[Ips-hf-warning] IPS HF COMMS WARNING

[rwc]

SUBJ: IPS HF RADIO COMMUNICATIONS WARNING 01/03
ISSUED AT 01/0302Z FEBRUARY 2001
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED FOR 01 FEBRUARY 2001
FOLLOW ON HF WARNING FROM HF WARNING: 2

DEPRESSIONS OF 15-20% WERE OBSERVED FOLLOWING LOCAL DAWN ON
1 FEBRUARY IN ASSOCIATION WITH INCREASED GEOMAGNETIC ACTIVITY,
HOWEVER, MUF'S HAVE NOW RETURNED TO NORMAL AND ARE EXPECTED
TO BE MOSTLY NORMAL FOR THE REMAINDER OF THE UT DAY.
IF COMMS DIFFICULTIES EXPERIENCED TRY A LOWER FREQUENCY BAND
-------------------------------------------------------------
SOLAR ACTIVITY FORECAST       HF COMMS FADEOUTS             
01 Feb:  Low                  None expected        

HF COMMUNICATIONS FORECAST (AUSTRALIAN/NEW ZEALAND REGION)
                                   FREQUENCY BANDS  
       T-index  MUFs          2  4  6  8 12 16 22 26
-------------------------------------------------------------
1 Feb   100    -15%/normal    2  4  6  8 12 12 16 22 

IPS Radio and Space Services      | email: asfc at ips.gov.au
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