[Ips-hf-warning] IPS HF COMMS WARNING

rwc rwc at ips.gov.au
Fri May 20 16:03:22 EST 2005


SUBJ: IPS PRELIMINARY HF RADIO COMMUNICATIONS WARNING 05/23
ISSUED AT 20/0559Z MAY 2005
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

Minor to moderate degradations in HF conditions 
and depressions in MUFs are probable on mid and high
latitude locations on 20 May due to an expected rise
in geomagnetic activity on this day. 

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 20 MAY 2005
IF COMMS DIFFICULTIES EXPERIENCED TRY A LOWER FREQUENCY BAND
A MORE DETAILED HF WARNING WILL FOLLOW IF DEPRESSIONS EVENTUATE.
_____________________________________________________________



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