Sony DWRS02D/30 Technical Chart (DWX Frequency List) - 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 7/8 inch) or more. • When the distances between transmitters and microphones need to be closer than the distances above, use a grouping system for multichannel systems that include both digital wireless and analog wireless devices. Group D1 Grouping 12 channels Channel 42 - 02 42 - 06 42 - 10 42 - 14 42 - 18 42 - 22 42 - 26 42 - 30 42 - 34 42 - 38 42 - 42 42 - 46 Frequency 638.250 638.750 639.250 639.750 640.250 640.750 641.250 641.750 642.250 642.750 643.250 643.750 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 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 D3 Grouping 12 channels Channel 44 - 02 44 - 06 44 - 10 44 - 14 44 - 18 44 - 22 44 - 26 44 - 30 44 - 34 44 - 38 44 - 42 44 - 46 Frequency 650.250 650.750 651.250 651.750 652.250 652.750 653.250 653.750 654.250 654.750 655.250 655.750 Group D4 Grouping 12 channels Channel 45 - 02 45 - 06 45 - 10 45 - 14 45 - 18 45 - 22 45 - 26 45 - 30 45 - 34 45 - 38 45 - 42 45 - 46 Frequency 656.250 656.750 657.250 657.750 658.250 658.750 659.250 659.750 660.250 660.750 661.250 661.750 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 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 Group D6 Grouping 24 channels Channel 44 - 01 44 - 05 44 - 09 44 - 13 44 - 17 44 - 21 44 - 25 44 - 29 44 - 33 44 - 37 44 - 41 44 - 45 45 - 02 45 - 06 45 - 10 45 - 14 45 - 18 45 - 22 45 - 26 45 - 30 45 - 34 45 - 38 45 - 42 45 - 46 Frequency 650.125 650.625 651.125 651.625 652.125 652.625 653.125 653.625 654.125 654.625 655.125 655.625 656.250 656.750 657.250 657.750 658.250 658.750 659.250 659.750 660.250 660.750 661.250 661.750 Frequency unit: MHz