SWS GRAFEX HF FREQUENCY PREDICTIONS ADDRESS NO. 1234 =============================================================================== Circuit: Kununurra Perth Date: 8 November, 2026 T-index: 60 Bearings: 214 39 Distance: 2219 km First Mode |--------F r e q u e n c y (MHz)---------| Second Mode 1F 7-13 1E 0 1 5 10 15 20 25 30 35 40 2F 22-30 2E 6 UT OWF EMUF ALF |...|....| ....|....| ....|....| ....|....| OWF EMUF ALF UT 00 15.6 0.0 10.4 SSSX XXFFF%%%%. ... 9.4 12.2 6.3 00 01 16.9 0.0 11.1 ASSX XXXFFF%%%% ... 9.5 13.2 6.7 01 02 17.7 0.0 11.5 ASSS XXXFFFF%%% %.... 10.2 13.9 6.9 02 03 18.2 0.0 11.8 ASSS XXXXFFFF%% %%..... 10.9 14.3 7.0 03 04 18.9 0.0 11.8 ASSS SXXXFFFF%% %%%..... 11.3 14.5 7.0 04 05 19.3 0.0 11.7 ASSS SXXXFFFFF% %%%...... 11.5 14.4 7.0 05 06 18.6 0.0 11.4 ASSS SXXMFFFF%% %%%..... 11.4 13.9 6.8 06 07 17.7 0.0 10.9 ASSS XXXFFFF%%% %%..... 10.9 13.1 6.5 07 08 16.9 0.0 10.1 SSSS XMMFFF%%%% %..... 10.5 11.7 6.1 08 09 16.9 0.0 8.8 ASSXM MMMFFF%%%% %..... 10.7 9.6 5.5 09 10 15.1 0.0 6.1 SSMMMM MMMFF%%%%% ...... 10.2 0.0 4.3 10 11 13.5 0.0 0.0 XMMMMMMMMM MMF%%%%%%. ..... 9.5 1.8 0.0 11 12 12.3 0.0 0.0 XMMMMMMMMM MF%%%%%... ... 8.6 1.8 0.0 12 13 11.4 0.0 0.0 XMMMMMMMMM F%%%%%.... . 7.8 1.8 0.0 13 14 11.5 0.0 0.0 XMMMMMMMMF F%%%%..... 7.5 1.8 0.0 14 15 12.1 0.0 0.0 XMMMMMMMMF FF%%%%.... 7.6 1.8 0.0 15 16 12.2 0.0 0.0 XMMMMMMMMF FF%%%%.... 7.7 1.8 0.0 16 17 10.9 0.0 0.0 XMMMMMMMMF %%%%.... 7.2 1.8 0.0 17 18 9.4 0.0 0.0 XMMMMMMMF% %%%.... 6.8 1.8 0.0 18 19 8.3 0.0 0.0 XMMMMMMF%% %%.... 6.4 1.8 0.0 19 20 8.2 0.0 0.0 XMMMMMMF%% %..... 6.2 1.8 0.0 20 21 8.9 0.0 0.0 XMMMMMMM%% %%..... 6.6 1.8 0.0 21 22 12.4 0.0 7.4 ASSMMM FF%%%%%... . 8.4 7.8 4.6 22 23 14.9 0.0 9.3 ASSXX MFFF%%%%%. .. 9.0 10.6 5.7 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) 8-Nov-2026 BoM Space Weather Services, Sydney Australia +61-2-9213-8000