Extra exam question E2D11
Subelement E2, OPERATING PROCEDURES· Group E2D
E2D11
How do APRS stations relay data?
- A.By packet ACK/NAK relay
- B.By C4FM repeaters
- C.By DMR repeaters
- D.By packet digipeaters (correct answer)
WhyAPRS stations relay data through packet digipeaters. APRS stations relay data through packet digipeaters, other APRS stations configured to receive and automatically retransmit packets so they can reach farther than a single station's direct range, answer D. ACK/NAK relay, C4FM repeaters, and DMR repeaters are unrelated mechanisms from other digital voice or packet-acknowledgment systems.
Published 2026-08-28 · Last updated 2026-08-28 · Question text is verbatim from the 2024-2028 NCVEC Element 4 pool (public domain); the explanation above is original writing, see our methodology.
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