HF Propagation Simulation: Variation of Time on all QRP Frequencies

In this post I show some video results of my Voacap simulations for HF propagation: the time has been varied (0-23h).

Simulation Parameters

  • Antenna: isotrope
  • Mode: cw (required SNR for circuit reliability calculation: 24 dB)
  • Power: 50W
  • Transmitter location: JO40DA
  • Month: July
  • SSN: 72.8
  • Frequencies: QRP frequencies on all ham bands…

3.6 MHz

 

[youtube=http://www.youtube.com/watch?v=VE9f9tCEhJo]

SNR (dB)

 

[youtube=http://www.youtube.com/watch?v=TcvBTk8H5N0]

 

Circuit Reliability (%)

 

7.0 MHz

[youtube=http://www.youtube.com/watch?v=ncdj512Ll64]

SNR (dB)

 

 

[youtube=http://www.youtube.com/watch?v=LR2PvUGWmh4]

Circuit Reliability (%)

 

10.1 MHz

[youtube=http://www.youtube.com/watch?v=IBq5qYqTqs0]

SNR (dB)

 

 

[youtube=http://www.youtube.com/watch?v=yciGBC-NvrA]

Circuit Reliability (%)

 

14.1 MHz

[youtube=http://www.youtube.com/watch?v=qYQDsBteJ5s]

SNR (dB)

 

 

[youtube=http://www.youtube.com/watch?v=q-tZ9JWiED8]

Circuit Reliability (%)

 

 

18.1 MHz

[youtube=http://www.youtube.com/watch?v=vSVJ0-XMG5c]

SNR (dB)

 

 

[youtube=http://www.youtube.com/watch?v=5ZjK738oIkc]

Circuit Reliability (%)

 

21.1 MHz

[youtube=http://www.youtube.com/watch?v=r7pRjKjVHHc]

SNR (dB)

 

 

[youtube=http://www.youtube.com/watch?v=1N-eqBr1TKQ]

Circuit Reliability (%)

 

24.1 MHz

[youtube=http://www.youtube.com/watch?v=g4fxokwYYb0]

SNR (dB)

 

 

[http://www.youtube.com/watch?v=jYMe1QQvQDw]

Circuit Reliability (%)

 

28.1 MHz

[http://www.youtube.com/watch?v=AwcBFUly8lM]

SNR (dB)

 

 

[youtube=http://www.youtube.com/watch?v=bkujdUAwUqg]

Circuit Reliability (%)