SWS GRAFEX HF FREQUENCY PREDICTIONS ADDRESS NO. 1234 =============================================================================== Circuit: Busselton Perth Date: 31 August, 2024 T-index: 155 Bearings: 15 195 Distance: 196 km First Mode |--------F r e q u e n c y (MHz)---------| Second Mode 1F/1E: Near 90 1 5 10 15 20 25 30 35 40 ** NONE ** UT OWF EMUF ALF |...|....| ....|....| ....|....| ....|....| OWF EMUF ALF UT 00 9.2 3.6 2.9 AFFFFFF% . 00 01 10.2 4.1 3.3 BFFFFFF %. 01 02 10.8 4.5 3.5 AFFFFFF %. 02 03 11.3 4.7 3.6 AFFFFFF F%. 03 04 11.3 4.8 3.7 AFFFFFF F%. 04 05 11.3 4.8 3.7 AFFFFFF F%. 05 06 11.1 4.6 3.6 AFFFFFF F%. 06 07 11.0 4.4 3.4 BFFFFFF %.. 07 08 10.8 3.9 3.1 FFFFFFF %.. 08 09 10.5 3.2 2.6 AFFFFFFF %. 09 10 9.9 0.7 0.0 FFFFFFFFF% . 10 11 8.8 0.7 0.0 FFFFFFFF%. 11 12 7.5 0.7 0.0 FFFFFFF% 12 13 6.8 0.7 0.0 FFFFFF% 13 14 5.9 0.7 0.0 FFFFF%. 14 15 5.3 0.7 0.0 FFFFF%. 15 16 5.0 0.7 0.0 FFFF%.. 16 17 4.8 0.7 0.0 FFFF%.. 17 18 4.5 0.7 0.0 FFFF%. 18 19 4.3 0.7 0.0 FFFF%. 19 20 4.0 0.7 0.0 FFF%.. 20 21 3.9 0.7 0.0 FFF%. 21 22 4.4 0.7 0.0 FFFF%. 22 23 7.0 2.3 2.0 AFFFF%. 23 UT OWF EMUF ALF |...|....| ....|....| ....|....| ....|....| OWF EMUF ALF UT =============================================================================== |. USABLE LESS THAN 50% OF DAYS |% USABLE 50% TO 90% OF DAYS | |B BOTH E and F MODES 90% OF DAYS |M MIXED FIRST AND SECOND F MODES | |F FIRST F MODE ONLY |E E-LAYER PROPAGATION |P 90% E and 50-90% F | |S SECOND MODES ONLY |A HIGH ABSORPTION |X COMPLEX MODES | (c) 31-Aug-2024 BoM Space Weather Services, Sydney Australia +61-2-9213-8000