[Ips-hf-warning] IPS HF COMMS WARNING

[rwc]

SUBJ: IPS HF RADIO COMMUNICATIONS WARNING 07/02
ISSUED AT 18/0432Z JANUARY 2007
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

SOUTHERN AUS/NZ REGION MUFS HAVE BECOME DEPRESSED AFTER
03UT TODAY BY UP TO 20 TO 30%. SOUTHERN REGION MUFS NOW EXPECTED
TO REMAIN DEPRESSED FOR REMAINDER OF TODAY. ALSO, MUFS AT THE ISLAND
OF NIUE ARE DEPRESSED 30% AT PRESENT.

NORTHERN AUSTRALIAN REGION MUFS (WITH THE EXCEPTION OF THE ISLAND
OF NIUE) HAVE REMAINED NEAR TO 15% ABOVE IPS PREDICTED MONTHLY VALUES.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED SOUTHERN AUS/NZ ONLY
FOR REMAINDER 18 JANUARY 2007
IF COMMS DIFFICULTIES EXPERIENCED TRY A LOWER FREQUENCY BAND
_____________________________________________________________

HF COMMUNICATIONS FORECAST (SOUTHERN AUSTRALIAN/NEW ZEALAND REGION)
                                   FREQUENCY BANDS  
       T-index  MUFs          2  4  6  8 12 16 22 26
_____________________________________________________________
18 Jan  -20    -20%           2  4  6  8  8 12 16 16 


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