HP 8753E - Page 16

Reflection Tracking (ERF’ and ERR)
..............
11-13
Description ........................
11-13
Significant System Components...............
11-13
Affected Measurements
..................
11-13
Isolation (Crosstalk, EXF and EXR)
..............
11-14
Description ........................
11-14
Significant System Components
...............
11-14
Affected Measurements
..................
11-14
LoadMatch(ELF’andELR).
.................
11-15
Description ........................
11-15
Significant System Components
...............
11-15
Affected Measurements
..................
11-15
Transmission Tracking (ETF and ETR)
.............
11-16
Description ........................
11-16
Significant System Components
...............
11-16
Affected Measurements
..................
11-16
12. Theory of Operation
How the HP 8753E Works
...................
12-1
The Built-In Synthesized Source
...............
12-2
The Source Step Attenuator................
12-2
The Built-In Test Set
.....................
12-3
The Receiver Block
.....................
12-3
The Microprocessor
....................
12-3
Required Peripheral Equipment
................
12-3
A Close Look at the Analyzer’s Functional Groups
........
12-4
Power Supply Theory
.....................
12-5
Al5 PrereguIator
......................
12-5
Line Power Module
....................
12-6
Preregulated Voltages
...................
12-6
Regulated +5 V Digital Supply ...............
12-6
Shutdown Indications: the Green LED and Red LED
.....
12-6
A8 Post Regulator
......................
12-7
Voltage Indications: the Green LEDs ............
12-7
Shutdown Circuit
.....................
12-7
Variable Pan Circuit and Air Flow Detector .........
12-7
Display Power
.......................
12-8
Probe Power
.......................
12-8
Digital Control Theory
.....................
12-8
Al Front Panel
.......................
12-10
A2 Front Panel Processor
...................
12-10
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