[Ips-hf-warning] IPS HF COMMS WARNING

[rwc]

SUBJ: IPS HF RADIO COMMUNICATIONS WARNING 01/83
ISSUED AT 24/2229Z DECEMBER 2001
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

UNEXPECTED GEOMAGNETIC ACTIVITY OBSERVED OVERNIGHT.

DEPRESSED HF PROPAGATION CONDITIONS NOW EXPECTED
FOR FIRST HALF 25 DECEMBER 2001 SOUTHERN REGION AUS/NZ ONLY.
IF COMMS DIFFICULTIES EXPERIENCED TRY A LOWER FREQUENCY BAND.
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SOLAR ACTIVITY FORECAST       HF COMMS FADEOUTS             
25 Dec:  Moderate             Possible             

HF COMMUNICATIONS FORECAST (SOUTHERN AUSTRALIAN/NEW ZEALAND REGION)
                                   FREQUENCY BANDS  
       T-index  MUFs          2  4  6  8 12 16 22 26
-------------------------------------------------------------
25 Dec   90    -15%           2  4  6  8 12 12 16 22 


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