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â– 492/492P Sen/ice Vol. I (SN B030000 & up)
LIST OF TABLES
Table
Table
No.
Page
No.
Page
1-1
Electrical Characteristics
...........................
1-4
4-11
Front-Panel Registers..............................
4-47
1 -2 Environmental Characteristics....................
1 - 1 2
4-12
Sweep Registers
.....................................
4-47
1-3
Physical Characteristics............................
1-13
4-13
Span Attenuator Registers (75 and 76) .. . 4-48
1-4 Option 01 Electrical Characteristics
..........
1-15 4-14
1st LO Driver Registers (72 and 7E)
..........
4-48
1-5
Option 03 Electrical Characteristics
..........
1-17
4-15
Preselector Driver Control (77)
................
. 4-49
2-1
Shipping Carton Strength
.........................
2 - 2
4-16
Center Frequency Control Registers
3-1
Equipment Required for Calibration
..........
3-1
(70, 71, and F0).........................................
. 4-49
3-2
Harmonic Number (n) vs Frequency 4-17
Phaselock Control Registers (73 and F3)..
. 4-49
Range .......................................................
3-7
5-1 RF Interface Lines
...................................
.
. 5-5
3-3
Correction Factor To Determine True
5-2
2nd Converter IF Selection........................
. 5-7
Signal Level...............................................
3-13
5-3 Switch and Amplifier Selection Summary... 5-16
3-4
Recommended Test Equipment for 5-4
Bandwidth Selection
.................................
5-24
Measuring Frequency Response................
3-15
5-5 Gain Step Combinations............................
5-26
3-5
Narrow and Wide Spans vs Frequency
5-6 Progression of Gain Reduction
..................
5-27
Band.........................................................
3-20
5-7
Filter Component Combinations
................
5-37
3-6
Span/Div vs Time Markers........................
3-22
5-8 J2039 Truth Table
.....................................
5-46
3-7
492/492P Sensitivity
.................................
3-25
5-9 Control Port...............................................
5-53
3-8 Sensitivity (Option 01)
...............................
3-26
5-10
Address/Data P ort
...................................
5-53
3-9
Adjustment Steps for Calibration
..............
3-42
5-11 Sweep Rate Selection Codes
....................
5-58
3-10
Power Supply Voltage Tolerances
............
3-43
5-12
Calibration Control Selection Codes
..........
5-60
3-11
Resolution and Sweep Rate as a Function
5-13
Attenuation Selection Codes
......................
5-61
of Span in Auto Mode
...............................
3-49
5-14
U4017 (U3027) Output Lines
....................
5-62
3-12 Ext Mixer Band Leveling Adjustments ....
3-73
5-15
U5031 Output Lines
.................................
5-64
4-1
Relative Susceptibility to Static Discharge
5-16
Preselector Frequency Bands
....................
5-65
Damage.....................................................
4-1
5-17
ADDRESS 70 Formats
.............................
5-69
4-2 Equipment Required
.................................
4-18
5-18
DAC Tuning Codes
...................................
5-69
4-3 Equipment Required for 2nd LO
5-19
U2025 Output Lines.................................. 5-75
Calibration................................................. 4-26
5-20 Condition Codes
.......................................
5-78
4-4 Equipment Required for Calibrating
5-21
Address Select Lines................................
5-83
14-22 MHz Phaselock Circuit.................... 4-29
5-22
492/492P Microcomputer Address Space . 5-83
4-5
Variable Resolution Data Register
............
4-44
5-23
PIA Register and Interface Select Codes.. 5-85
4-6
Log & Video Amp Registers......................
4-45
5-24
Instrument Bus Register Addresses
..........
5-86
4-7
Video Processor Control (7C)....................
4-45
5-25
Parallel POLL Byte....................................
5-87
4-8
Digital Storage Registers (7A, FA, and 7B)
4-45
5-26
GPIA Registers
.........................................
5-101
4-9
Z-Axis and RF Deck Control (4F)
..............
4-46
6 -1
Environmental Characteristics
....................
6-1
4-10
Crt Readout Registers (5F and 2F)
............
4-46
6 - 2
Physical.....................................................
6 - 2
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REV AUG 1981
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