|
CRITICAL F2 LAYER FREQUENCY MAP (GET CHART ONLY) (N. AMERICA) (EUROPE)
MAX HEIGHT OF F2 LAYER (GET CHART ONLY)
E LAYER FREQUENCY MAP (GET CHART ONLY)
INTRODUCTION TO HF RADIO PROPAGATION (PDF 159K 23 Pgs.)
RECENT SOLAR ACTIVITY CHART CYCLE 23 GETS OFF TO A SLOW START!
INDEX OF SOLAR SURFACE IMAGES REAL TIME SOLAR IMAGE HI-RES VIEW from SPACE
AURORA BOREALIS HOME PAGE or CURRENT AURORA MAP (Northern) (Southern)
MOST RECENT FORECAST FROM W1AW or 27 DAY FORCAST (SOLAR INDEX)
MORE INFO ON SOLAR ACTIVITY from the Australian Space Weather Agency