1 Apr 98

I've made some more changes in OBST which ought to make it easier to check
the receiver/line configuration.  First, the SHOW command can behave 
differently for certain commands.  When OBST first defines the verbs,
it checks if there's a <verb name>.SHOW file.  If so, it flags the verb 
so that if one types SHOW <that verb>, the normal SHOW output is skipped. 
Instead, the screen is refreshed, the cursor is left at the line where SHOW
output is usually placed, and the .SHOW file is executed.  The following .SHOW
files have been created so far:  RX.SHOW, LINE.SHOW, FESET.SHOW, and
BE_FE.SHOW.  (These commands, together with BACKEND, don't use the usual
"current" and "default" parameter scheme as the other commands.)

SHOW LINE prints the line name, rest frequency, and side band for each of the
receivers specified with the RX command.  (If receiver #1 is a bolometer, only
the information for receiver #2 is printed.  If #1 is later changed back to
a spectral line receiver, the previous LINE specified for frontend #1 will be 
resurrected.)

SHOW FESET prints the multiplier, harmonic, IF frequency, and PLL reference
frequency for each receiver. 

SHOW RX now types the names of the receivers in frontends #1 and #2, gives the
SHOW FESET output, and describes the Pointing Model in use.  The title found in
the current POINTCON.DAT file for the standard pointing model is typed, as well
as the remark for the receiver offset in use.  It also indicates which offsets
will be used should both frontends be used simultaneously. 

Finally, SHOW BE_FE simply prints the same output as the BE_FE command does. 

In addition, one can either specify the /RECEIVER by name or by frontend number
in the LINE command and in the FESET command.  (The name must be one of the two
previously specified with the RX command.)  The value of RECEIVER is replaced
by the corresponding frontend number. 

-Bill