EMI Receiver – Frankonia Group

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Emission measurements

EMI-Receiver

Antennas

Accessories

Core-6

The “CORE-6” is a very compact (19”, 1 RU), new digital EMI receiver which enables the user to make frequency-sweeps within a few seconds what saves hours of measuring time during developments. The receiver is full-compliant acc. to CISPR 16-1-1 and includes all important detectors like peak, quasi-peak, average, RMS, RMS-average and CISPR-average. The powerful software “EM-LAB” allows very comfortable, pre-programmed test runs acc. to CISPR/EN-standards as well as an Expert entry. The preset test runs are intended for those engineers who don’t carry out EMC tests every day and are therefore not aware of all requirements specified in the relevant standards. With help of EM-LAB you simply select your standard and start the test run for a “fast pre-check” or for the final “full compliant measurement”. Additionally professional EMC engineers have the possibility to use the “Expert entry” in which they can set their own parameters for limit-lines, correction factors, IF-bandwidth, detectors, measuring times, manual mode, frequency-lists, etc…

A 20dB pre-amplifier from 9 kHz to 6 GHz as well as a pulselimiter for conducted EMI-measurements are already integrated in the CORE-6. The EMI receiver is available together with accessories like single or three-phase LISN’s, voltage-probes, coupling networks, antennas, near-field-probes or the Van der Hoofden test-head. A frequency-extension up to 18 GHz (CORE-18) will be available in short.

Preselector Frequency ranges	(six bandpass filters) 9 kHz to 150 kHz 150 kHz to 500 kHz 500 kHz to 3 MHz 3 MHz to 10 MHz 10 MHz to 20 MHz 20 MHz to 30 MHz	(Four tracking filters and two bandpass filters) 30 MHz to 72 MHz 72 MHz to 173 MHz 173 MHz to 416 MHz 416 MHz to 1 GHz 1 GHz to 3 GHz 3 GHz to 6 GHz
IF bandwidth	3, 10, 30, 100, 300 kHz (3dB) 200 Hz – 9 kHz (CISPR 16-1-1) 10, 100 Hz – 1, 10 kHz (MIL-STD-461) (Option)	3, 10, 30, 100, 300 kHz (6dB) 120 kHz (CISPR 16-1-1) 1 MHz (B-imp)
Detectors	Peak, Quasi-peak, Average, RMS, RMS-average and CISPR-average
Noise level
		30 to 300 MHz < 10 dBuV (QP)
	9 to 150 kHz < 7 dBuV (QP)	9 to 150 kHz < 7 dBuV (QP)
Preselector ON	(200 Hz BW) < 0 dBuV (AV)
Preamplifier OFF Preamplifier ON	0.15 to 30 MHz < 11 dBuV (QP) (9 kHz BW) < 5 dBuV (AV)9 to 150 kHz < -8 dBuV (QP) (200 Hz BW) < -15 dBuV (AV)0.15 to 30 MHz < -4 dBuV (QP) (9 kHz BW) < -10 dBuV (AV)	300 to 3000 MHz < 13 dBuV (QP) (120 kHz BW) < 7 dBuV (AV)300 to 3000 MHz < 13 dBuV (QP) (120 kHz BW) < 7 dBuV (AV)3000 to 6000 MHz < 15 dBuV (QP) (120 kHz BW) < 10 dBuV (AV)30 to 300 MHz < – 9 dBuV (AV) (120 kHz BW)300 to 3000 MHz < -7 dBuV (AV) (120 kHz BW)3000 to 6000 MHz < – 1 dBuV (AV) (120 kHz BW)
Spurious response	< 0 dBuV, < 10 dBuV above 150 kHz	< 10 dBuV, < 15 dBuV above 2 GHz
Measurement accuracy S/N > 20 dB	± 1.0 dB 1 to	30 to 1000 MHz ± 1.0 dB 1 to 3 GHz ± 1.5 dB 3 to 6 GHz ± 2.0 dB
I/O interface	USB; RS-232; user port for accessories
Operating temperature	0° to 40°
Power supply	100 to 240 VAC – 50/60 Hz – 20 W
Dimensions	standard EIA Rack unit (1RU) – 482 mm (19” w) x 45 mm (1.75” h) x 362 mm (14.3” d)
Weight	5 kg

Datasheet (PDF)

ERX-6

The new Full Compliance ERX-6 EMI test receiver from Frankonia is suitable for mobile use as well as for use in systems. The ERX-6 offers a very high measuring speed so that e.g. the measurement is reduced from hours to seconds with the Quasipeak detector for emission measurements. By default, the ERX-6 is equipped with hardware that significantly accelerates the measurement according to the standards CISPR 16-1-1 Ed 3.1 and MIL461G (FFT-based measuring instrument). For standards that do not provide acceleration using the FFT-based measuring instrument, the ERX-6 has a classic stepped scan mode. In addition, it is possible to perform measurements at individual frequency points, as described e.g. at the final maximization. In conjunction with the PROVE-EMC software, the receiver can significantly improve the measurement quality and reduce the test times in conjunction with the antenna mast and turntable. Due to the excellent noise floor of <-12 dBuV (band C / D) or – 3dBuV (band E) even difficult measuring tasks can be solved, without the need for an external preamplifier. The functional scope is rounded off by a very fast spectrum analyzer as well as a high-resolution scope function.

