DTMF

DTMF projects

Reviewed by David • Senior RF Engineer & Technical Editor • March 2026

Sort:

1.7/5 (5)

CTCSS DTMF Tone Decoder and Encoder

CTCSS Decoder and Encoder, DTMF Decoder projects
5.0/5 (1)

DTMF Keypad project

DTMF Keypad for radios without one. A project with picture and schematic diagrams to homemade a DTMF keppad
No votes

DTMF Squelch and remote control decoder

This article describes how to build a general purpose DTMF decoder with a low-price chip from MITEL
3.0/5 (1)

APRS-to-DTMF Gateway on a Chip

Converting local APRS data to DTMF paging format for display on the tens of thousands of DTMF Paging Radios.
No votes

APRSTT Translator

APRSTT translate-O-Matic convert online your callsign in DTMF
No votes

ComTekk Tone Generator

Code Synthesizer for 2-way Radio Signaling works on Windows XP and Windows 7
2.0/5 (3)

CTCSS Tone and Encoder — VK3FLMV

About Continuous Tone Coded Squelch System. In the amateur radio community CTCSS encode is referred to as Tone in radio programming and CTCSS decode is referred to as tone squelch
No votes

DTMF in amateur radio

About usage of DTMF Dual Tone Multi Frequency in ham radio applications