[Ips-hf-warning] IPS HF COMMS WARNING

[Regional Warning Centre]

SUBJ: IPS HF RADIO COMMUNICATIONS WARNING 00/81
ISSUED AT 27/2259Z NOVEMBER 2000
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 28-30 NOVEMBER 2000
IF COMMS DIFFICULTIES EXPERIENCED TRY A LOWER FREQUENCY BAND
FOLLOW ON HF WARNING FROM HF WARNING: 80
-------------------------------------------------------------
SOLAR ACTIVITY FORECAST       HF COMMS FADEOUTS             
28 Nov:  moderate to high     Probable             
29 Nov:  moderate to high     Probable             
30 Nov:  moderate             Possible             

HF COMMUNICATIONS FORECAST (AUSTRALIAN/NEW ZEALAND REGION)
                                   FREQUENCY BANDS  
       T-index  MUFs          2  4  6  8 12 16 22 26
-------------------------------------------------------------
28 Nov    90     -12%         2  4  6  8 12 16 16 22 
29 Nov   100   normal         2  4  6  8 12 16 22 22 
30 Nov   120   normal         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/asfc
Haymarket NSW 1240  AUSTRALIA     | FTP: ftp://ftp.ips.gov.au/users/asfc/ 
tel: +61 2 9213 8010              | fax: +61 2 9213 8060