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Comparison Noise Emitters (CNE)

 

Eurofins York Logo 

Made in the UK

 Comparison Noise Emitter Index

Noise Emitter (30Hz - 6GHz)
Noise Emitter (9KHz - 1GHz)
Noise Emitter (9KHz - 5GHz)

Eurofins York Comparison Noise Emitter (30 Hz to 6 GHz)

York Logo

The Comparison Noise Emitter VI

Model CNEVI

30Hz to 6GHz

comparison noise emitter 6, CNEVI + MCN03

 

Data
 
Catalog
Continuous, broadband output
Full spectrum measurements and analysis
Stable output
Repeatable measurements
Conducted and radiated output options
Evaluation of both conducted and radiated systems
30 Hz to 6 GHz output
Applications across a broad frequency spectrum
Compact and Portable
Comparisons between sites and environments
Battery powered
No power or interconnecting cable effects on measurements

The Comparison Noise Emitter VI (CNE VI) is the latest generation broadband noise source, capable of providing a continuous output from 30 Hz to 6 GHz. The stable output allows the CNE VI to be used as a general-purpose reference source for characterising and verifying both conducted and radiated test environments.

The CNE VI is a broadband noise source that is capable of producing a continuous noise output within the 30 Hz to 6 GHz frequency range. The broadband nature of the output enables the observation of details within the spectrum that would be missed using a comb generator.

The CNE VI features two separate outputs; a 50 Ω BNC connector for the 30 Hz to 30 MHz signal and a 50 Ω N-type output connector for the 30 MHz to 6 GHz signal. For radiated operation, either output can be attached to a selection of antennas available in a range of frequency coverage and types. An IEC 320 adapter is also available to provide a connection to LISN equipment, as well as an RJ11/RJ14/RJ25/RJ45 adapter for connection to telecoms ISNs.

The CNE VI is an ideal source for carrying out checks on Open Area Test Sites (OATS) and fully- or semi-anechoic chambers. The CNE VI is compact and battery powered, allowing operation as an electrically small source, which minimises the effect of the CNE VI itself when characterising the electromagnetic environment. The CNE VI is housed in a metal enclosure so that it can be mounted in direct contact with a metal ground plane as may be required by some tests.

Applications

Validation and verification of radiated and conducted measurement systems, such as

  • Open Area Test Sites (OATS)
  • Fully Anechoic Rooms (FAR)
  • Semi-Anechoic Chambers (SAC)
  • Gigahertz Transverse ElectroMagnetic (GTEM) cells
  • Line Impedance Stabilisation Network (LISN)
  • Impedance Stabilisation Network (ISN)

Reference source for

  • Daily pre-test verification checks as required by the accreditation authorities e.g. ISO 17025, DEFSTAN 59-411
  • Long-term performance monitoring
  • Cable position investigation
  • Investigation of screened room behaviour
  • Characterisation of filter performance
  • Cable loss measurements

Measuring amplifier gain and bandwidth

Spectrum analyser / receiver pre-check

Investigation, characterisation and comparison of different measurement environments such as OATS, FAR or SAC

Inter-laboratory test programs

Proficiency test programs

Specifications

Noise Mode 1

Frequency Range

  • 30 Hz to 30 MHz direct connection into 50 Ω system

  • Up to 30 MHz radiated using a 1 m monopole

  • Up to 30 MHz radiated using loop antennas

Output Connector

  • 50 Ω BNC-type socket

Temperature Stability

  • <+/-0.5 dB between 30 Hz to 30 MHz, from 5°C to 40°C

Time Stability

  • Typically <1 dB over a 12 month period

Operating Time

  • 14 hours typical with alkaline cells

Noise Mode 2

Frequency Range

  • 30 MHz to 6 GHz direct connection into 50 Ω system

  • 30 MHz to 6 GHz radiated using MON03 monopole and MCN03 monocone antennas

Output Connector

  • 50 Ω BNC-type socket

Temperature Stability

  • <+/-1 dB between 30 MHz to 6 GHz, from 15°C to 30°C

  • <+/-1.5 dB between 30 MHz to 6 GHz, from 5°C to 40°C

Time Stability

  • Typically <1 dB over a 12 month period

Operating Time

  • 6.5 hours typical with alkaline cells

Other

Dimensions

  • 120 mm x 120 mm x 60 mm

  • 140 mm x 140 mm x 79 mm including connectors, switches

Weight

  • 1 kg (including cells)

Power Supply

  • 4 x 1.5 V cells (AA or equivalent). Alkaline or rechargeable NiMH

Indicators

  • Active

  • Low battery

Controls

  • Rotary switch for mode selection including OFF

Standard Order Kits

CNEVIKIT01 - Standard CNE VI comparison noise emitter kit

Parts included

  • CNE VI noise source
  • MON03 - 200 MHz to 1 GHz (optimum) 270 mm long monopole antenna
  • LSA03 - LISN adapter with IEC 320 style connector

