[Ips-hf-warning] IPS HF COMMS WARNING

[rwc]

SUBJ: IPS HF RADIO COMMUNICATIONS WARNING 03/41
ISSUED AT 30/2238Z MAY 2003
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FOR FIRST HALF OF 31 MAY 2003 SOUTHERN AUS/NZ REGION ONLY.
NORTHERN AUS REGION MUFS CURRENTLY NEAR PREDICTED MONTHLY
VALUES AND HF COMMUNICATORS IN THIS REGION SHOULD USE
A T INDEX OF 75.

IF COMMS DIFFICULTIES EXPERIENCED TRY A LOWER FREQUENCY BAND
_____________________________________________________________

SOLAR ACTIVITY FORECAST       HF COMMS FADEOUTS             
31 May:  Moderate             Possible             

HF COMMUNICATIONS FORECAST (SOUTHERN AUSTRALIAN/NEW ZEALAND REGION)
SOUTHERN AUS/NZ ONLY               FREQUENCY BANDS  
       T-index  MUFs          2  4  6  8 12 16 22 26
_____________________________________________________________
31 May   45    -15%           2  4  6  8 12 12 16 22 


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