Question

How does the data rate of KNX RF-Multi slow channels compare with the fast channels?

KNX BasicLearnKNX RFMedium
Answer

C — It is half the data rate of the fast channels, mainly because of the extended preamble

Correct: slow channels run at half the speed of fast channels, mainly due to the longer preamble.

Source

KNX Basic Course Documentation — 3.2 — p. 145

All proposed choices (exam context)
  1. A.It is one quarter of the fast-channel data rate
  2. B.It is the same as the fast channels
  3. C.It is half the data rate of the fast channels, mainly because of the extended preamble
  4. D.It is double the data rate of the fast channels
Full bank

Keep going with the full KNX Basic bank

Keep going with the full KNX Basic bank: unlimited timed mock exams, detailed answers, history. From €9 (one-time payment).

See pricing — from €9
Want more?

See the 9 other KNX Basic practice questions

Related questions

Question from our independent practice bank. KNX Basic is a registered trademark of KNX Association, not affiliated with CertifBus.

Last updated: 19 May 2026

See pricing — from €9
KNX Basic pack · from €9
KNX BASIC & ADVANCED

Ready to find out where you really stand?

10 free questions every day, no account needed. Full access only if you decide to go all the way.

+1/−0,5 official scoringFR·EN·DE interface and explanations9 from · one-time payment
Newsletter

Get launch announcements

We'll email you when new KNX questions, a guide or a tool is published. No spam.

Unsubscribe in 1 click. No sharing with third parties.