General specifications

Frequency Range 10 Hz – 6 GHz	Reference Oscillator – Reference oscillator OCXO Aging < +/- 3.5 ppm / 15 years Temperature drift ( 0 – 60° C) < +/- 1 x 10e-8 SSB phase noise (1 Hz BW): 1 Hz -95 dBc/Hz (12.8 MHz) 10 Hz -120 dBc/Hz 100 Hz -140 dBc/Hz 1 kHz -145 dBc/Hz – Frequency resolution 0.01 Hz
Spectral purity – SSB phase noise frequency = 500 MHz, carrier offset – 100 Hz < –100 dBc (1 Hz) – 1 kHz < –107 dBc (1 Hz) – 10 kHz < –101 dBc (1 Hz) – 100 kHz < –126 dBc (1 Hz) – 1 MHz < –146 dBc (1 Hz) – 10 MHz < –150 dBc (1 Hz) (nom.) – Residual FM frequency = 500 MHz, RBW = 1 kHz, Sweep time = 100 ms < 3 Hz (nom.)	Operating modes – EMI receiver (superheterodyne) – EMI receiver (FFT-based measuring instrument) – Spectrum analyzer – Oscilloscope

EMI Receiver

Frequency readout (Analyzer mode)

-Marker resolution 0.5 Hz
– Uncertainty ±(marker frequency × reference accuracy
+ 10 % × resolution bandwidth
+ ½ (span/(sweep points – 1)) + 0.5 Hz)
– Spectrum analyzer 1 to 8 000 000
– EMI measurement 1 to 8 000 000
– Marker tuning frequency step size marker step size = sweep points span/(sweep points – 1)
– Marker step size = standard span/(default sweep points – 1)
– Frequency counter resolution 0.001 Hz
– Count accuracy ±(frequency × reference accuracy + ½ (last digit))
– Display range for frequency axis 0 Hz, 10 Hz to max. frequency
– Resolution 0.1 Hz
– Max. span deviation ±0.1 %

Receiver scan

– Scan scan with max. 100 subranges with different settings
– Scan modes normal scan, FFT-based measuring instrument according to CISPR 16-1-1
– Measurement time superhet scan, per frequency 1 μs to >100 s
– Measurement time FFT-based measuring instrument, per frequency 1 μs to >100 s
– Number of trace points up to 8 000 000
– Frequency step size normal scan min. 1 Hz
– Frequency step size FFT-based measuring instrument min. 1 Hz

EMI Receiver FFT-based Measuring Instrument

Frequency segment processed in parallel

– RBW = 10 Hz           0.08 MHz
– RBW = 100 Hz         0.8 MHz
– RBW = 200 Hz 1.6 MHz
– RBW = 1 kHz           8.1 MHz
– RBW = 9 kHz           81 MHz
– RBW = 10 kHz         81 MHz
– RBW = 120 kHz       162.5 MHz
– RBW = 100 kHz       162.5 MHz
– RBW = 1 MHz          162.5 MHz

Scanning Speed (Receiver Mode) typ.:

– Band A, Quasi-peak, dwell time 1 s : 3 s
– Band B, Quasi-peak, dwell time 1 s: 3 s
– Band C/D Quasi-peak, dwell time 1 s: 50 s
– Band E (1 GHz – 6 GHz), dwell time 100 ms: 3,5 s

FFT-Overlaping Factor

-according to CISPR 16-1-1 and CISPR 16-3
-Overlapping factor typ > 95% = 1

FFT-based measuring instrument according to CUSPR 16-1-1, MIL461 and other EMC standards. Sometimes called time-domain scan

Preselection and Preamplifier Structure

-Multiple paths with fixed filters

Analog Preselection

– 0 MHz – 162.5 MHz
– 162.5 MHz – 325 MHz
– 325 MHz – 487.50 MHz
– 487.50 MHz – 650 MHz
– 650 MHz – 812.50 MHz
– 812.50 MHz – 975 MHz

Preamplifier

– Located between preselection and ADC & mixer
– Individual pre-amps for different frequency ranges
– Gain: Typ. 20 dB, full overrange detection and auto attenuation
– Noise figure: Typ 3.5 dB
– Frequency range: 10 Hz – 6 GHz

Digital Preselection

– 0 MHz – 162.5 MHz
– 162.5 MHz – 325 MHz
– 325 MHz – 487.50 MHz
– 487.50 MHz – 650 MHz
– 650 MHz – 812.50 MHz
– 812.50 MHz – 975 MHz
– 975 MHz – 1 GHz

Low Noise Amplifier

– 30MHz – 6 GHz, Noise Figure < 4dB

Spectrum Analyzer

Spectrum Analyzer

– Sweep time range span = 0 Hz, 1 μs to 16000 s
– Span ≥ 10 Hz, swept 1 us to 16000 s
– Span ≥ 10 Hz, FFT based measuring instrument 1 μs to 16000 s
– Sweep time accuracy span = 0 Hz ±0.1 % (nom.)
– Span ≥ 10 Hz, swept ±1 % (nom.)

