[Ips-hf-warning] IPS HF COMMS WARNING

rwc rwc at ips.gov.au
Tue Oct 15 11:51:33 EST 2002


SUBJ: IPS HF RADIO COMMUNICATIONS WARNING 02/58
ISSUED AT 15/0137Z OCTOBER 2002
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FOR 15 OCTOBER 2002

Degraded HF propagation conditions observed for Southern 
Australian/NZ regions following an overnight enhancement 
in solar X-ray flux. Conditions are expected to improve 
later today as X-ray flux levels continue to decline. 

IF COMMS DIFFICULTIES EXPERIENCED TRY A LOWER FREQUENCY BAND
-------------------------------------------------------------
SOLAR ACTIVITY FORECAST       HF COMMS FADEOUTS             
15 Oct:  low to moderate      Possible             

HF COMMUNICATIONS FORECAST (S. AUSTRALIAN/NEW ZEALAND REGION)
                                   FREQUENCY BANDS  
       T-index  MUFs          2  4  6  8 12 16 22 26
-------------------------------------------------------------
15 Oct   19    -30%           2  4  6  6  8 12 16 16 

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 
tel: +61 2 9213 8010              | fax: +61 2 9213 8060 



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