[Ips-hf-warning] IPS HF COMMS WARNING

[rwc]

SUBJ: IPS HF RADIO COMMUNICATIONS WARNING 02/71
ISSUED AT 21/0052Z NOVEMBER 2002
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

LEVELS OF MUF SUPPORT SINCE LOCAL DAWN
HAVE BEEN VARIABLE IN THE AUS/NZ REGION.
SOME SITES DEPRESSED BY UP TO 30% OTHERS
NEAR NORMAL.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FOR EARLY 21 NOVEMBER 2002 . HF CONDITIONS EXPECTED
TO IMPROVE AS DAY PROGRESSES.


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

HF COMMUNICATIONS FORECAST (AUSTRALIAN/NEW ZEALAND REGION)
                                   FREQUENCY BANDS  
       T-index  MUFs          2  4  6  8 12 16 22 26
-------------------------------------------------------------
21 Nov   70    -20%/normal    2  4  6  8  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