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  The IEEE-488 interfaces are used for communication and control between the GBT real-time computers and commercially procured instruments. In our system, these devices are synthesizers, spectrum analyzers, and counters. A fiber-optic extender is used to pipe the IEEE-488 bus up the the receiver room, where it is used to control the tracking LO equipment.

John Ford
Fri Mar 13 16:06:38 EST 1998