Your rating: None Average: 5 (5 votes)

NRad is an experimental client for Zello, the leading push-to-talk service providing instant voice communication to over 130 million users worldwide.

(It's also famous for being used to organize anti-government protests in places like Hong Kong or Venezuela)


You will need a Zello account to transmit or to access some restricted channels.

Because of API limitations the official Zello app (Android/iOS/Windows PC) is required to open an account with Zello but can be downloaded (without Play store) from

This is experimental software - It stores passwords in clear text and may occasionally crash.


Application versions: 
File harbour-nrad-0.4.1-1.armv7hl.rpm3.62 MB18/05/2020 - 11:39
File harbour-nrad-0.4.2-1.armv7hl.rpm3.62 MB19/05/2020 - 09:56
File harbour-nrad-0.4.3-1.armv7hl.rpm3.62 MB20/05/2020 - 12:45
File harbour-nrad-0.4.4-1.armv7hl.rpm3.62 MB21/05/2020 - 23:46
File harbour-nrad-0.4.5-1.armv7hl.rpm3.62 MB30/05/2020 - 01:10

0.1.0 initial proof of concept release

0.1.1 fixes stuck rx/tx status when switching channels

0.1.2 adds basic channel search

0.1.3 adds select and save channel from search page

0.1.4 adds recovery from connection errors

0.1.5 fixes sound issues when jumping between sampling rates

0.1.6 adds status and a re-designed cover page 

0.1.7 fixes sound issues occurng after prolonged use

0.1.8 fixes minor reconnection issues and issues with key expiration

0.1.9 fixes minor qml errors and improves usability

0.2.0 adds conversations page

0.2.1 fixes forced scrolling to bottom in conversations

0.2.2 introduces sections and indicators to the conversations page

0.2.3 improves channels search

0.2.4 adds optional monitoring channel

0.2.5 adds support for receiving text messages

0.2.6 adds support for receiving location messages

0.2.7 adds support for receiving picture messages

0.2.8 adds support for sending text messages

0.2.9 fixes stuck online users display

0.3.0 adds initial support for notification sounds

0.3.1 adds notifications

0.3.2 adds notification sounds

0.3.3 adds some minor visual changes

0.3.4 adds optional PTT button to the conversations page

0.3.5 adds ability to send own location

0.3.6 adds channels overview page

0.3.7 adds channel icons to cover page

0.3.8 improves error handling and fixes crashes when dealing with non-ascii characters

0.3.9 adds support for hardware keys

0.4.0 adds additional notification sound

0.4.1 improves enabling/disabling of monitoring channel

0.4.2 adds support for wired headset keys

0.4.3 fixes multiple pulse sinks being created unnecessarily

0.4.4 adds mute buttons

0.4.5 fixes display issues with list of hardware buttons