Technician exam question T8C09
Subelement T8, SIGNALS AND EMISSIONS· Group T8C
Which of the following protocols enables an amateur station to transmit through a repeater without using a radio to initiate the transmission?
- A.IRLP
- B.D-STAR
- C.DMR
- D.EchoLink (correct answer)
WhyEchoLink is the protocol that enables an amateur station to transmit through a repeater without using a radio to initiate the transmission. EchoLink includes a computer or smartphone client that lets a user connect into the EchoLink network and reach a repeater without ever keying an actual radio to originate the transmission, answer D. IRLP (A), D-STAR (B), and DMR (C) all still require transmitting from an actual radio to access the system, unlike EchoLink's software-only access path.
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.
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