SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/ham-dmr-time-slots

Which of the following describes DMR?

Time-multiplexing two digital voice signals on one 12.5 kHz repeater channel.

  1. Automatic position tracking for FM mobiles
  2. Hands-off computer logging while driving
  3. Two digital voice signals sharing one 12.5 kHz channel ✔

Why: DMR, Digital Mobile Radio, splits a 12.5 kHz channel into two time slots. Each slot can carry a separate digital voice conversation.

Huh, didn't know that: To join a DMR talkgroup, you program your radio with the group's ID or code.

The dad joke
Why are DMR radios so good at sharing? They take turns, one time slot at a time.
Like this card?
Play the game

Sources

  1. NCVEC 2026-2030 Technician Question Pool (Feb 19, 2026 release) https://www.ncvec.org/downloads/2026-2030%20Technician%20Pool%20and%20Syllabus%20Public%20Release%20Feb%2019%202026.pdf

Test yourself in the game

Ham RadioWhat is FT8?Ham RadioWhich is an application of APRS?Ham RadioWhich agency makes and enforces the rules for amateur radio in the United States?

That's stuff everyone should know.