CNEVIKIT02 - Enhanced CNE VI comparison noise emitter kit

Parts included

  • CNE VI noise source
  • MON03 - 200 MHz to 1 GHz (optimum) 270 mm long monopole antenna
  • LSA03 - LISN adapter with IEC 320 style connector
  • TLM02 - 30 MHz to 300 MHz (optimum) 270 mm long top-loaded monopole antenna
  • MCN03 - 1 GHz to 6 GHz (optimum) monocone antenna

All kits supplied with

  • Alkaline batteries
  • Hard case
  • Manual
  • CAL20 - 0 GHz to 6 GHz output power measurements in all modes using a spectrum analyser or receiver

Accessories

TLM01 - 200 MHz to 1 GHz (optimum) 100 mm top-loaded monopole antenna

TLM02 - 30 MHz to 300 MHz (optimum) 270 mm top-loaded monopole antenna

MCN03 - 1 GHz to 6 GHz (optimum) 120 mm diameter monocone antenna

MON02 - Telescopic rod antenna

MON03 - 200 MHz to 1 GHz (optimum) 270 mm long monopole antenna

LSA03 - LISN adapter with IEC 320 style connector

NIA01 - ISN adapter with RJ11/RJ14/RJ25/RJ45 style connection

 

Eurofins York Noise Emitter (150 KHz to 1 GHz)

York Logo

The Comparison Noise Emitter V

Model CNEV

9KHz to 1GHz

 

York CNEV Kit

 

Data

Continuous, broadband output
Full spectrum measurements and analysis
Stable output
Repeatable measurements
Conducted and radiated output options
Evaluation of both conducted and radiated systems
9 kHz to 1 GHz output
Applications across a broad frequency spectrum
Compact and Portable
Comparisons between sites and environments
Battery powered
No power or interconnecting cable effects on measurements
Low Cost
Affordable confidence in measurement system results

Radiated Emissions

The CNE V is a broadband noise source which provides continuous output power from 9kHz to 1GHz. The broadband nature of the output enables the observation of details within the spectrum which would be missed with a comb generator. For radiated operation two monopole antennas, optimized for different bands of the spectrum, are available which attach to the top of the unit. The CNE V is an ideal source for carrying out checks on open area test sites (OATS) and anechoic chambers.

The CNE V is battery powered to allow operation as an electrically small source which minimizes the effect of the structure of the CNE V itself when characterizing the electromagnetic environment. The CNE V is housed in a metal box so that it can be mounted in direct contact with a metal ground plane as may be required by some tests. The power output level of the unit avoids the overloads possible with impulsive noise sources which may cause damage to the sensitive input circuits of receiving equipment.

Conducted Emissions

In the same way that using the CNE V with an antenna can be used to check radiated measurement systems, a BNC connector provides a direct 50Ω matched output which can be used to carry out checks on conducted measurement systems. An adaptor is available (LSA02) which provides a capacitive link from the output of the CNE to a standard IEC 320 mains power connector. This allows checks and investigations on conducted measurement systems to be made, for example using a LISN or an absorbing clamp.

Applications

  • Comparisons between different measurement environments such as OATS or anechoic chambers
  • Radiated and conducted measurement systems validation and verification.
  • Reference source for:
    • Daily pre-test checks as required by the accreditation authorities, eg ISO17025
    • Long-term performance monitoring
    • Cable position investigation
  • Investigation of screened room behavior
  • Characterization of filter performance
  • Cable loss measurements
  • Spectrum analyzer / receiver pre-check

Specifications

Frequency Range

  • 9 kHz to 1 GHz direct connection into 50 Ω system
  • 30 MHz to 1 GHz radiated using TLM01 and TLM02 antennas

Output Connector

  • 50 Ω BNC-type socket

Temperature Stability

  • 9 kHz to 1 GHz, <=1 dB, at an ambient temperature of 15°C to 30°C
  • 9 kHz to 1 GHz, <=2 dB, at an ambient temperature of 5°C to 40°C

Time Stability

  • Typically <1 dB over a 12 month period

Dimensions

  • 120 mm x 120 mm x 41 mm (60 mm including connector)

Weight

  • Approx 0.53 kg (including battery)

Power Supply

  • 1 x 9 V battery (PP3 or equivalent). Alkaline or rechargeable NiMH

Operating Time

  • 3 hours typical with alkaline batteries

Indicators

  • Power on
  • Low battery

Standard order kits

CNEVKIT01 - Standard CNE V comparison noise emitter kit

Parts included

  • CNE V noise source
  • TLM01 - 200 MHz to 1 GHz (optimum) 100 mm long top-loaded monopole antenna

CNEVKIT02 - Enhanced CNE V comparison noise emitter kit

Parts included

  • CNE V noise source
  • TLM01 - 200 MHz to 1 GHz (optimum) 100 mm long top-loaded monopole antenna
  • TLM02 - 30 MHz to 300 MHz (optimum) 270 mm long top-loaded monopole antenna
  • LSA03 - LISN adapter with IEC 320 style connector

