Patriot 12 meter telescope

Last Update: 01apr16

Links
History:
acceptance test
Measurements
Specs
System performance
The telescope model
Documentation

Pictures of the 12 meter system
    receiver chain

12meter control program


History: (top)


Measurements:




Specs:


sband
xband
date
notes
freqRange:
2.185 - 2.364 GHz
8.05 - 9.2 GHz

rf filters @12m feb16

SPD @ fiber
rcvr output
-81.5 dbm polA
-76.0 dbm polB
-76.4 dbm polA
-70.5 dbm polB
160328
  • 3Mhz rbw, average 100.
  • 1db extra pad in xband polB (10mar16)
  • switch tx,rx so each pair is same serial #
  • 5ft cable rcvr to specAna.
  •  .5db loss/ft at 8.6ghz
  • signal 2.5 db higher at xb at rcver.
  • polA has 5 to 6 db less power then polB

UDC output levels 500-1000 vlbi outputs: dbm/Hz
skyCfr (Ghz)
polA
polB


2.19
2.27
2.364
-94.1
-94.7
-97.2
-90.4
-88.7
-93.5
160331
udc atten was set to 15.5 db atten
8.1
8.6
9.1
-89.5
-89.9
-91.4
-85.1
-84.5
-85.3



Documentation: (top)





<- page up
 home_~phil