GSB to GWB channel mapping

GSB parameters

0th chan freq (MHz):
Band Width (MHz):
Total channels:
Net sign:
Channel to find:
Frequency (MHz):

GWB parameters

0th chan freq (MHz):
Band Width (MHz):
Total channels:
Net sign:
Equivalent Channel:
Frequency (MHz):
 


Net Sign conventions in LTA file (-/+1)
NET_SIGN = { USB(R), USB(L), LSB(R), LSB(L) }            

e.g. 
NET_SIGN = { 1, 1,-1,-1}

USB => upper side band
LSB => lower side band (not in use)

R   => 130 / right polarisation  (pol1)
L   => 175 / left  polarisation  (pol2)

 1  => frequency increases with channel number. 
-1  => frequency decreases with channel number.

GSB => gmrt software  correlator/backend, 16.6/33.3 MHz (max).

GWB => gmrt wide band correlator/backend, 200/400   MHz (max).

Band Plot 
Left plot GSB (591 to 624.33 = 33.33 MHz)               Right plot GWB (700 to 500 = 200 MHz)
NET_SIGN = { 1, 1,-1,-1}                                NET_SIGN = {-1,-1, 1, 1}