|
|
Post by andrewuwe on Feb 11, 2009 13:26:43 GMT
My radio controlled clock has recently stopped working. The transmitter is in the North of Britain and I am in the South but this is expected to be well within the range according the the MSF website. The signal is 60kHz, does anyone know if this is in the range of frequencies that are affected by low solar activity (like HAM radio) ?
|
|
|
|
Post by crakar24 on Feb 12, 2009 6:15:30 GMT
My radio controlled clock has recently stopped working. The transmitter is in the North of Britain and I am in the South but this is expected to be well within the range according the the MSF website. The signal is 60kHz, does anyone know if this is in the range of frequencies that are affected by low solar activity (like HAM radio) ? HAM radio uses the High Frequncy (HF) 3 to 30 Mhz band, and works by transmitting up into the ionosphere. The signals then get refracted or bent if you like and then return to the Earth (minus propogation loss etc) so they can cover great distances HF over the horizon radar works the same sort of way. The sun effects the Ionosphere the more active it is the further the HF signals can travel and the bigger the frequency range available to them. I am unfamiliar with your "radio controlled clock" or how the system works but at 60Khz you would be using line of sight so no the sun would have very little effect. Hope this helps Cheers |
|
