[Ips-hf-warning] IPS HF COMMS WARNING

[rwc]

SUBJ: IPS HF RADIO COMMUNICATIONS WARNING 06/04
ISSUED AT 15/0129Z APRIL 2006
BY THE AUSTRALIAN SPACE FORECAST CENTRE.

SOUTHERN AUS/NZ MUFS DEPRESSED 15% AFTER LOCAL DAWN THIS
MORNING. EXPECT VARIABLE PROPAGATION CONDITIONS NEXT TWO
DAYS S AUS/NZ/ANTARCTIC REGIONS DUE TO ELEVATED GEOMAGNETIC
ACTIVITY.

N AUS MUFS NORMAL TO ENHANCED. HF USERS N AUS REGION SHOULD
USE A T INDEX OF 30.

DEGRADED HF PROPAGATION CONDITIONS EXPECTED
FROM 15-16 APRIL 2006 S AUS/NZ/ANTARCTIC REGIONS ONLY.
IF COMMS DIFFICULTIES EXPERIENCED TRY A LOWER FREQUENCY BAND
_____________________________________________________________

HF COMMUNICATIONS FORECAST (AUSTRALIAN/NEW ZEALAND REGION)
                                   FREQUENCY BANDS  
       T-index  MUFs          2  4  6  8 12 16 22 26
_____________________________________________________________
15 Apr     0     -12%         2  4  6  8 12 16 16 22 
16 Apr     0     -12%         2  4  6  8 12 16 16 22 


IPS Radio and Space Services        email: asfc at ips.gov.au
PO Box 1386                         WWW: http://www.ips.gov.au
Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp.ips.gov.au 
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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