[Ips-hf-warning] IPS HF COMMS WARNING

[rwc]

SUBJ: IPS HF RADIO COMMUNICATIONS WARNING 03/46
ISSUED AT 17/0420Z JUNE 2003
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED FOR 17 JUNE 2003
FOR SOUTHERN REGIONS ONLY. MILD DEPRESSIONS UP TO 15% HAVE
BEEN OBSERVED FOR SOUTHERN REGIONS SO FAR TODAY AND ARE
EXPECTED AT TIMES FOR THE REMAINDER OF THE DAY.
IF COMMS DIFFICULTIES EXPERIENCED TRY A LOWER FREQUENCY BAND
_____________________________________________________________

SOLAR ACTIVITY FORECAST       HF COMMS FADEOUTS             
17 Jun:  moderate to high     Probable             

HF COMMUNICATIONS FORECAST (AUSTRALIAN/NEW ZEALAND REGION)
                                   FREQUENCY BANDS  
       T-index  MUFs          2  4  6  8 12 16 22 26
_____________________________________________________________
17 Jun   50    -15%/normal    2  4  6  8 12 12 16 22 


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