An issue has been recently highlighted where Impaired radio: CH1 inoperative, CH2 inoperative & DSC inoperative alerts may appear on the B400 screen. In some events, this may stop the unit from transmitting. A software update is available to resolve this, and the link to this is contained within this product change notification.
All deliveries from em-trak will have this update installed.
Modem: 130200.02.05.00
PCN 64 can be downloaded here - https://em-trak.sharefile.com/public/share/web-se1cc317a99704e09bd1798681ef7f444
If any support is required with this please contact support@em-trak.com