PROPAGATION
What those S numbers mean
. . . S8 ..= 145.200
. . . S9.. = 145.225
. . . S10 = 145.250
. . . S11 = 145.275
. . . S12 = 145.300
. . . S13 = 145.325
. . . S14 = 145.350
. . . S15 = 145.375
. . . S16 = 145.400
. . . S17 = 145.425
. . . S18 = 145.450
. . . S19 = 145.475
. . . S20 = 145.500
. . . S21 = 145.525
. . . S22 = 145.550
. . . S23 = 145.575
. . . S24 = 145.587.5