All kits supplied with

  • Alkaline batteries
  • Hard case
  • CAL03 - 9 kHz to 1 GHz CNE V output power measurement using spectrum analyser
  • Manual

Accessories

TLM01 - 200 MHz to 1 GHz (optimum) 100 mm top-loaded monopole antenna

TLM02 - 30 MHz to 300 MHz (optimum) 270 mm top-loaded monopole antenna

MCN03 - 1 GHz to 6 GHz (optimum) 120 mm diameter monocone antenna

LSA03 - LISN adapter with IEC 320 style connector

NIA01 - ISN adapter with RJ11/RJ14/RJ25/RJ45 style connection

MON02 - Telescopic rod antenna

 

Eurofins York Noise Emitter (9 KHz to 5 GHz)

York Logo

The Comparison Noise Emitter V+

Model CNEV+

9KHz to 3.5GHz (usable to 5GHz)

 

York CNEV Kit

 

Data

Continuous, broadband output
Full spectrum measurements and analysis
Stable output
Repeatable measurements
9 KHz to 3.5 GHz output (Usable to 5 GHz)
Measurements at today's operating frequencies
Compact and Portable
Comparisons between sites and environments
Battery powered
No power or interconnecting cable effects on measurements

The Comparison Noise Emitter V+ (CNE V+) is an enhanced version of the low-cost CNE V broadband noise source, providing an extended continuous output from 9 kHz to 3.5 GHz with a useable output to 5 GHz.

The highly stable output allows the CNE V+ to be used as a general-purpose reference source for characterising and verifying both conducted and radiated test environments.

The broadband nature of the output enables the observation of details within the spectrum that would be missed when using a comb generator, whilst the power output level of the unit avoids the overloads possible with impulsive noise sources that may cause damage to the sensitive input circuits of receiving equipment.

The CNE V+ is supplied with a 50 Ω BNC-type output connector for direct connection to conducted measurement systems. An IEC 320 adapter is also available to provide a connection to LISN equipment, as well as an RJ11/RJ14/RJ25/RJ45 adapter for connection to telecoms ISNs.

The CNE V+ can also be connected to an antenna, to generate reference fields for use with radiated emissions test environments such as Open Area Test Sites and anechoic chambers. A selection of antennas that connect directly to the CNE V+ for this purpose is available. The CNE V+ is compact and battery powered to allow operation as an electrically small source at lower frequencies, thereby minimising the effect of the CNE V+ structure when used as a radiating reference.

Specifications

Frequency Range

  • 9 kHz to 3.5 GHz (usable to 5 GHz) into a 50 Ω system
  • 30 MHz to 3.5 GHz radiated using TLM01, TLM02 and MCN03 antennas

Output Connector

  • 50 Ω N-type socket

Temperature Stability

  • 9 kHz to 3.5 GHz, <=1 dB, at an ambient temperature of 15°C to 30°C
  • 9 kHz to 3.5 GHz, <=2 dB, at an ambient temperature of 5°C to 40°C

Time Stability

  • Typically <1 dB over a 12 month period

Dimensions

  • 120 mm x 120 mm x 41 mm (60 mm including connector)

Weight

  • Approx 0.53 kg (including battery)

Power Supply

  • 1 x 9 V battery (PP3 or equivalent). Alkaline or rechargeable NiMH

Operating Time

  • 3 hours typical with alkaline batteries

Indicators

  • Power on
  • Low battery

Standard Order Kits

CNEVKIT03 - Standard CNE V+ comparison noise emitter kit

Parts included

  • CNE V+ noise source
  • TLM01 - 200 MHz to 1 GHz (optimum) 100 mm long top-loaded monopole antenna

CNEVKIT04 - Enhanced CNE V+ comparison noise emitter kit

Parts included

  • CNE V+ noise source
  • TLM01 - 200 MHz to 1 GHz (optimum) 100 mm long top-loaded monopole antenna
  • TLM02 - 30 MHz to 300 MHz (optimum) 270 mm long top-loaded monopole antenna
  • MCN03 - 1 GHz to 3.5 GHz (optimum with CNE V+) monocone antenna
  • LSA03 - LISN adapter with IEC 320 style connector

All kits supplied with

  • Alkaline batteries
  • Hard case
  • CAL01 - 9 kHz to 5 GHz CNE V+ output power measurement using a spectrum analyser or receiver
  • Manual

Accessories

TLM01 - 200 MHz to 1 GHz (optimum) 100 mm top-loaded monopole antenna

TLM02 - 30 MHz to 300 MHz (optimum) 270 mm top-loaded monopole antenna

MCN03 - 1 GHz to 6 GHz (optimum) 120 mm diameter monocone antenna

LSA03 - LISN adapter with IEC 320 style connector

NIA01 - ISN adapter with RJ11/RJ14/RJ25/RJ45 style connection

MON02 - Telescopic rod antenna



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