HRCircuits Research.

Wednesday, May 14, 2014

Time spent !

Posted by Akshay M. at 11:13 PM No comments:
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Time spent !

Posted by Akshay M. at 10:15 PM No comments:
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Note- while turning off...

Remove USB first. Then reduce voltage - else the currents increases for some reason !
Posted by Akshay M. at 10:09 PM No comments:
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ALL FILES DONE!!

Posted by Akshay M. at 10:07 PM No comments:
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Weird problem with bulk data transfer in mex



Solved using - don't know why - but do this - 

Don't directly pass in bulk look !! Pass it through an array!! 

Posted by Akshay M. at 9:23 PM No comments:
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Sunday, May 11, 2014

DAC done !!' For the new board !!

There are three scripts - m files - 

1. 

Just run the programNewDAC

2. 

Setup is seen as follows.

The dacs are on the other side ! 


Checking their voltage needs some finnese ! 

Posted by Akshay M. at 8:55 PM No comments:
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Adrf has I be programmed first !!

Adrf if left un programmed - has like 0.5 A of power consumption!! 
Posted by Akshay M. at 8:54 PM No comments:
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Blog Archive

  • ▼  2014 (136)
    • ▼  October (28)
      • At the meeting !
      • Software for constellations is 8000$ :0
      • Pro has average out feature !!
      • Channel 2 test !
      • Channel 1: Now doing digital modulation !!!
      • Capture !! Quadrature mixing !!
      • K - cables !
      • checking for chip programming !
      • Perfect pll locking shown !! Awesome :)
      • writing rf board dds ! Glitch
      • Redoing setup
      • adc rate discussion
      • going to the 5 th floor lab !!
      • Made it work so fast !!??
      • If you see the squiggly lines ...!
      • New adc board to play with !!! Cool :)
      • DAQ board working :) Screenshots from measurements
      • Great !working !!! Switched wrong !!
      • Mischief managed :)
      • mixer operation revisited :
      • Random - 30 dB gain
      • VGA 3 12 dB gain I channels
      • BIG BIG Tia mistake ! Picked 85 ohms input !! Load...
      • VGA 2 measurements :
      • Checking differential input to VGA 2
      • Mischief managed :)
      • VGA 1 measurements
      • Dc blocker to prevent spectrum analyzer from destr...
    • ►  September (13)
    • ►  May (32)
    • ►  April (31)
    • ►  March (32)
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