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Hamclock Support [email protected]
Open Source HamClock and Backend
HamClock is a kiosk-style application that provides real time space weather, radio propagation models, operating events and other information particularly useful to the radio amateur. HamClock was introduced in an October 2017 QST article. In early 2026, the community of HamClock enthusiasts was sad to learn that the creator of HamClock was now an SKand that the HamClock site announced:
HamClock has reached end-of-life, the last release is version 4.22.
All HamClocks will cease to function in June 2026.
Thank you for your interest.
Elwood Downey, WB0OEW, <[email protected]>
Clear Sky Instutute's HamClock consisted of an open source front-end client and a closed-source backend server. The client required the backend server to work. Since the news, a few efforts have kicked off to maintain or create something similar for the future.
Two Projects
The Client - HamClock
The HamClock project is the kiosk-style client that users run in their home network. The HamClock client requires a server-based backend to function. An installation requires selection of the backend server to which the client will connect.
Server Backends
Open HamClock Backend
The Open HamClock Backend (OHB) project has created an open source project compatible with Clear Sky Institute's HamClock client. This same group is also developing the frontend HamClock client to fix bugs and add new features.
Hamclock.com
There is another effort at https://hamclock.com which is a closed-source backend, also compatible with Clear Sky Institute's HamClock client.Recent Topics
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