TO START THE RECORDING FROM DAS15M PC.
ssh -Y das@192.168.60.31
das.15m

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killdas  # kills all prog and clears shade mem. This is optional script. if
'backend.sh' started it first call this script to kill all previous programs.
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# To start all backend related programs
backend.sh 

// cd /data/das/log 
// check or view '<Latest date_time>.beclient file for e.g. 22Feb1227.beclient
// In this file all automatic init, initproject and data acqusition command
// status and responses from the digital back-end (Roach resposnses as well)
// logged.
// Check that after creating the shared memory acq_roach.py, client program
// connects to the shared memory i.e. expected messages are
// " CONNECTED TO PYTHON - SHM
GSB HDR FILE = /home/das/backend_15m_released/SYS_FILES//gsb.hdr
get_range: Illegal range
 ++++++++  DPCMUX = 235
# gsb_stokes 4
fftmode 0
clksel 0
lta 1
clksel 0
mode 0
fstop 1
acq_bw 100.000000
acq_final_bw 0.000000
stokes 4
cntrl 1
BbLo 149000000.000000:156000000.000000
iabeam 0
pabeam1 0
pabeam2 0
###### statime [ 5370347 ] clock [ 200000000.000000]  pols [ 4] channels
[1024]
----------- get_pre_selection channels  1024 1
C00  0  [0]=0
C00  0  [1]=1
 daspar->samplers 2 : daspar->antmask 1
 get_baselines returned No. 4
### FATAL : get_fringetable(): file
/home/das/backend_15m_released/SYS_FILES//fringe_table.8k.dat can not read
====== >>>>> MAX BLOCKS = 6
====== ???????? LOGSOCK = -1 log_sock_str = LogSock0
====   LOGSOCK LogSock0
====   i = 0 SOCKID = -1 CONNECTING ON SOCKET
CONNECTING TCP_SOCK DONE
  INFO: SocketOpened (LogSock=4)
SEND INIT LOGSOCK = 4
SEND INIT LOGSOCK = 4
==== >>> send_init successful.
"

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#To record LTA File

cd /data/das/
mkdir <todays date>
cd /data/das/<todays_date>
record 12NMR01 test_<today_date>.lta &
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cd /home/sandeep/backend_15m/IRU/
[das@das15m IRU]$ ./xtrgsb32 -v /data/das/13mar2013/test.lta  -c300 -t
1,10000000,1 
Less data available than required
TM2 = 10000000 Available TS = 125
[das@das15m IRU]$

./xtrbsb32		# for usage details .....
USAGE: ./xtrgsb32 -v visibility file -o outfile -r refant -b baselines -c
chansel -t timesel -n 0/1 
e.g. below 
USAGE: ./xtrgsb32 -v raw.dat -o raw.out -r C00 -b C01,C02,W01,W05,S01,E05 -c
45,1100,1,5 -t 1,110,2,5 -n 1 
     : Chan selection format is start_chan,stop_chan,chan_incr,chan_integ 
     : Time selection format is start_time,stop_time,time_incr,time_integ 
a.  Plot self spectrum 

           	i.  for Ch 1–500 of time stamps 1-1000
 ./xtrgsb32 -v /home/gmrt/POCO_2ANT_200MHz/DATA/c9s2_3c48_080512.data -c 1,500
-t 1,1000
		ii.  for Ch 1–500 of time stamp 400.
 ./xtrgsb32 -v /home/gmrt/POCO_2ANT_200MHz/DATA/c9s2_3c48_080512.data -c 1,500
-t 400
		iii. for Ch 10–500 of time stamps 660,690 in steps of 10
 ./xtrgsb32 -v /home/gmrt/POCO_2ANT_200MHz/DATA/c9s2_3c48_080512.data -c
10,500  -t 660,690,10 

b.  Plot cross spectrum 

		i.  for Ch 10 – 500
 ./xtrgsb32 -v /home/gmrt/POCO_2ANT_200MHz/DATA/c9s2_3c48_080512.data -c
10,500  -t 1,1000 -n 1 -r C00 
		ii.  for Ch 10 – 500 of time stamp 660.
 ./xtrgsb32 -v /home/gmrt/POCO_2ANT_200MHz/DATA/c9s2_3c48_080512.data -c
10,500  -t 660 -n 1 -r C00 
		iii.  for Ch 10 – 500 of time stamp 660 to 690 in steps of 10.
 ./xtrgsb32 -v /home/gmrt/POCO_2ANT_200MHz/DATA/c9s2_3c48_080512.data -c
10,500  -t 660,690,10 -n 1 -r C00 

c.  Plot cross Ch – 310 over time 

 ./xtrgsb32 -v /home/gmrt/POCO_2ANT_200MHz/DATA/w4e6_3c48_040512.data -c 310
-t 1,1000 -n 1 -r C00 

d.  Plot specific record(s)

 ./xtrgsb32 -v /home/gmrt/POCO_2ANT_200MHz/DATA/c9s2_3c48_080512.data -c
10,500  -t 1,60,1,5 -n 1 -r C00 
 ./xtrgsb32 -v /home/gmrt/POCO_2ANT_200MHz/DATA/c9s2_3c48_080512.data -c
10,500  -t 1,57,1,57 -n 1 -r C00