[Ips-hf-warning] IPS HF SWF COMMS WARNING

[rwc]

SUBJ: IPS HF RADIO COMMUNICATIONS WARNING 01/14
ISSUED AT 28/2336Z MARCH 2001
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

HF COMMS FADEOUTS EXPECTED DURING DAYLIGHT HOURS
FROM 29 MARCH 2001 TO 01 APRIL 2001
IF COMMS DIFFICULTIES EXPERIENCED TRY A HIGHER FREQUENCY BAND
-------------------------------------------------------------
             SOLAR ACTIVITY FORECAST       HF COMMS FADEOUTS             
29Mar-01Apr  moderate to high              Probable             

COMMENT: The HF spectrum may become ocassionally squeezed during 
the period 30-31 Mar, as lower MUFs are expected during this period
(following anticipated geomagnetic activity from recent coronal 
mass ejection events) and at the same time increased absorption from 
solar flare events may be experienced, reducing the usability of lower
HF channels.



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