[Ips-hf-warning] IPS HF COMMS WARNING
rwc
rwc at ips.gov.au
Tue Feb 21 11:36:15 EST 2006
SUBJ: IPS HF RADIO COMMUNICATIONS WARNING 06/03
ISSUED AT 21/0032Z FEBRUARY 2006
BY THE AUSTRALIAN SPACE FORECAST CENTRE.
SOUTHERN AUS/NZ MUFS DEPRESSED 15% AFTER LOCAL
DAWN THIS MORNING. LOWER THAN NORMAL MUFS FOR
SOUTHERN AUS/NZ REGION EXPECTED REST OF DAY.
DEPRESSIONS FOLLOWED MILD OVERNIGHT GEOMAGNETIC
ACTIVITY FROM CORONAL HOLE WIND STREAM.
NORTHERN AUS REGION MUFS NEAR NORMAL. HF
COMMUNICATORS WITHIN NORTHERN AUSTRALIA SHOULD
USE A T INDEX OF 15.
DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FOR 21 FEBRUARY 2006 SOUTHERN AUS/NZ REGION ONLY
IF COMMS DIFFICULTIES EXPERIENCED TRY A LOWER FREQUENCY BAND
_____________________________________________________________
HF COMMUNICATIONS FORECAST (SOUTHERN AUSTRALIAN/NEW ZEALAND REGION)
FREQUENCY BANDS
T-index MUFs 2 4 6 8 12 16 22 26
_____________________________________________________________
21 Feb -10 -15% 2 4 6 8 12 12 16 22
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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