So Long, CHU, and Thanks for All the Time Signals
The Canadian time signal station CHU will cease operations on June 22, 2026, after providing time signals since 1923. Originally transmitting in Morse code, CHU evolved to include a speaking clock and digital time codes. While the closure is a cost-saving measure by the Government of Canada, many will miss the iconic time signals.
- ▪CHU has been broadcasting time signals since its establishment in 1923.
- ▪The station will go dark on June 22, 2026, after nearly a century of service.
- ▪Listeners can still request QSL cards before the station shuts down.
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| Original publisher | Hackaday |
| Canonical URL | https://hackaday.com/2026/05/27/so-long-chu-and-thanks-for-all-the-time-signals/ |
| Publication time | Wed, 27 May 2026 11:00:55 +0000 |
| Retrieval time | 2026-05-27T11:02:59.389Z |
| Last seen | 2026-05-27T11:02:59.389Z |
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| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
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| Cluster | DUJa5ioslxiU |
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| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
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So Long, CHU, And Thanks For All The Time Signals No comments by: Tyler August May 27, 2026 Title: Copy Short Link: Copy In the long ago, pre-internet days when your clock project wasn’t an ESP32 getting its timing via NTP over WiFi, it was still possible to build a wirelessly-updating clock. All you needed was a shortwave receiver tuned to a time signal — perhaps like the National Research Council of Canada’s CHU, found on the dial at 3330, 7850, and 14 670 kHz. At least, it can be found at those frequencies until June 22nd, 2026, when the station will finally go dark. Depending where you were on Earth, it might have been easier to tune into CHU than the United States based WWVB, or one of the various European signals like DF44 or the UK’s MSF.
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