Stations, Frequencies and Geographic Coordinates
The following data were obtained from the International Frequency List
published by the ITU and other sources.
| Station | Frequencies | Coordinates | 
| WWV Ft. Collins, CO | 2.5/5/10/15/20 MHz | 40:40:49.0N 105:02:27.0W | 
| WWVB Ft. Collins, CO | 60 kHz | 40:40:28.3N 105:02:39.5W | 
| WWVH Kauai, HI | 2.5/5/10/15 MHz | 21:59:26.0N 159:46:00.0W | 
| CHU Ottawa, CA | 3330/7335/14670 kHz | 45:18N 75:45N | 
| DCF77 Mainflingen, DE | 77.5 kHz | 50:01N 9:00E | 
| MSF Rugby, UK | 60 kHz | 52:22N 1:11W | 
| TDF Allouis, FR | 162 kHz | 47:10N 2:12E | 
| JJY ( Fukushima, JAPAN ) | 40 KHz | 37:22 N   140:51 E | 
| JJY ( Saga, JAPAN ) | 60 KHz | 33:28 N   130:11 E | 
 David L. Mills <mills@udel.edu>
 David L. Mills <mills@udel.edu>