IF Bandwith

– 3dB bandwidth: 1 Hz – 30 MHz
– 1, 2, 3, 5 steps
– Small step size (145 steps) for channel measurments
– 6dB bandwidths CISPR: 200 Hz, 9 kHz, 120 kHz, 1 MHz
– 6dB bandwidths MIL/DO: 10 Hz, 100 Hz, 1 kHz, 100 kHz, 1 MHzVideo filter

– Relative IF bandwidth:
– 1, 1/2, 1/5, 1/10, 1/20, 1/50, 1/100 , 1/1000, 1/10000, 1/ 100000
– Detectors: MaxPeak, MinPeak, SampleDetectors (Video filter off / 3 RBW)

– Maxpeak, Average, RMS
– Dynamic requirements according to CISPR 16-1-1 (Peak, AVG) Level
– Display range displayed noise floor up to +30 dBm
– Maximum DC input level, pulse 6 V ( 0dB Att)
– RF-CW signal 120 dBVIntermodulation

– 1dB Compression Point of Mixer
f < 1 GHz 13 dBm (Digital IQ mixer)
f > 1 GHz 10 dBm (First mixer)
– Third order Intercept Point (TOI)
10 Hz – 6 GHz Typ. > 20dBm
– Second Harmonic Intercept Point (SHI)
10 Hz – 6 GHz Typ. > 55dBmDisplayed Average Noise Level RF attenuation 0dB, normalized to 1 Hz RBW,
mean marker (typ.)

– 9 kHz – 150 kHz:      – 130 dBm
– 150 kHz – 1 MHz:    – 154 dBm
– 1 MHz – 30 MHz:    – 161 dBm
– 30 MHz – 1000 MHz:    – 163 dBm (LNA off)
-169 dBm (LNA on)

Level

– Display range displayed noise floor up to +30 dBm
– Maximum DC input level, pulse 6 V ( 0dB Att)
– RF-CW signal 120 dBV

Noise Indication RF attenuation 0 dB, RBW acc. to CISPR 16-1-1,
mean marker (typ.)

– 9 kHz – 150 kHz:          – 130 dBm
– 150 kHz – 1 MHz:        – 154 dBm
– 1 MHz – 30 MHz:         – 161 dBm
– 30 MHz – 1000 MHz:   – 163 dBm (LNA off)
-169 dBm (LNA on)

– 1000 MHz – 6 GHz: -164 dmb (LNA off)
-170 dBm (LNA on)

Level Measurement Uncertainty

CISPR Indication Range – 6 dB margin to noise floor over complete amplitude range according to CISPR 16-1-1 Ed. 3.1 – Quasi-peak indication according to CISPR 16-1-1: All pulse repetition frequencies – Peak, Average, CISPR-AVG indication according to CISPR 16-1-1 in all modes – CISPR-RMS indication according to CISPR 16-1-1 – Maximum deviation for sinusoidal signals according to CISPR 16-1-1: 2dB ( 9 kHz – 6 GHz)	Absolute level uncertainty – Signal level : 40 – 60 dBuV (15 MHz) < 0.3 dB (σ = 0.1) – Frequency response (9 kHz – 6 GHz) < 0.5 dB (σ = 0.15) – Attenuator switching uncertainty (15 MHz) < 0.2 dB (σ = 0.15) – Total measurement uncertainty CW signal, S/N > 20 dB 95 % confidence level: 0.5 dB
Spurious Response – Residual spurious response RF attenuation = 0 dB – f ≤ 1 MHz < –107 dBm – f ≤ 1 MHz < –117 dBm – f > 1 MHz < –112 dBm – Image frequency < -80 dBc (nom.)	Time Domain Analysis (RF) – 1 GHz bandwidth – 2.6 GS/s sampling rate – Acquisition memory: 32000 samples – Trigger edge, post- and pre-trigger function, Amplitude trigger
Attenuator – 0 – 50 dB – 10 dB steps

General Data

Input Ports (RF Input) – N type connector, 50 Ohm – 0 dB attenuator: VSWR < 2.0 (9 kHz – 1 GHz) – 10 dB attenuator: VSWR < 3.0 (1 GHz – 6 GHz)	Remote Control – Remote control command set according to SCPI standard
Interfaces – Ethernet/LAN, USB, VGA, HDMI, Audio	Display, User Interfaces – Resolution 800 x 600 Pixel, 8,4” , TrueColor (16.78 Mio. colors), Touchscreen
PC – Mobile Dual Core processor, 4 GByte RAM, >35 GByte Solid State Disc – Operation system: Winows® 7, 64Bit	Power Supply – +11 V .. +14 V DC, 230 V +/-20 % 50 Hz or 110 V +/- 10% 60 Hz – Max. power consumption approx. 60 W
Weight – approx. 8 kg

EMI-Receiver

Antennas

Accessories

Core-6

Datasheet (PDF)

ERX-6

Anechoic Chambers

EMC Test Systems

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