Atec Agilent-11570A Manuel d'utilisateur
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5
HP 8508A
HP 85081B
HP 85082A
HP 11570A
298 Vector Voltmeter and Input Modules
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HP 8508A Option 001
HP 8508A Vector Voltmeter
The HP8508A vector voltmeter is a fully-automatic tuned receiver that
makes RF voltage and phase measurements easy. The narrowband mea-
suring technique gives a dynamic range of over 90 dB and a sensitivity of
10 µV to trace even the smallest signal. The vector voltmeter also mea-
sures the difference between the two input channels with at least 0.1
degree resolution over a full +180 to –180 degree range, so it can be used
for another complete set of measurements—such as electrical length,
phase distortion, or impedance. The standard unit is supplied with the
HP 85081B input module, which has two high-impedance probe inputs
that operate from 100 kHz to 1 GHz. Its ability to store reference and use
it in later measurements means individual circuit sections can be charac-
terized and adjusted independently. Any CW source can be used as a
stimulus—even a source that is part of the device being tested—so mea-
surements can be made under normal operating conditions. To adapt the
probe inputs for measurements in a 50 Ω environment, the HP 11570A
accessory kit provides two HP 11536A probe tees, an HP 11549A power
splitter, and two HP 908A 50 Ω terminations. Option 050 is supplied with
the HP 85082A input module. Its 50 Ω inputs operate from 300 kHz to
2 GHz, and provide the accuracy and dynamic range to make measure-
ments on active and passive components.
HP 8508A with HP 85081B High-Impedance Input Module
Specifications
Frequency Range: 100 kHz to 1 GHz (300 kHz to 2 GHz
1
)
Maximum Input: 2 V peak ac (+16 dBm
1
), ±50 Vdc
A- (ref) Channel Minimum: 10 mV (–47 dBm
1
), 100 kHz to 300 kHz 1mV
(–47 dBm
1
), 300 kHz to 3 MHz 300
µ
V, 3 MHz to 1 GHz (–57 dBm,
3 MHz to 2 GHz
1
)
B-Channel Noise Level: 10
µ
V (–87 dBm
1
)
Input Crosstalk: >100 dB, 1 MHz to 500 MHz > 80 dB, 500 MHz to
1 GHz (>70 dB, 1 GHz to 2 GHz
1
)
Magnitude Accuracy
Absolute Accuracy +1/–1.5 dB, 100 kHz to 300 kHz
(A,B 100 mV, 15° to 30°C) ±.5 dB, 300 kHz to 1 MHz
±.3 dB, 1 MHz to 100 MHz
±.6 dB, 100 MHz to 300 MHz
±1 dB, 300 MHz to 1 GHz
(±1 dB, 300 MHz to 1.5 GHz
1
)
(+1/–2 dB, 1.5 GHz to 2 GHz
1
)
Ratio Accuracy ±1 dB, 100 kHz to 300 kHz
(A,B 100 mV, 15° to 30° C) ±.4 dB, 300 kHz to 1 MHz
±.2 dB, 1 MHz to 100 MHz
±.4 dB, 100 MHz to 300 MHz
±.6 dB, 300 MHz to 1 GHz
(±.6 dB, 300 MHz to 1.5 GHz
1
)
(±1 dB, 1.5 GHz to 2 GHz
1
)
Phase Accuracy (in degrees) ±4, 300 kHz to 1 MHz
(A,B 100 mV, 15° to 30° C) ±1, 1 MHz to 100 MHz
±4, 100 MHz to 300 MHz
±6, 300 MHz to 1 GHz
(±6, 300 MHz to 1.5 GHz
1
)
(±12, 1.5 GHz to 2 GHz
1
)
1
Specifications apply to HP 85082A 50 Ωinput module only.
Search and Lock Time: Lockup (within one range): 40 ms, frequencies
up to 3 MHz; 20 ms, frequencies greater than 3 MHz
General: HP 8508A only
Power: 100, 120, 220 or 240 V +5%/–10%, 48 to 440 Hz, 40 VA
Size: 425.5 mm W x 133 mm H x 473.3 mm D (16.75 in x 5.25 in x 18.65 in)
Option 001: 524.5 mm W x 158.8 mm H x 524.5 mm D (19.75 in x 6.25 in
x 20.65 in)
Weight: net, 8.1 kg (18 lb); shipping, 11 kg (24 lb).
Option 001: net, 9.4 kg (21 lb); shipping 12.5 kg (28 lb).
HP 11570A Accessory Kit
50 ΩTees: For monitoring signals on 50 Ω transmission line.
Kit contains two 50 Ωtees, both with type-N female connectors.
50 ΩPower Splitter: All connectors type-N female
HP 908A 50 ΩTermination: For terminating 50 Ωcoaxial systems
in their characteristic impedance. Kit contains two 50 Ωterminations,
both with type-N male connectors.
HP 11512A Short: Type-N male
Ordering Information
HP 8508A Vector Voltmeter (includes HP 85081B)
Opt 001 Bail Handle and Front Protective Cover
Opt 801 Two each HP 11576A 10:1 Divider and
HP 10216A Isolators
HP 85081B Input Module (100 kHz to 1 GHz,
high-impedance probe inputs)
HP 85082A Input Module (300 kHz to 2 GHz,
50 ΩType-N inputs)
HP 11570A Accessory Kit (for measurement of 50 Ω
systems with standard HP 8508A)
• RF voltage and phase measurements
• 100 kHz to 1 GHz high-impedance probe inputs
• 300 kHz to 2 GHz 50 Ωinputs
IN99SEC025.QXD 8/25/98 9:49 AM Page 298
1
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5HP 8508AHP 85081BHP 85082AHP 11570A298 Vector Voltmeter and Input ModulesNetwork AnalyzersMiXmedia Client: Hewlett Packard Project: HP Test & Me
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