Yamaha SP2060 Processor Firmware 1.33 Mar 26, 2016
... be able to restore DME operation. - When DME64N/24N units running firmware version 3.5x or earlier and DME64N/24N or DME Satellite units running firmware versions 3.81 ... later are combined in the same device group, DME64N/24N units running firmware version 3.5x or earlier cannot ...