Atec Gauss-TDEMI40G User Manual download pdf

TDEMI 40G

- 162.5 MHz full real-time analysis

bandwidth up to 40 GHz

- Measurement according to MIL and

DO standards starting from 10 Hz

- 4000x faster than conventional EMI

receivers

The TDEMI 40G system covers the frequency range 10 Hz

to 40 GHz in its standard conguration and is ready for

measurements in civil applications and especially for test-

ing in military applications and also avionics. All IF band-

widths according to MIL461 and DO160 are available in

the preselected spectrogram mode of the instrument

also. The fully gapless real-time analysis bandwidth of

162.5 MHz of the spectrogram mode up to 40 GHz makes

the TDEMI 40G unique in the instrumentation market and

provides an ideal tool for real-time EMC debugging up to

40 GHz. It supports the user in detecting, localizing, ob-

serving and analyzing emissions and in nding solutions

for reduction EMI of components and systems for military

and avionic industry.

The receiver mode of the TDEMI 40G system can be used

for full compliance EMC tests according to CISPR, MIL461

and DO160 standard. The huge computation power of

the digital signal processing unit of the TDEMI allows to

reduce test time up to a factor of 4000 in comparison to

traditional superheterodyn based receivers. A fast meas-

urement at all frequencies and with higher frequency se-

lectivities at the same time can be performed yielding in

a reduced measurement uncertainty.

Especially in the lower frequency range up to several

hundred MHz a large number of frequency points have to

be measured. The parallel digital implementation of sev-

eral thousand receivers using the short-term fast Fourier

transform (STFFT) allows the TDEMI to reduce the over-

all testing time signicantly. Especially for longer dwell

times the scan time remains very short compared to su-

perheterodyne EMI receivers and right after the results

are measured at all frequencies all the data can be stored

and documented. Thus, it is easily possible to reduce the

measurement uncertainty even further by increasing the

dwell time, which means a longer observation time at

each frequency point. But not only broadband, also sin-

gle frequencies can be measured in the same way. For a

higher sensitivity in the upper frequency range the in-

strument comes with a broadband preselected low noise

amplier already integrated in its standard conguration.

Fig. 32 – Measurement of a switched power supply according to DO160.

Measured emissions above limit line for peak detector in band B.

1 2

TDEMI 40G 1
TDEMI 40G Specications 2

Summary of Contents

Page 1 - TDEMI 40G

30TDEMI 40G- 162.5 MHz full real-time analysis bandwidth up to 40 GHz- Measurement according to MIL and DO standards starting from 10 Hz- 4000x fas

Page 2 - TDEMI 40G Specications

50TDEMI 40G SpecicationsWEIGHTED REAL-TIME SPECTROGRAMWeighted Spectrogram Mode Peak, Average, RMSTime-domain Fully gaplessFrequency Step 1

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Atec Gauss-TDEMI40G User Manual

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