[Ips-hf-warning] IPS HF COMMS WARNING

[rwc]

SUBJ: IPS HF RADIO COMMUNICATIONS WARNING 02/06
ISSUED AT 17/2320Z FEBRUARY 2002
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

NORTHERN AUS/NZ REGION MUFS ENHANCED 15% AFTER LOCAL DAWN.
COMMUNICATORS WITHIN THIS REGION SHOULD USE A T OF 140.

SOUTHERN AUS/NZ REGION MUFS DEPRESSED 15% AFTER LOCAL DAWN
FOLLWOING MILD CME INDUCED GEOMAGNETIC ACTIVITY.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED FOR FIRST HALF 
OF 18 FEBRUARY 2002 SOUTHERN REGION AUS/NZ ONLY. 

IF COMMS DIFFICULTIES EXPERIENCED TRY A LOWER FREQUENCY BAND
FOLLOW ON HF WARNING FROM HF WARNING: 05
-------------------------------------------------------------
SOLAR ACTIVITY FORECAST       HF COMMS FADEOUTS             
18 Feb:  low to 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
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18 Feb   90    -15%           2  4  6  8 12 12 16 22 

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