Module_HP8720B (ul_pbar_instruments)

 *  Module intent:
 *    Module HP8720B provides a high-level C language interface to the Hewlett
 *    Packard model HP 8720B network analyzer.  The HP8720B routines handle all
 *    details of the GPIB communications and provide a programmer interface that
 *    presents the network analyzer in the way that an engineer might imagine.
 *    Individual routines are provided for setup of all 'generic network
 *    analyzer' parameters.
 *    including:
 *	HP8720B__GetFactorySetup() Returns all NA__xxx parameter values set
 *	  when the HP8720B is given a factory preset command.  The values are
 *        returned in a structure defined in pbar_instruments.h.