| Broadcast area | North America Worldwide |
|---|---|
| Frequency | 3.33 MHz, 7.85 MHz, 14.67 MHz |
| Programming | |
| Language(s) | English, French |
| Format | Time |
| Ownership | |
| Owner | National Research Council of Canada |
| History | |
First air date | 1923 |
Former call signs | 9CC (1923–1928), VE9CC (after 1928) VE9OB (until 1938) |
| Technical information | |
| Power | 3 kW (3.33, 14.67 MHz), 5 kW (7.85 MHz) |
Transmitter coordinates | 45°17′41.3″N 75°45′28.3″W / 45.294806°N 75.757861°W |
| Links | |
| Website | NRC Short Wave Station Broadcasts (CHU) |
CHU is the call sign of a shortwave time signal radio station operated by the Institute for National Measurement Standards of the National Research Council.[1] CHU's signal is used for continuous dissemination of official Canadian government time signals, derived from atomic clocks.