[Ips-hf-warning] IPS HF COMMS WARNING

[rwc]

SUBJ: IPS HF RADIO COMMUNICATIONS WARNING 03/25
ISSUED AT 31/2226Z MARCH 2003
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

DEPRESSED MUFS OBSERVED AFTER LOCAL DAWN THIS MORNING
IN SOUTHERN AUSTRLIA REGION. CHRISTCHURCH NZ 
AND NORTH AUS MUFS CURRENTLY NEAR NORMAL.

DEGRADED HF PROPAGATION CONDITIONS WITH LOWER THAN NORMAL
MUFS EXPECTED FOR SOUTHERN AUS REGION ONLY LOCAL DAY
01 APRIL 2003.

NORTHERN UAS REGION MUFS CURRENTLY ENHANCED 15% 
COMMUNICATORS IN THIS REGION SHOULD USE A T INDEX OF 
90.

IF COMMS DIFFICULTIES EXPERIENCED TRY A LOWER FREQUENCY BAND
_____________________________________________________________

SOLAR ACTIVITY FORECAST       HF COMMS FADEOUTS             
01 Apr:  low                  None expected        

HF COMMUNICATIONS FORECAST (SOUTHERN AUSTRALIAN REGION ONLY)
                                   FREQUENCY BANDS  
       T-index  MUFs          2  4  6  8 12 16 22 26
_____________________________________________________________
1 Apr    40     -15%          2  4  6  8  8 12 16 22 


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