095D D
 Why must the GMDSS operator be able to set-up FEC & ARQ modes and differentiate between them?
a) The proper mode must be selected for reception of HF MSI. 
b) The proper mode must be selected for follow-on TELEX communications in a Distress situation.
c) The ARQ TELEX mode must be selected for follow-on TELEX communications in a Distress situation and the FEC TELEX mode selected for reception of HF MSI. 
d) Both a) and b) are correct
