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TBCP2-750
RF CURRENT MONITORING PROBE
1 Introduction
The TBCP2-750 is a snap-on RF current monitoring probe, expanding the Tekbox product
range of affordable EMC pre-compliance test equipment.
The probe has a very flat response with a 3dB bandwidth of 750 MHz and is characterized
and usable over the frequency range from 10kHz to 750 MHz.
Picture 1: TBCP2-750 RF current monitoring probe
The aperture of the RF current monitoring probe is 32 mm. Its transfer impedance is > 15 dB
Ohm in the range from 1 MHz to 750 MHz.
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TBCP2-750
RF CURRENT MONITORING PROBE
2 Specification
Characterized frequency range: 10 kHz to 750 MHz
Aperture diameter: 32 mm
Outside diameter: 73 mm
Height: 20 mm
Weight: 320 g
Connector type: N female
Transfer impedance: 0 to 22 dBΩ between 150 kHz and 750 MHz
Max. primary current (DC - 400 Hz): 80 A
Max. primary current (RF): 3 A
Max. core temperature: 125 °C
3 Transfer impedance
Figure1: typical transfer impedance: 10 kHz to 1 GHz, linear
Figure2: typical transfer impedance: 10 kHz to 1 GHz, logarithmic
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Frequency [MHz]
transfer impedance [dBΩ]
Frequency [MHz]
transfer impedance [dBΩ]
0.01
-23.65
150
22.14
0.02
-17.81
160
22.12
0.03
-14.14
170
22.10
0.04
-11.58
180
22.06
0.05
-9.78
190
22.10
0.06
-8.23
200
22.21
0.07
-6.89
225
22.19
0.08
-5.73
250
22.16
0.09
-4.65
275
22.04
0.1
-3.75
300
21.86
0.2
2.31
325
21.81
0.3
5.81
350
21.77
0.4
8.28
375
21.73
0.5
10.17
400
21.69
0.6
11.70
425
21.63
0.7
12.96
450
21.54
0.8
14.06
475
21.40
0.9
14.97
500
21.36
1
15.71
525
21.24 2 19.45
550
21.16 3 20.34
575
21.07 4 20.73
600
21.03 5 20.96
625
20.87 6 21.12
650
20.84 7 21.25
675
20.71 8 21.35
700
20.37 9 21.46
720
20.02
10
21.51
740
19.57
20
21.93
760
19.14
30
22.14
780
18.51
40
22.23
800
17.45
50
22.25
820
15.95
60
22.26
840
12.73
70
22.31
860
1.22
80
22.33
880
9.65
90
22.35
900
13.04
100
22.33
920
13.85
110
22.31
940
14.17
120
22.27
960
13.70
130
22.21
980
13.02
140
22.17
1000
11.55
TBCP2-750
RF CURRENT MONITORING PROBE
4 Typical transfer impedance table
The table below shows typical transfer impedance data of a TBCP2-750 current probe. Each
current probe is delivered with its corresponding measurement protocol. This data can be
used for the creation of a correction file for EMCview or similar EMC measurement software.
The transfer impedance in dBΩ subtracted from the analyzer reading in dBµV gives the
corrected reading in dBµA.
Refer to the application notes of EMCview on how to create a current probe correction file.
Table1: Transfer impedance: 10 kHz to 1 GHz
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Part Number
Description
TBCP2-750
Snap on RF current monitoring probe, beech-wood box,
calibration protocol
TBCP2-CAL
Calibration fixture for TBCP2 current probe series
Version
Date
Author
Changes
V 1.0
7.12.2020
Mayerhofer
Creation of the preliminary document
V 1.1
28.1.2021
Mayerhofer
Photo update
TBCP2-750
RF CURRENT MONITORING PROBE
5 Accessory
Tekbox supplies a calibrator corresponding with the TBCP2 series of snap on current probes:
Picture 2: TBCP2-CAL RF current probe calibration fixture
6 Ordering Information
7 History
www.tekbox.com
TekBox Digital Solutions Vietnam Pte. Ltd.
Factory 4, F5, Lot I-3B-1, Saigon Hi-Tech Park, Tan Phu Ward, District 9, Ho Chi Minh City, Vietnam
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