• dewar  monitoring box
• labjack
  
• monitor program
  
• filter bank
• Patriot dual freq warm receiver:
• Patriot feed measurements
  
• 220309:130 Mhz sband filter s parameters
• 220311: sband spectra at output of postamp chassis after new sb filters installed.
• 220311: s-parameters for sband postamp chassis  after sb filters installed.
• 220322:sband cable loss lna to postamp chassis
• 221022:sband spectra at input to postamp chassis.
  
• wideband receiver
•  220624 testing the qrfh on the telescope with a warm receiver chain.
  
• hamdi's documentation(.pdf)
• edwards wrg vacuum gauge manual (.pdf)
• Helium line sensors:
• Setra Model 209
  
• Part number: 2094500PG2M2402
  
• Input Range: 0 to 500 PSI
  
• Output: 0.5 to 5.5V
  
• Scaling factor: (Vout - 0.5)*100 = Preassure(psi)
• AIN12 > hiPressure, AN13->low pressure (labjack analog inputs
• When the compressor is OFF then BOTH lines equalize to a pressure about 200PSI
• Receiver temperature
• jan23 at test range with original cal cables.
• 230331: at test range after changing cal cables
  
• Sparameters
  
• dewar calinp to dewar output
  
• 230210: in lab with hamdi's cal cables
• 230328: in lab after cal sma cables replaced with a stainless steel cable.
  
• filter bank
• fiberOptic chassis in pedestal
• includes cable dewar to filter box
  

 home_~phil