Advanced Qualification · A-005 Transmitters, modulation and processing · A-005-008-009
En radioamateur, à quel mode d'émission est associé le terme AX.25?
- ARTTY
- BASCII
- CPhonie par étalement du spectre ("spread spectrum")
- DPaquet
Correct answer: D — Paquet. Question tirée de la banque officielle d'ISDE.
Why
AX.25 is the specific rulebook that computers follow to send digital data in small chunks called packets over amateur radio. The full explanation — and one for every question — is in Pro.
Practise this section
Transmitters, modulation and processing is section A-005 of the Advanced exam: Transmitters, modulation and processing: AM, FM, SSB, keying, speech processing, and the numbers behind occupied bandwidth.
Drill A-005 — free, no account