Cybertek EM5030 User manual

Shenzhen Zhiyong Electronics Co., Ltd
www.cybertek.cn
Near Field Probe Set
EM5030
EM5030LF
EM5030E
Shenzhen Zhiyong Electronics Co., Ltd
CYBERTEK

Shenzhen Zhiyong Electronics Co., Ltd
www.cybertek.cn
1.Summary
EM5030/EM5030LF series probe set contains 7 probes specially designed for testing magnetic
field. These probes are used to locating the interference source in EMI pre-compliance debugging
and can effectively shield the interference from electric field. EM5030’s frequency range is
between 30MHz~3GHz, and it has 4 types of probe head shapes.EM5030LF’s frequency range is
9kHz~50MHz, with 3 types of probe head shapes.
EM5030E series probe set contains two probes specially designed for testing electric field,
with frequency range from 30MHz to 3GHz. They are mainly used for locating the electric field
interference source, and the rest of the probe body is shielding design.
The probe is directly connected to the spectrum analyzer or oscilloscope with 50Ω BNC cable.
When the radiation or the conduction disturbance of the product surpass the standard, users can
use the near field probe to search for the certain component or circuit generating the interference
of certain frequency by measuring the coupling channel between the module and the signal shifting
speed, RF voltage of the evaluating system. When the interference signal is relatively weak, users
can improve the system sensitivity with the EM5020A(20dB attenuation) or EM5020B(30dB attenuation)
pre-amplifier.
2. Specification
Module
Description
Characteristics
EM5030－1
H probe for detecting H field 10
cm around
Frequency range:30MHz to
3GHz
Resolution :25mm
EM5030－2
H probe for detecting H field 3
cm around
Frequency range:30MHz to
3GHz
Resolution :10mm
CYBERTEK

Shenzhen Zhiyong Electronics Co., Ltd
www.cybertek.cn
EM5030－3
H probe mainly used to detect
the emission leakage of a wire.
Frequency range:30MHz to
2GHz
Resolution : 5mm
EM5030－4
H probe can be used to detect the
vertical H field.
Frequency range:30MHz to
3GHz
Resolution : 2mm
EM5030LF-5
H probe can be used to check
the H field within 10cm range
Mainly used for LW conduct
debug testing
Frequency Range 1MHz to
50MHz .
Resolution rate: around
25mm
EM5030LF-6
H probe can be used to check
the H field within 3cm range
Mainly used for low frequency
debug testing
Frequency Range: 1MHz to
50MHz
.Resolution rate: around
10mm
EM5030LF-7
H probe can be used to check
the H field within 10cm range
Mainly used for LW conduct
debug testing
Frequency Range: 9kHz to
1MHz
Resolution rate: around 25mm
CYBERTEK

Shenzhen Zhiyong Electronics Co., Ltd
www.cybertek.cn
EM5030E-8
E probe used to test the
surface electric field. Covering
zone 2*5cm。Used for bus
structure or large component
zone
Frequency Range: 30MHz to
1.5GHz
EM5030E-9
E probe used for the testing of
electric field generated on the
surface single cable surface.
Frequency range: 30MHz to
3GHz
3. Application
Tracking the EMI radio interference sources
Tracking the EMI conduct interference sources
H field detection
Application Diagram:
4. Products Description
Probes
CYBERTEK

Shenzhen Zhiyong Electronics Co., Ltd
www.cybertek.cn
Accessories
Standard Output Cable: 1m Standard Adapter: SMA female to N male
5. Packing List
Packing List
EM5030
EM5030LF
EM5030E
H probe EM5030-1
1
——
——
H probe EM5030-2
1
——
——
H probe EM5030-3
1
——
——
H probe EM5030-4
1
——
——
H probe EM5030LF-5
——
1
——
H probe EM5030LF-6
——
1
——
H probe EM5030LF-7
——
1
——
H probe EM5030E-8
——
——
1
H probe EM5030E-9
——
——
1
CK-317(SMB-SMA connecting
cable)
1
1
1
CK-22(SMA (female) to N
(male))
1
1
1
Instruction Manual
1
1
1
Warranty Card
1
1
1
Test Report
1
1
1
CYBERTEK

Shenzhen Zhiyong Electronics Co., Ltd
www.cybertek.cn
Pre-amplifier
EM5020A (20dB, 9kHz-3GHz)
EM5020B (30dB, 9kHz-3GHz)
Shenzhen Zhiyong Electronic Co., Ltd
CYBERTEK

Shenzhen Zhiyong Electronics Co., LTd
www.cybertek.cn
1. Summary
EM5020A/B pre-amplifier can be used with EM5030 near field probe to amplify the small signal from probe. The
frequency range of EM5020A/B is 9kHz - 3GHz with a fixed gain of 20dB (EM5020A) / 30dB (EM5020B). It
can greatly improve the sensitivity of system testing. The EM5020A/B can be powered by a standard USB power
adapter (Standard Accessories) which is very easy to obtained, and it also can be very conveniently powered by
the USB port of the spectrum analyzer or receiver. It can help the engineer to debug the electromagnetic
disturbance source quickly and accurately with the EM5030 of CYBERTEK.
2. Specification
Model
EM5020A
EM5020B
Frequency range
9kHz-3GHz
Gain(typically)
20dB
30dB
Flatness
±3dB
Gain
(Figure1)
(Figure2)
Max linearoutputpower
10dBm
Noise figure@2GHz
3dB
4dB
Max input power
13dBm
15dBm
Supply voltage
DC12V
Input/output interface
SMA female
Size
72mm*52mm*18mm
Figure1: Gain VS Frequency (EM5020A) Figure 2: Gain VS Frequency (EM5020B)
3. Application

Amplify the small signal

EMI disturbance source debug
CYBERTEK

Shenzhen Zhiyong Electronics Co., Ltd
www.cybertek.cn
4. Products and accessories
 Products description
EM5020A EM5020B
 Standard accessories
USB power adapter 12V booster from 5V USB SMA (male) to N (male)
5. Using Steps
Connect the output interface of the pre-amplifier to receiver or spectrum analyzer
Connect pre-amplifier power supply
Connect input signal (Please be sure that the input signal power doesn’t exceed the max input power of the
amplifier)
6. Caution
 Connect the pre-amplifier before plug power cable in.
 Do not connect the pre-amplifier if you do not know the max level of the signal. Max Input power of the
EM5020A is 13dBm, EM5020A is 15dBm. I t may be damaged if the input level exceed the Max Input
power.
 Before connecting the device to EM5030, please make sure there is no strong electromagnetic field around.
6. Packing list
Email: [e-mail] ©Zhiyong Electronics, 2023
Url: http://www.cybertek.cn Published in China, May 1, 2023
Packing list
Name
Quantity
Name
Quantity
Pre-amplifier
1
Instruction manual
1
USB 5V adapter(CK-605)
1
Warranty card
1
Adapter: SMA(male)to N(male)
1
Test report
1
12V Booster from 5V (CK-615)
1
CYBERTEK