%Frequency: start frequency of the disturbed half-Hz band 498.50 499.00 499.50 500.00 500.50 501.00 501.50 502.00 502.50 503.00 503.50 504.00 504.50 505.00 505.50 506.00 506.50 507.00 507.50 508.00 508.50 509.00 509.50 510.00 510.50 511.00 511.50 512.00 512.50 513.00 513.50 945.00 1010.00 1010.50 1011.00 1011.50 1012.00 1012.50 1013.00 1013.50 1014.00 1014.50 1015.00 1015.50 1016.00 1016.50 1017.00 1017.50 1018.00 1018.50 1019.00 1019.50 1020.00 1020.50 1021.00 1021.50 1022.00 1022.50 1023.00 1024.00 1024.50 1025.00 1025.50 1026.00 1456.00 1456.50 1457.00 1461.50 1462.00 1462.50 1463.00 1467.50 1468.00 1470.00 1470.50 1471.00 1471.50 1472.00 1472.50 1473.00 1473.50 1474.00 1474.50 1475.00 1475.50 1476.00 1476.50 1477.00 1477.50 1478.00 1478.50 1482.50 1483.00 1483.50 1484.00 1493.00 1493.50 1494.00 1494.50 1495.00 1495.50 1496.00 1496.50 1497.00 1497.50 1498.00 1498.50 1504.00 1504.50