642.625
643.125
643.625
644.250
644.750
645.250
645.750
646.250
646.750
647.250
647.750
648.250
648.750
649.250
649.750
Channel Frequency
44 - 02 650.250
44 - 06 650.750
44 - 10 651.250
44 - 14 651.750
44 - 18 652.250
44 - 22 652.750
44 - 26 653.250
44 - 30 653.750
44 - 34 654.250
44 - 38 654.750
44 - 42 655.250
44 - 46 655.750
Channel Frequency
44 - 01 650.125
44 - 05 650.625
44 - 09 651.125
44 - 13 651.625
44 - 17 652.125
44 - 21 652.625
44 - 25 653.125
44 - 29 653.625
44 - 33 654.125
44 - 37 654.625
44 - 41 655.125
44 - 45 655.625
45 - 02 656.250
45 - 06 656.750
45 - 10 657.250
45 - 14 657.750
45 - 18 658.250
45 - 22 658.750
45 - 26 659.250
45 - 30 659.750
45 - 34 660.250
45 - 38 660.750
45 - 42 661.250
45 - 46 661.750
Frequency unit: MHz