Specifications

42941A Impedance Probe Kit
Terminal Connector: 4-Terminal Pair, BNC
Cable Length (approx.): 1.5 m
Weight (approx.): 2400 g
Basic Measurement Accuracy: ±1%
For detailed information, refer to the operation
manual or the specifications of 4294A.
29
Up to 110 MHz (4-Terminal Pair) Probes
Description: This impedance probe kit is designed for
use with the 4294A. It provides the capability to perform
in-circuit measurements (printed circuit patterns, the
input/output impedance of circuits, etc.) with better accu-
racy and wider impedance coverage from 40 Hz to 110
MHz. DUTs can be connected by either using the stan-
dard probe, the alligator clip adapter or the BNC adapter.
The standard probe is best for in-circuit, board-mounted
components. The alligator clip is for components too large
for the standard probe tip. The BNC adapter is used to
connect circuits or networks equipped with BNC connec-
tors.
Applicable Instrument: 4294A
Frequency: 40 Hz to 110 MHz
Maximum Voltage: ±42 V peak max (AC+DC)
Operating Temperature: -20°C to +75°C (probe only)
Furnished Accessories:
Compensation and Measurement: Adapter setup and
compensation is required before measurement. In the
Adapter setup menu, select PROBE 42941A. Use the
furnished 3.5 mm short and load standards. The open
condition can be created by not connecting the probe to
anything. Perform phase compensation, short and load
data measurements. For compensation, open and short
compensation is recommended. Short compensation is
performed by shorting the probe. To short the probe it is
recommended to use a shorting device with gold-plated
surfacing (which provides stable contact resistance).
4294A with 42941A
Description P/N Qty.
Pin Probe 42941-60002 1
Adapter BNC-SMB 1253-0476 1
Spare Pin Set (3 ea.) 42941-60004 1
3.5 mm SHORT 1250-2840 1
3.5 mm LOAD 0955-1105 1
Clip lead 8121-0003 1
Ground lead 04193-61629 1
Carrying case 42941-60011 1
Operation and Service Manual 42941-90010 1
In-circuit measurement
Open compensation
Short compensation