Cybertek EM5030 Manual de usuario

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

——

H probe EM5030-2

——

H probe EM5030-3

——

H probe EM5030-4

——

H probe EM5030LF-5

——

H probe EM5030LF-6

——

H probe EM5030LF-7

——

H probe EM5030E-8

——

H probe EM5030E-9

——

CK-317(SMB-SMA connecting

cable)

CK-22(SMA (female) to N

(male))

Instruction Manual

Warranty Card

Test Report

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: cybertek@cybertek.cn ©Zhiyong Electronics, 2023

Url: http://www.cybertek.cn Published in China, May 1, 2023

Packing list

Name

Quantity

Name

Quantity

Pre-amplifier

Instruction manual

USB 5V adapter(CK-605)

Warranty card

Adapter: SMA(male)to N(male)

Test report

12V Booster from 5V (CK-615)

CYBERTEK

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