Start the observations

$ : commands to insert in a shell

> : commands to insert in the operatorInput panel

:check on the monitor

1. Insert your project number :

   > project=[projectID] Fig. 21,

2. Initial setup :

   > antennaReset Fig.37

   > setupLLP Fig.19 Fig.30

3. Select the receiver mode :

   > receiversMode=[code] where [code] can be XXC1, XXC2, XXC3, XXC4, XXC5, XXL1, XXL2, XXL3, XXL4, XXL5.

   • C is for Circular, L for Linear polarization ;
   • 1 : all band, 1300-1800 MHz (no filter) ;
   • 2 : 1320-1780 MHz ;
   • 3 : 1350-1450 MHz ;
   • 4 : 1300-1800 MHz (band-pass) ;
   • 5 : 1625-1715 MHz.

4. Select the active surface shape (Parabolic for L-band observations) :

   > asSetup=P Fig.6

5. Insert the Local Oscillator value in MHz :

   > setLO=[freq] Fig.19

6. Select the Total Power backend :

   > chooseBackend=BACKENDS/TotalPower Fig.21

7. Insert the bandwidth for the focus selector (always 2000 MHz in L-band) and choose the sample rate (in MHz) :

   > setSection=0,*,2000.000000,*,*,[sampleRate],* Fig.13

   > setSection=1,*,2000.000000,*,*,[sampleRate],* Fig.13

8. Put the antenna at 45 deg of elevation and attenuate the signal in order to obtain values between 750 and 1100 counts (linear range of the backend) :

   > goTo=*,45d Fig.15

   > getTpi

   > setAttenuation=0,[att] with [att] between 0 and 15 dB Fig.13

   > setAttenuation=1,[att] with [att] between 0 and 15 dB Fig.13

   > getTpi

9. Check the tsys (typical values 25-30 K)

   > tsys Fig.13

10. Begin the schedule by indicating the start scan [N] or subscan [N_n] in the SCD file :

    > startSchedule=[schedulename].scd,[N] Fig.21