Technical data

3 Calibration
16 U2761A Service Guide
Introduction
If the U2761A fails any of the tests or if any abnormal test
results are obtained, return the unit to the Agilent Service
Center for readjustment.
Recommended Test Equipment
The recommended test equipment for the verification and
calibration procedures are listed in the table below.
Table 3 - 1 Recommended test equipment
Instrument Minimum requirement Recommended model Purpose
Digital
multimeter
(DMM)
AC volts
DC volts
Resistance
• True rms
• AC coupled
• Accuracy: ±0.02% to 1 MHz
• Accuracy: 50 ppm
• Resolution: 100 μV
• 4-wire measurement
• Offset compensated
• Accuracy: ±0.1 Ω
Agilent 3458A Measures voltage. Used in
multiple procedures
Power meter • 100 kHz to 100 MHz
• 1 μW to 100 mW (–30 dBm to +20 dBm)
• Accuracy: 0.02 dB
• Resolution: 0.01 dB
Agilent E4418B Measures voltage. Used in
multiple procedures
Power sensor • 100 kHz to 100 MHz
• 1 μW to 100 mW (–30 dBm to +20 dBm)
Agilent 8482A Measure voltages. Used in
multiple procedures
Frequency
counter
• Accuracy: 0.1 ppm Agilent 53131A Opt 010 Checks timebase parameter
Oscilloscope • 500 MHz
• 2 GSa/s
• 50 Ω input termination
Agilent DS08064A Checks output signal
Spectrum
analyzer
• 10 kHz to 1 GHz
• Average Continuous Power: +25 dBm
• Amplitude Accuracy: ±0.5 dB
• Input Impedance: 50 Ω
Agilent E4443A Checks output signal
Cable and
adaptor
• 50 Ω BNC (male to male) cable
• BNC (female) to dual banana
• BNC (female) to N type (male)
• BNC (female) to N type (female)
– Signal interconnected