[Ips-hf-warning] IPS HF COMMS WARNING

[rwc]

SUBJ: IPS HF RADIO COMMUNICATIONS WARNING 04/05
ISSUED AT 16/0331Z JANUARY 2004
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED FOR SOUTHERN REGIONS
FROM 16-18 JANUARY 2004 DUE TO ENHANCED GEOMAGNETIC ACTIVITY.

MUFs have been depressed 15-30% for southern regions so far
today, with further depressions expected at times for southern
regions for the next few days.

IF COMMS DIFFICULTIES EXPERIENCED TRY A LOWER FREQUENCY BAND
FOLLOW ON HF WARNING FROM HF WARNING: 04
_____________________________________________________________

SOLAR ACTIVITY FORECAST       HF COMMS FADEOUTS             
16 Jan:  low                  None expected        
17 Jan:  low                  None expected        
18 Jan:  low                  None expected        

HF COMMUNICATIONS FORECAST (AUSTRALIAN/NEW ZEALAND REGION)
                                   FREQUENCY BANDS  
       T-index  MUFs          2  4  6  8 12 16 22 26
_____________________________________________________________
16 Jan   25    -20%/normal    2  4  6  8  8 12 16 16 
17 Jan   35    -15%/normal    2  4  6  8 12 12 16 22 
18 Jan   45    -10%/normal    2  4  6  8 12 16 16 22 


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Haymarket NSW 1240  AUSTRALIA     | FTP: ftp://ftp.ips.gov.au 
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