[Ips-hf-warning] IPS HF COMMS WARNING
rwc
rwc at ips.gov.au
Tue May 31 08:44:38 EST 2005
SUBJ: IPS HF RADIO COMMUNICATIONS WARNING 05/25
ISSUED AT 30/2240Z MAY 2005
BY THE AUSTRALIAN SPACE FORECAST CENTRE.
DEPRESSED AND DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FOR FIRST HALF OF 31 MAY 2005. SOUTHERN AUS/NZ REGION ONLY.
NORTHERN AUS REGION MUFS CURRENTLY NEAR TO ABOVE PREDICTED
MONTHLY VALUES. HF COMMUNICATORS NORTH OF SYDNEY SHOULD
USE A T INDEX OF 40.
IF COMMS DIFFICULTIES EXPERIENCED TRY A LOWER FREQUENCY BAND
FOLLOW ON HF WARNING FROM HF WARNING: 24
_____________________________________________________________
SOLAR ACTIVITY FORECAST HF COMMS FADEOUTS
31 May: low None expected
HF COMMUNICATIONS FORECAST (SOUTHERN AUSTRALIAN/NEW ZEALAND REGION)
FREQUENCY BANDS
T-index MUFs 2 4 6 8 12 16 22 26
_____________________________________________________________
31 May -10 20% 2 4 6 8 8 12 16 16
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