RECEIVER

 

           RECEIVER Rx_name [/LINE  name]  [/FREQUENCY  F0  [{LSB|USB}]
 [FIXED] [/CHANNELS n] [/DISCONNECT] [/IF i] [/WIDE]
      Select or disconnect a receiver for observations and sets it  up.
 Rx_name  is  the receiver name.  The receiver names are defined as the
 character string * in the names of the files  RX*.MRT  loaded  by  the
 drive program and by OBSINP (displayed when starting OBS).
      The /LINE option chooses the line to be observed in  the  current
 line  catalog.   If  you  want  to  select  a line which is not in the
 catalog, specify the /FREQUENCY option.  F0 is the rest  frequency  in
 GHz  and  LSB|USB  select the lower or upper side band.  If "FIXED" is
 present, the receiver frequency will be fixed during  the  observation
 (not doppler corrected).
      The /CHANNELS option applies only if a Multichannel Bolometer  is
 connected.   The  no.   of  channels  specified are written to the raw
 data, and usually only channel 1 is reduced by RED.
      The  /DISCONNECT  option  can  be  specified  to  disconnect  the
 specified receiver.
      The  /IF  command  selects  the  IF  to  which  the  receiver  is
 connected.   It  should  correspond  to  the  hardware  setup,  and in
 principle is correct when entering OBS.
      The /WIDE option lets you select 1GHz bandwidth for some  of  the
 receivers,  currently  for the A230, B230 and 345G.  Note that you can
 only use the 1MHz filterbank for the receivers, that are connected  in
 wide mode.