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5790A
Service Manual
Required Equipment
Multifunction Calibrator
Thermal Voltage Converter
874-TL Coaxial Tee, Locking
874-QNJL, Adapter, Type "N"
(F) to 874 (locking)
874-QNPL, Adapter, Type
"N" (M) to 874 (locking)
8-1/2 Digit Precision DMM
50 Type "N" Tee, Male-
Male-Male
20 dB type "N" RF Attenuator
(3 each)
10 dB type "N" RF Attenuator
(1 each)
Cable Assy., 18" Type "N"
(M) to Type "N" (F)
Adapter, Type "N" (F) to
Double Banana Plug
Frequency counter
RS-232 Video Display
Terminal
[1] See Table 3-16, "IF USING METHODS OTHER THAN SPECIFIED, MAX. UNCERT." for specific
Voltage/Frequency and Uncertainty information.
[2] The JFW attenuators must be characterized by Fluke (see text).
[3] Required only for Service Calibration.
3-28
Table 3-7. Equipment Required for Wideband Calibration
Manufacturer and Model
Fluke 5700A with Wideband (-03)
Option (incl. Cable and 50 term.)
Fluke A55 3V
Fluke P/N 157248 or equivalent
Gilbert Engineering 0874-9711 or
equivalent
Gilbert Engineering 0874-9811 or
equivalent
Hewlett Packard 3458A
Fluke P/N 912605 or equivalent
JFW Industries 50HFI-020N
JFW Industries 50HFI-010N
Pomona 4496-T-18 or equivalent
Pomona 1740 or equivalent
PM6666
Digital Equipment VT-100
Minimum use Requirements
[1]
3.2 Vrms, 10 Hz - 30 MHz
[1]
32 mV - 3.2 Vrms, 1 kHz
[1]
3 Vrms, 10 Hz - 30 MHz
0.01 - 0.20% absolute uncertainty
Compatible with A55 input connector
Facilitate connection of Wideband
output cable to 874 Tee
Facilitate connection of attenuators to
874 Tee.
32 mV - 3.2 Vrms, 1 kHz, 0.01 %
Uncertainty, 0 -7 mVDC, 20 nV short-
term stability
Functional (Stainless Steel type
recommended)
0.0001dB/dB/ C Temperature
[2]
Coefficient
50
0.5
DC Resistance
0.0001dB/dB/ C Temperature
[2]
Coefficient,
50
0.5
DC Resistance
Facilitate connection to DMM for 1 kHz
Wideband Gain verification
Facilitate connection to DMM for 1 kHz
Wideband Gain verification
5ppm Frequency Uncertainty or Better
RS-232 Serial communication
[3]
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