[Ips-hf-warning] IPS HF COMMS WARNING

[rwc]

SUBJ: IPS HF RADIO COMMUNICATIONS WARNING 01/13
ISSUED AT 28/0353Z MARCH 2001
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 28-29 MARCH 2001
IF COMMS DIFFICULTIES EXPERIENCED TRY A LOWER FREQUENCY BAND

HF conditions may be degraded 15-30% at times for 28 March and
5-15% at times for 29 March due to recent geomagnetic activity.
-------------------------------------------------------------
SOLAR ACTIVITY FORECAST       HF COMMS FADEOUTS             
28 Mar:  moderate to high     Probable             
29 Mar:  moderate to high     Probable

HF COMMUNICATIONS FORECAST (AUSTRALIAN/NEW ZEALAND REGION)
                                   FREQUENCY BANDS  
       T-index  MUFs          2  4  6  8 12 16 22 26
-------------------------------------------------------------
28 Mar   90    -20%/normal    2  4  6  8  8 12 16 16 
29 Mar  110    -10%/normal    2  4  6  8 12 16 16 22 

IPS Radio and Space Services      | email: asfc at ips.gov.au
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