Continuum observations at 6cm
The same could be entered from the keyboard only:
START
> sic dir [observer.kont.6]
> @obseinp.pro
>cat1
>b6
POINTING, FOCUS, POINTING, MAP OF THE AMPL CALIBRATOR
>source 3c286 / p6 / stp / corr f f
>focus / corr * * f
>b6
>p6 / stp / corr f f / cal / stc
PONTING AND TARGET
>source 3c231.0 / p6 / stp / corr f f
>obsinp read ic2574 / stc
1. After the start of observations (cat1, b6) check diodes at 6cm receiver panel. They should shine according to the entry in the 6back.obs file:
P011 0
P021 5 : column 2, switch S5 on
P031 7 : column 3, switch S7 on
p041 57 : column 4, switches S5 and S7 on
2. Check phases on the polarimeter panel. Switch int/ext, on display upper: rectangle signal, below: should be stright line. Digital meters: numbers should be similar and changing a bit (real output from all polarimeter channels).
3. After mapping of the amplitude calibrator (3c286 above) check gain factors and polarymeter.