Main Page Quad Info More Quad Info QSL Designs QSL Gallery Dx Audio Clips Dxoz Interview Pics & Info New Year Storm Links Guestbook
Pics and General Information
  This page is for info, photos etc. as it/they come to hand.  
    Digital Voice over HF
    FreeDV is a Graphic User Interface application for Windows and Linux that allows any SSB radio to be used for low bit rate digital voice. Speech is compressed down to 1400 bit/s then modulated onto a 1100 Hz wide QPSK signal which is sent to the Mic input of a SSB radio.
   On receive, the signal is received by the SSB radio, then demodulated and decoded by FreeDV. The signal is unintelligible to those receivers that do not have the application. Compare this to D.A.B. (Digital Audio Broadcasting) but with a lower bitrate.
       Before/After Photo comparison. JavaScript using jQuery.  
  Andy's QTH on Lihir Island Papua New Guinea    (Screenshot from  
  Long Path from northern Australia to Brazil  (screenshot from HFProp G4ILO)  
  Great Circle Map centred on London. Heading 78deg to Melbourne Australia  
  from the past ...  
Samples of life in our backyard! (own pics)
  Back yard Pic#1 Double Barred Finch  
  Back yard Pic#2 Orange Collared Lorikeet  
    Back yard Pic #3 Torres Strait Pigeon on nest  
    Back yard Pic #4 Green Tree Frog   
  Then and now ... Pics I have taken years ago!  
  #1 Renmark Ave Renmark South Australia early 1960's  
  Same avenue 2011 courtesy Google Maps  
  #2 Main St Kapunda South Australia early 1960's  
  Same street 2010 courtesy Google Maps  
  #3 Commercial Rd Port Augusta South Australia 1967  
  same road 2010 courtesy Google maps  
  drawn 1971?  
  drawn 1971?  
  Main Page Quad Info More Quad Info QSL Designs QSL Gallery Dx Audio Clips Dxoz Interview Pics & Info New Year Storm Links Guestbook  

"Humans are powerful spiritual beings meant to create good on the earth.
This good isn't usually accomplished in bold actions, but in singular acts of kindness between people.
 It's the little things that count, because they are more spontaneous and show who you truly are."
Page added 8th January 2013                            latest update edit 21st Dec 2014, 18th Oct 2014