Next Meeting Friday Oct 17th – Digital Amateur Television

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The next meeting of the Amateur Radio Experimenters Group Inc will be held on Friday October 17th at 7.30pm. Doors will open at 7.00pm. The venue will be the Fulham Community Centre, Phelps Court, Fulham.

Introducing Digital Amateur Television

The topic this evening will be an introduction to 445 MHz (70 cm band) Digital Amateur Television, presented by Steve VK5SFA. Steve will present his journey to establishing an ATV transmission capability, including the various challenges encountered along the way.

Steve will also discuss how to get involved in receiving ATV on the 70cm band, and if you bring along your DVB-T set top box he will help you leave with it programmed ready to receive the local Adelaide ATV operators. The usual retailers are still selling the Laser STB-9000 for about $40.00 which will directly receive 70cm ATV if you want to get on board.

Update: a copy of the Youtube presentation is now available here:

Homework

Below is a list of terms used in DVB-t2 television broadcasting.  I will not be going into any great detail about how DVB-t2 actually works.  It is a mature technology and there is plenty of information on the Internet.
Feel free to conduct your own research if interested.
  • DVB-t (Digital Video Broadcasting – Terrestrial)
  • Coded Orthogonal Frequency Division Multiplexing (COFDM)
  • QPSK (Quadrature Phase Shift Keying) 
  • QAM (Quadrature Amplitude Modulation)
  • MER (Modulation Error Ratio)
  • FEC (Forward Error Correction)
  • Guard Interval
  • Carriers (2K & 8K)
  • PID (Packet Identifier)
  • LCN (Logical Channel Numbers)