[Ips-hf-warning] IPS HF COMMS WARNING

rwc rwc at ips.gov.au
Sat Aug 18 10:13:14 EST 2001


SUBJ: IPS HF RADIO COMMUNICATIONS WARNING 01/40
ISSUED AT 18/0010Z AUGUST 2001
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FOR 18 AUGUST 2001 FOLLOWING OVERNIGHT GEOMAGNETIC
ACTIVITY. 

IF COMMS DIFFICULTIES EXPERIENCED TRY A LOWER FREQUENCY BAND
FOLLOW ON HF WARNING FROM HF WARNING: 39
-------------------------------------------------------------
SOLAR ACTIVITY FORECAST       HF COMMS FADEOUTS             
18 Aug:  low                  None expected        

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



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