Advanced Qualification · A-005 Transmitters, modulation and processing · A-005-001-001
Comment se fait le couplage de rétroaction positive vers l'entrée de l'oscillateur Hartley?
- AÀ travers un diviseur capacitif
- BPar un lien de couplage
- CPar un condensateur de neutralisation
- DÀ travers une bobine à prise
Correct answer: D — À travers une bobine à prise. Question tirée de la banque officielle d'ISDE.
Why
A Hartley oscillator creates the necessary positive feedback by using a single coil with a connection point in the middle, known as a tapped coil. 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