Radar specs:

• The specs were read off of the oscilloscope and the spectral plots
• pulse length (about .2 usecs)
• ipp (about 500 usecs)
• center freq: 9400 MHz
• bandwidth: about 7 MHz.
• The radar manual was later found. It showed 3 different allowable setups:
• .08 usec pulse
  
• .16 usec pulse (need to check the manual again).
  
• .3 usec pulse 

History:

• 21may13: did test with lidar radar. Later found that the horn was not mounted correctly to the transceiver. So the output power was probably a lot less than it should have been. In the dome denis had measured -40dbm after the postamps. The power at the feed was probably 60db less than that.
  

21may13: Turning the radar on and off.  (top)

• The data was taken with the mock spectrometer. about 20 secs on and 20 secs off.
  
• Black is radar off, red is radar on.
• Top: 172 MHz centered at 9370.
• the radar is centered at 9400 MHz
• it is about 7 MHz wide
• Bottom: a blowup in frequency around the radar

• The dashed lines show when the radar was turned on and off (see 9375 image).
  

21may13:Azswing with the radar on (top)

• za-18, az = 290 to 650 degrees at .4 degs/sec.
• mock spectrometer covering 9 to 10 Ghz, 172 MHz bw, 8192 channels in each of 7 boxes. .1 sec sampling.

• The bandpass was removed by fitting a 31 order harmonic to the median of the swing.

The next plots show the azimuth dependence for various birdies (.ps) (.pdf):

• Page 1 has the strong birdies
• the top two sets are the radar from 9556 to 9638 MHz
• the lidar radar is 9390 to 9410. It is other rfi mixed in with it.
• Page 2 had the weaker birdies.
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