SWS GRAFEX HF FREQUENCY PREDICTIONS ADDRESS NO. 1234 =============================================================================== Circuit: Esperance Perth Date: 13 November, 2026 T-index: 70 Bearings: 289 112 Distance: 602 km First Mode |--------F r e q u e n c y (MHz)---------| Second Mode 1F 38-51 1E 15 1 5 10 15 20 25 30 35 40 2F 58-68 2E 30 UT OWF EMUF ALF |...|....| ....|....| ....|....| ....|....| OWF EMUF ALF UT 00 6.3 7.9 3.9 XMMM%.. 5.6 4.8 3.2 00 01 6.6 8.6 4.2 SXMMP.. 5.9 5.2 3.4 01 02 7.1 9.1 4.4 AXMMMP. . 6.4 5.5 3.5 02 03 7.6 9.3 4.5 AXMMMP. . 6.9 5.7 3.6 03 04 7.9 9.4 4.5 AXMMMM% .. 7.1 5.8 3.6 04 05 8.0 9.3 4.5 AXMMMM% .. 7.1 5.7 3.6 05 06 7.7 9.1 4.4 AXMMMP. .. 6.8 5.6 3.5 06 07 7.5 8.7 4.2 SXMMM%. . 6.7 5.3 3.4 07 08 7.4 8.1 4.0 XMMMM%. . 6.6 4.9 3.2 08 09 7.4 7.1 3.6 AXMMMM%. . 6.5 4.3 2.9 09 10 7.0 5.7 3.0 XMMMMM%. . 6.2 3.4 2.4 10 11 6.6 1.2 0.0 MMMMMMM%%. 5.9 0.7 0.0 11 12 6.1 1.2 0.0 MMMMMMM%.. 5.4 0.7 0.0 12 13 5.5 1.2 0.0 MMMMMM%.. 5.0 0.7 0.0 13 14 5.2 1.2 0.0 MMMMMM%. 4.8 0.7 0.0 14 15 5.1 1.2 0.0 MMMMMM.. 4.7 0.7 0.0 15 16 5.0 1.2 0.0 MMMMMM.. 4.6 0.7 0.0 16 17 4.8 1.2 0.0 MMMMM%. 4.4 0.7 0.0 17 18 4.6 1.2 0.0 MMMMM.. 4.2 0.7 0.0 18 19 4.4 1.2 0.0 MMMMM.. 4.1 0.7 0.0 19 20 4.2 1.2 0.0 MMMM%. 4.0 0.7 0.0 20 21 4.7 1.2 0.0 MMMMM.. 4.2 0.7 0.0 21 22 5.5 5.4 2.8 XMMM.. 4.9 3.1 2.3 22 23 5.8 7.0 3.5 AXMMP.. 5.2 4.2 2.8 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) 13-Nov-2026 BoM Space Weather Services, Sydney Australia +61-2-9213-8000