hf software receiver as base band fdm demux

1. Outline
• Measurement setup
Analog-
and digital hw
Signal processing-
and operating sw
Equipment
System
– FDM generator
– FM demodulator
– FDM de-multiplexer
de-
FDM de-multiplexing
deDr. Bertalan Eged, MD
• Modulated IF spectrum
• De-modulated video spectrum with FM
De• De-modulated video spectrum with AM
De-
Sagax Communication Ltd., 1096 Budapest, Haller u. 11-13. Hungary
Ltd.,
Budapest,
11-
www.sagax.hu
www.sagax.hu
Measurement setup
IF signal
2
FDM generator control panel
Video signal
SGR-2500
SID-500
SRM-3100
SRM-3100
FDM generator
FM demodulator
FDM de-multiplexer
CH1-16/32
SRS-3000
Spectrum analyzer/
Panorama receiver
www.sagax.hu
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www.sagax.hu
FM demodulator control panel
4
FDM de-multiplexer
deCH frequency
setup
IF frequency
setup
CH output
setup
(*.WAV file)
USB/LSB
setup
IF bandwidth
setup
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IF inversion
setup
5
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2. FDM de-multiplexer
de-
IF spectrum
IF panorama
window
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IF spectrum
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IF spectrum
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IF spectrum
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IF spectrum
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3. Video spectrum (12-60KHz)
(12-
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Video spectrum (60-108KHz)
(60-
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Video spectrum (108-156KHz)
(108-
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Video spectrum (156-204KHz)
(156-
15
Video spectrum (204-252KHz)
(204-
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FDM multiplexed channels with AM
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4. Video spectrum
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Video spectrum
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Video spectrum
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Video spectrum
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Video spectrum
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Video spectrum
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5. Video spectrum
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Video spectrum
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Video spectrum
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Video spectrum
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Video spectrum
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