[Ips-hf-warning] IPS HF COMMS WARNING

[rwc]

SUBJ: IPS HF RADIO COMMUNICATIONS WARNING 01/57
ISSUED AT 12/2322Z OCTOBER 2001
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

DEPRESSED HF PROPAGATION CONDITIONS EXPECTED
FOR 13 OCTOBER 2001 SOUTHERN AUS/NZ REGION ONLY.
MUFS EXPECTED TO RECOVER AS DAY PROGRESSES.

NORTHERN AUS. REGION MUFS ARE EXPECTED TO REMAIN
NEAR TO 15% ABOVE NORMAL. HF COMMUNICATORS WITHIN
THIS REGION SHOULD USE A TINDEX OF 130.

IF COMMS DIFFICULTIES EXPERIENCED TRY A LOWER FREQUENCY BAND
FOLLOW ON HF WARNING FROM HF WARNING: 55
-------------------------------------------------------------
SOLAR ACTIVITY FORECAST       HF COMMS FADEOUTS             
13 Oct:  Moderate             Possible             

HF COMMUNICATIONS FORECAST (SOUTHERN AUSTRALIAN/NEW ZEALAND REGION)
                                   FREQUENCY BANDS  
       T-index  MUFs          2  4  6  8 12 16 22 26
-------------------------------------------------------------
13 Oct  100    -15%/Normal    2  4  6  8 12 12 16 22 


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