Instruction manual

298 Appendix B
Differences from Agilent 4286A
2. Differences Between 4286A and 4287A Hardware
2. Differences Between 4286A and 4287A Hardware
This section lists the differences between the 4286A and 4287A hardware.
Table B-1 Measurement performance
4287A 4286A
Frequency
1 MHz to 3 GHz, in 100 kHz steps
Max 32 points by 8 boards
1 MHz to 3 GHz, in 10 kHz steps
Max 10 points
Test signal
level
For open system:
4.47 mV to 0.502 V at ≤ 1 GHz
4.47 mV to 0.447 V at > 1 GHz
For short-circuited system:
0.0894 to 10 mA at ≤1 GHz
0.0894 to 8.94 mA at > 1 GHz
For open system:
10 mV to 1 V
For short-circuited system:
0.2 to 20 mA
Resolution
0.1 dBm (also when voltage
and/or current is set)
Refer to the specification.
Basic accuracy ±1% ±1%
Range of Z
measurement
200 mΩ to 3 kΩ
(at 1 MHz, accuracy < 10%)
200 mΩ to 3 kΩ
(at 1 MHz, accuracy < 10%)
Test head
1 m added standard, 1 m added
optionally (2 m in total)
Right angle only
3.5 mm (male)
1 m added standard, 3 m added
optionally
Right/straight angle
3.5 mm (male)
Duration of
measurement
9 ms/point 15 ms/point
Table B-2 Functions for manufacturing line
4287A 4286A
DCR
measurement
For contact error check, ON/OFF
switchable
Contact errors are checked
during calibration.
For contact check, ON/OFF
switchable
Contact errors are NOT checked
during calibration.
Scanner
compensation
Scanner I/F not provided
By Table switching, Cal setting
is enabled for each of the
channels (through GPIB).
Scanner I/F not provided
With I-Basic, compensation is
enabled for each of the channels.