/xw
sel 1,2,3,4,5,6,7,8 selects signals to display (8 graphs) sel 1+2, 3+4, 5+6, 7+8 4 graphs/2 signals/graph sel * as above sel 1+2+3+4+5+6+7+8 all spectra on one page sel aa all a pols sel bb all b pols l displays lags a displays amplitudes (autoscaled) a ymin ymax scales y-axis channels xmin xmax scales xaxis h help x toggles display between frequency and channels write dumps a postscript file to COR$LASER:MDB.PS on ARTHUR write colour dumps a colour postscript file to COR$LASER:MDB.CPS on ARTHUR redraw refreshes scren save Saves current frequency spectrum amplitude or average - if enabled - as the reference. gif, nogif Writes a gif file "spd.gif", continuously updating. "nogif" switches back to initially selected pgplot device. quit p frequency spectrum phase r frequency spectrum real part i frequency spectrum imaginary part d frequency spectrum difference from previously stored reference. q frequency spectrum quotient with previously stored reference.
/xw
sel 1,2,3,4 selects all the traces, calon, caloff left and right pol for the first beam sel 1-2,3-4,5-6 selects the calon-caloff differences. sca autoscales y-axis sca y1 y2 fixes yscale write dumps a postscript file to COR$LASER:MDB.PS on ARTHUR write colour dumps a colour postscript file to COR$LASER:MDB.CPS on ARTHUR file dumps a data file COR$LASER:JB_MBD.DAT redraw refreshes screen quit
Put a backup tape in the Exabyte tape drive on top of the VAX cabinet in the observing room. (It can be a new tape or a tape with some data already on it). Put the tape drive into High Density mode (push the button if HD is unlit), compression isn't much use on binary data, so don't use this (though it won't matter much if you forget).
At the VAX prompt type TAPEBACKUP, and follow the questions. Here's a sample dialog.
Multibeam data backup - excluding drift files Enter Tape number eg 1059 : 1128 Is this a NEW TAPE? y INITIALISING TAPE MB1128 THIS WILL REMOVE ANY EXISITING DATA ON TAPE OK? y INITIALISING TAPE MB1128 ....This may take a few minutes.... Enter day to backup as YY-MM-DD 02-12-27 Backing up 02-12-27*.MBF; to saveset 021227 at start of NEW tape MB1128 Continue? y Mounting tape... Backing up data Add another day to this tape? : n Dismount tape : y Dismounting and spitting out tape..... Do you want to delete 00-06-21*.MBF; :n (or yes)If the tape already contains data, answer N to the new tape question, and the data will be appended to the end of the tape. (Don't worry about the initial tape rewind, it needs to get it's bearings, and should then start FF to the end of tape.
Put a backup tape in the Exabyte tape drive on top of the VAX cabinet in the observing room. (It can be a new tape or a tape with some data already on it). Put the tape drive into High Density mode (push the button if HD is unlit), compression isn't much use on binary data, so don't use this (though it won't matter much if you forget).
At the VAX prompt type DRIFTBACKUP, and follow the questions. Here's a sample dialog.
Multibeam drift data backup Enter Tape number eg 1059 : 1072 Is this a NEW TAPE? n Enter day to backup as YY-MM-DD 00-06-21 Backing up 00-06-21*DRIFT*.MBF; to saveset 000621 at end of data on tape DR1072 Continue? Y Mounting tape... Backing up data Add another day to this tape? n Type dismount $exabyte to remove tape from driveIf the tape is new, answer Y to the new tape question, and the tape will be initialised (wiping any existing files), before data is written to the tape (you get asked to confirm this).
This is a standalone version of MBCOR which is useful for testing. It does not need multi/tkmulti. It does not control the telescope. It does not produce MBF files. It does not make use of calibration data.
JDCOR is run on the VAX, and started in exactly the same way.
If MBcor is already running, just stop it (stop the scanning
using tkmulit, then type EXIT in the MBCOR display window).
To start JDCOR, type JDCOR at the prompt left after MBCOR exited.
(multi/tkmulti can be left running).
To start JDCOR from scratch:
On an X-windows machine, start a Xsession on the computer of
your choice.
If necessary, allow access to your computer
by ARTHUR, (xhost +arthur).
Telnet to Arthur and Login as MULTI.
Set Arthur to produce output on your screen
as follows:
xdisplay xxxx where xxx is the name of your unix box. If this doesn't work try....
Create 3 DECTerms as follows
CREATE/TERM
CREATE/TERM
CREATE/TERM
On a DECTERM window start the correlator test driver JDCOR
ART$ START_WINDOWS
ART$ JDCOR
The following commands are accepted by JDCOR