[Ips-hf-warning] IPS HF COMMS WARNING issued 0531 UT on 16 Feb 2012

[rwc]

SUBJ: IPS HF RADIO COMMUNICATIONS WARNING 12/10
ISSUED AT 16/0530Z FEBRUARY 2012
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

Further to previous HF warning 12/09, ionospheric support for 
HF has degraded significantly more than anticipated. MUFs are 
depressed by 30% or more across the Australian region. Significant 
blanketing E is still being observed at Sydney, Canberra and 
Hobart. Depressed conditions are likely to continue for the next 
24-48 hours.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 16-17 FEBRUARY 2012
IF COMMS DIFFICULTIES EXPERIENCED TRY A LOWER FREQUENCY BAND
_____________________________________________________________

HF COMMUNICATIONS FORECAST (AUSTRALIAN/NEW ZEALAND REGION)
                                   FREQUENCY BANDS
       T-index      MUFs        2  4  6  8 12 16 22 26
_____________________________________________________________
16 Feb:    4          -30%      2  4  6  6  8 12 16 16
17 Feb:   29          -20%      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 

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