7R-26D2 A
 If your vessel has suffered a casualty severe enough to disable both ship's power and the GMDSS console RSE you should:
A. Activate the EPIRB and/or use the SCT to make a "Mayday" call on Ch-16.
B. Use UHF Transceivers to contact other vessels.
C. Activate the EPIRB and/or use the SCT to make a "Mayday" call on Ch-70.
D. Make a "Mayday" call on Ch-70 and Ch-06 using the Survival Craft Transceiver.
