Technician exam question T8D08
Subelement T8, SIGNALS AND EMISSIONS· Group T8D
Which of the following is included in packet radio transmissions?
- A.A checksum that permits error detection
- B.A header that contains the call sign of the station to which the information is being sent
- C.Automatic repeat request in case of error
- D.All these choices are correct (correct answer)
WhyPacket radio transmissions include a checksum for error detection, a header with the destination call sign, and automatic repeat request in case of error. Packet radio frames include a checksum for error detection, a header carrying addressing information such as the destination call sign, and an automatic repeat request mechanism to recover from errors, so all three are correct, answer D. Picking only one of A, B, or C would leave out other genuine parts of a packet radio frame.
Published 2026-08-28 · Last updated 2026-08-28 · Question text is verbatim from the 2026-2030 NCVEC Element 2 pool (public domain); the explanation above is original writing, see our methodology.