16 Tone DTMF Generator Keypad

4.4
10 reviews
500+
Downloads
Content rating
Everyone
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About this app

CTCSS volume now 100% louder, x2, twice as loud.
Now able to name/rename DTMF strings.

No ads, nags, or in-app purchases. No internet connection required. Fully functional offline DTMF generator app.

Official DTMF pad of RFinder Android Radio http://androiddmr.com

Version 1.1.18+ includes support for encoding CTCSS tones 67.0 Hz to 254.1 Hz. Tap CTCSS button to turn CTCSS on/off. Tap again to loop CTCSS in the background. Long click to select CTCSS frequency. CTCSS volume adjustment is included for noisy environments.

This app will give you a 16 tone DTMF (Dual-tone multi-frequency) keypad plus a 1750Hz tone burst button for use with European repeaters, and the ability to generate custom DTMF sequences as well as set the duration and tone/silence ratio. Additionally, 52 CTCSS tones are included.

Included are the characters 1234567890*#, the AUTOVON tones ABCD, plus a 1750Hz button for European repeaters. You may enter a custom sequence via the keypad, soft keyboard, or speech if your device already has speech-to-text capability.

To clear the DTMF sequence, tap and hold the DTMF button. Use the Mute button to silence the keypad during programming. Use a period as space in the sequence.

If entering a string consisting of letters, please use lower case to prevent confusion with the AUTOVON priority tones ABCD. Other capital letters will be treated as pauses. For example, the string "DTMF" will be interpreted as AUTOVON "D" with three trailing pauses, whereas "dtmf" will be equivalent to "3863".

Add/Delete/Overwrite DTMF strings and settings:
To add an entry, enter the DTMF string and set other parameters. Hold the top message to save.
To delete an entry, recall the string and try to save it again. Hold the top message to delete.
To overwrite an entry, recall the string and edit parameters. Tap the top message to overwrite.

This app will work in both portrait and landscape modes. To manually set portrait or landscape, hold the Mute button to override the sensor orientation. Restarting the app returns it to sensor orientation.

This is basically a touch tone telephone keypad, which may be of interest to amateur ham radio repeater operators, phreakers, preppers, and survivalists. If your radio or microphone does not have DTMF or CTCSS/PL tones, then you can use this app instead.
Updated on
Jan 29, 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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Ratings and reviews

4.4
9 reviews
Nicholas van Stigt
October 24, 2023
Useful app, with a nice set of tone functions. My only requests/suggestions would be to make the CTCSS generator output truly continuous in loop mode (or to add a separate continuous mode). Right now it glitches out every few seconds with a loud click which is irritating if you are using it on air. It would also be useful if the app would keep the device awake whilst tones are active.
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Eddie Thompson
May 21, 2023
The overall CTCSS output level seems low from this app compared to other comparable apps, even when the app and device volume levels are set to full. I I couldn't use it to access repeaters compared to other apps.
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A Google user
September 22, 2017
App can be moved to external SD memory
7 people found this review helpful
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What's new

CTCSS improvements.
Additional Help information. Hold Help button to access.