E1/SC: Equipment Operations

Question 1

VHF Radio INT-USA Control

Answer 1

INT-USA setting on a VHF Radio

• Used to change certain international Duplex channel assignments to simplex in the U.S. for VTS and other purposes.

Question 2

Aircraft frequency and emission used for distress communications

Answer 2

Aircraft frequency and emission used for distress communications

• 121.5 MHz - A3E

Question 3

Bridge-to-Bridge Communication

Answer 3

Bridge-to-Bridge Communication

• VHF Communication on Channel 13

Question 4

Ship-to-Ship Voice Traffic

Answer 4

Ship-to-Ship Voice Traffic

• VHF Channel 8

Question 5

Ship-to-Shore Telephone

Answer 5

Ship-to-Shore Telephone

• VHF Channel 28 is the correct test answer
• VHF Channels 24 - 28 and Channels 84 - 87 historically operate ship-to-shore telephone.
• The Ship-to-Shore Telephone service is seldomly operated anymore.