Sun - Moon & Other NOISE Sources
Sun

Measured Sun Noise  - compare Cold sky noise

1296 MHz - 10m dish - OK1DFC septum with OM6AA choke - VLNA G4DDK 0,16dB N/F

432 MHz - 10m dish - loop feed - VLNA WA2ODO 0,2 dB N/F
Date QRG MHz Cold Sky dB Sun dB Noise in dB
23/03/2012 - SFI 102 432 -72,8 -52,8 20
18/11/2011 - SFI 150 1296 -60,6 -38,5 22,1
Moon

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Measured Ground noise - compare Cold sky noise

1296 MHz - 10m dish - OK1DFC septum with OM6AA choke - VLNA G4DDK 0,16dB N/F

432 MHz - 10m dish - loop feed - VLNA WA2ODO 0,2 dB N/F
Date QRG MHz Cold Sky dB Moon dB Noise in dB
- 432 - - -
30/05/2011 1296 -59,4 -58,4 1
The Earth - Ground noise

Measured Ground noise - compare Cold sky noise

1296 MHz - 10m dish - OK1DFC septum with OM6AA choke - VLNA G4DDK 0,16dB N/F

432 MHz - 10m dish - loop feed - VLNA OK1DFC 0,34dB N/F
Date QRG MHz Cold Sky dB Ground dB Noise in dB
- 432 - - -
13/03/2012 1296 -63,7 -58,9 4,8
Cygnus nebula

Measured Cygnus nebula noise

1296 MHz - 10m dish - OK1DFC septum with OM6AA choke - VLNA G4DDK 0,16dB N/F

432 MHz - 10m dish - loop feed - VLNA WA2ODO 0,2 dB N/F
Date QRG MHz Cold Sky dB Cygnus dB Noise in dB
0 432 0 0 0
02/12/2011 1296 61,6 59,5 2,1

Taurus - Crab nebula

Measured Crab nebula noise

1296 MHz - 10m dish - OK1DFC septum with OM6AA choke - VLNA G4DDK 0,16dB N/F

432 MHz - 10m dish - loop feed - VLNA OK1DFC 0,34dB N/F *

432 MHz - 10m dish - loop feed - VLNA WA2ODO 0,2 dB N/F
Date QRG MHz Cold Sky dB Taurus dB Noise in dB
21/12/2011 * 432 68,4 66,9 1,5
1296 - - -

Cassiopeia

Measured Cassiopeia - Andromeda nebula

1296 MHz - 10m dish - OK1DFC septum with OM6AA choke - VLNA G4DDK 0,16dB N/F

432 MHz - 10m dish - loop feed - VLNA WA2ODO 0,2 dB N/F
Date QRG MHz Cold Sky dB Casiopea dB Noise in dB
432 - - -
13/03/2012 1296 63,73 62,87 0,85
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