VEGAS Team Meeting

Attendees:

Marty, Dan, Arindam, Richard, Jason, Joe, Ray, Sam, Paul, Randy, Dave

Agenda:

1. Review status of UCB work
2. Review To Do List
3. Test Time
4. Other
   • Meeting time

Meeting notes:

• Status of UCB work
  • Vegas clone just up and running
    • UCB will try to replicate problem using GB bofs
    • looking at shift issue w/o being able to see these issues in the code
  • review of symptoms (common signal to all adc. inputs)
    • variations bank to bank not seeing variations over time
    • FPGA inputs match, outputs vary
      • variations: 10% typical, 20% worst case seen
      • look Gaussian by eye but fail normalization - Hong said the tests might be invalid
      • Could the power changes be a symptom of passband changes?
    • seems to be all the modes where FPGA is doing the measurements
    • crosses multiple FPGA designs
    • run linearity tests - needs a wide range - can be done in simulations
  • Tests:
    • noise - varying levels (+/- 5 db current GB capability) - UCB suggests more like 40dB
    • sine wave - look at form on output - GB to execute
  • GB will send current source files and bof files to UCB (Dave)
    • Dave should establish a Green Bank account - Jason to assist in registration
  • GB (Richard & Adam) to present data analysis at 4pm

1. Review To Do List
   • Insufficient time during meeting
2. Test Time
   • Tuesday (all day for VEGAS, not GBT)
     • All on simulator
   • Thursday (all day)
     • All on simulator
3. Other
   • Dan and Dave MacMahon have another meeting every week at 11::15 AM eastern Mondays that usually lasts about 15 minutes. With the amount of VEGAS work that is UCB responsibility, should we consider a meeting dedicated to the GB/UCB work?
     • Plan a meeting of a subset of participants just for the band to band problems