What statement is true regarding the exchange between two parties engaged in SITOR (NBDP) communications?

Question

Accepted Answer

In ARQ, the ISS transmits a block of 3 characters and the IRS checks for parity . If the received block is correct a one-character control signal is sent notifying the ISS to proceed with the next block. If the parity check fails the block must be resent .

Answer

In ARQ, each character is transmitted twice, with the second displaced in time from the first.

Answer

In ARQ, the "sending" station transmits a block of three characters and the "receiving" station responds with a one character Repeat Request. Following this the "transmitting" station will send a new block.

Answer

Broadcasts of Maritime Safety Information, traffic lists, etc. can be copied by the receiving station in ARQ mode.

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