[Ips-hf-warning] IPS HF COMMS WARNING

[rwc]

SUBJ: IPS HF RADIO COMMUNICATIONS WARNING 03/22
ISSUED AT 18/2312Z MARCH 2003
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

LOWER THAN NORMAL MUFS ARE EXPECTED FOR SOUTHERN
AUS/NZ REGION OVER NEXT TWO DAYS. NORTHERN AUS
REGION MUFS EXPECTED TO REMAIN NEAR TO 15% ABOVE
NORMAL HF COMMUNICATORS IN THIS REGION SHOULD USE
A TINDEX OF 120.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 19-20 MARCH 2003.

IF COMMS DIFFICULTIES EXPERIENCED TRY A LOWER FREQUENCY BAND
FOLLOW ON HF WARNING FROM HF WARNING: ??
_____________________________________________________________

SOLAR ACTIVITY FORECAST                   HF COMMS FADEOUTS             
19 Mar:  moderate, chance high             Probable             
20 Mar:  moderate, chance high             Probable             

HF COMMUNICATIONS FORECAST (AUSTRALIAN/NEW ZEALAND REGION)
                                   FREQUENCY BANDS  
       T-index  MUFs          2  4  6  8 12 16 22 26
_____________________________________________________________
19 Mar   70    -15%           2  4  6  8 12 12 16 22 
20 Mar   70    -15%           2  4  6  8 12 12 16 22 


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