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Getting Started with the HP E1368A/69A/70A
Using This Chapter
Microwave Switch Description
Chapter 1
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This chapter describes the Microwave Switch modules, and contains
information on how to program them using SCPI (Standard Commands for
Programmable Instruments) commands. This chapter contains the
following:
Microwave Switch Description . . . . . . . . . . . . . . . . . . . . . . . Page 11
Instrument Definition. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 14
Programming the Microwave Switch . . . . . . . . . . . . . . . . . . Page 14
Initial Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 16
All three Microwave Switch modules provide switching of up to five
microwave coaxial switches or channels. The difference between the HP
E1368A Microwave Switch, the HP E1369A Microwave Switch Driver,
and the HP E1370A Microwave Switch/Attenuator Driver modules are
described below:
The HP E1368A Microwave Switch is a 3-channel, single-pole,
double-throw coaxial switch module. The three coaxial switches
provided have excellent electrical characteristics for 502
transmission systems operating from DC to 18 GHz. The module
panels are numbered 00, 01, and 02 to indicate the channel number
of each coaxial switch installed.
The HP E1369A Microwave Switch Driver is identical to the HP
E1368A, except the coaxial switches are not installed. The module
panel has three cutouts and various mounting holes that allow the
user to install up to three 3-port, 4-port, or 5-port, 42Vpk drive level
coaxial switches. Drive level voltage can be internal (+5 and
+12Vdc) or external (42Vpk). The module panel is numbered 00,
01, and 02 to indicate the channel number of each coaxial switch.
Channel 03 and 04 are not labeled on the panel. Up to five coaxial
switches can be controlled (e.g. three internal, two external; five
external; etc) using the 14-pin connector.
The HP E1370A Microwave Switch/Attenuator Driver is identical to
the HP E1369A, except the module panel and mounting holes have
been modified to allow the user to install one Single-pole,
Multi-throw Switch or one Step Attenuator. Because of the size of
the switches and the attenuators, the module takes up two B-size
slots. Drive level voltage can be internal (+5 and +12Vdc) or
external (42Vpk). Up to a Single-pole, Six-throw Switch can be
mounted on to the assembly or used externally using the 14-pin
connector.
Getting Started with the HP E1368A/69A/70A 11
Chapter 1
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