31jul14 video camera in screen room

   Luis measured the emissions of the video camera on 31jul14 in the screen room..

The setup was:

• Agilent E4445A spectrum analyzer:
• average 20 sweeps
• 8192 points/spectra
• 6db attenuation , preamp on
• 100 MHz span, 12.5 Khz/rbw. covering 0 to 3000 MHz in 30 spectra
• 904 Efield probe with a 15 foot coax cable.
• activity
• data was taken with power supply and camera off
• data was taken with the probe next to the camera screen, recording. the power supply was about 4 feet away
• data was taken with the probe next to the power supply. the camera was on and recording about 4 feet from the probe.
  

The plots:

    The plots show the emissions from the devices.

• The first page shows plots of 0-1000 MHz, 1000-2000MHz and 2000-3000MHz
• The 2nd page shows some blowups around some of our receiver bands:
• 300-500 MHz (327,430)
• 1350-1550 MHz (lbw)
• 2000-3000 MHz (lbw)
  
• Emissions with the camera and power supply off. (.ps) (.pdf)
• This shows the noise in the room with the camera and power supply off.
  
• The rfi comes from: ethernet switch, spectrum analyzer
• Emissions with camera and power supply on (.ps) (.pdf)
• this has the camera on and recording. the power supply is also on
• the probe is between camera screen and body. The power supply is about 4 feet from the probe.
  
• Emissions from the power supply (.ps) (.pdf)
• the probe is next to the power supply. The camera is about 4 feet from the probe, on and recording.
  
• 
  

Summary:

processing: x101/rfi/miscdevice/videocam_140731/dovideocam.pro

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