What is the difference in these frequencies. I hear the same thing being transmitted on CW1 and SI CW1
470.68750 WIK936 R 100.0 PL CW1 CW1 FM Law Dispatch
482.66250 WIM487 R 100.0 PL SI CW1 SI CW1 FM Law Dispatch
470.71250 WIK929 R 110.9 PL CW2 CW2 FM Law Dispatch
482.63750 WIM654 R 110.9 PL SI CW2 SI CW2 FM Law Dispatch
What does SI stand for?
Thanks
Mike
470.68750 WIK936 R 100.0 PL CW1 CW1 FM Law Dispatch
482.66250 WIM487 R 100.0 PL SI CW1 SI CW1 FM Law Dispatch
470.71250 WIK929 R 110.9 PL CW2 CW2 FM Law Dispatch
482.63750 WIM654 R 110.9 PL SI CW2 SI CW2 FM Law Dispatch
What does SI stand for?
Thanks
Mike