Operator`s manual

1.3.7 Antenna Drive/Motion Status Display
This box, at the upper left of the control
console display, (Figure-9) shows the
station name, latitude and longitude as read
from the srt.cat file. The second line lists
the current antenna drive status, such as,
moving, simulate, stopped …
(Figure-9, Motion Status Display)
1.4 Manual Command Entry
Most users will start SRT observations by entering text commands into the text box at the bottom
of the control console. As explained in Section 1.3, most of the button actions can be duplicated
with command lines or must be supplemented with manual command entries.
Example:
The user may want to conduct a simple test observation of hydrogen along the galactic equator.
The required steps are:
1. Move the SRT to the intended source.
2. Calibrate.
(The calibration can be done with the hydrogen frequency off-source (preferred) or, a
non-hydrogen frequency on-source)
3. Set the observing frequency and scan width (or observing mode for digital).
4. Decide on a suitable integration time.
Manual commands (slow method!) (Analog Commands in Red)
1. Click on the desired source.
2. 1419.0 (1419 1) (non-hydrogen frequency for cal)
3. Cal or Vane (begins noise/vane calibration)
5. 1420.4 4 (1420.4 35) (set observing frequency)
Since the hydrogen line will be about 500KHz wide,
The 3 x 500MHz digital mode 4 is needed to display the hydrogen line with the
digital receiver (Analog - 35 bins times the 40 KHz default bin size should be
enough to display the spectra correctly)