[Ips-hf-warning] IPS HF COMMS WARNING

[rwc]

SUBJ: IPS HF RADIO COMMUNICATIONS WARNING 03/30
ISSUED AT 26/0138Z APRIL 2003
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 26-28 APRIL 2003 DUE TO AN EXPECTED
CORONAL HOLE INDUCED ENHANCEMENT IN GEOMAGNETIC 
ACTIVITY DURING THIS PERIOD.

IF COMMS DIFFICULTIES EXPERIENCED TRY A LOWER FREQUENCY BAND
_____________________________________________________________

SOLAR ACTIVITY FORECAST       HF COMMS FADEOUTS             
26 Apr:  Low to moderate      Possible             
27 Apr:  Low to moderate      Possible             
28 Apr:  Low to moderate      Possible             

HF COMMUNICATIONS FORECAST (AUSTRALIAN/NEW ZEALAND REGION)
                                   FREQUENCY BANDS  
       T-index  MUFs          2  4  6  8 12 16 22 26
_____________________________________________________________
26 Apr    80   -5%/normal     2  4  6  8 12 16 22 26 
27 Apr    70   -5 to -10%     2  4  6  8 12 16 22 26 
28 Apr    73   -5 to -10%     2  4  6  8 12 16 22 26 


IPS Radio and Space Services      | email: asfc at ips.gov.au
PO Box 1386                       | WWW: http://www.ips.gov.au
Haymarket NSW 1240  AUSTRALIA     | FTP: ftp://ftp.ips.gov.au 
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