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CNE VI

Comparison Noise Emitter VI


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The image shown is of a CNEVI (CNE6)

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  • Continuous broadband output
  • Stable output
  • 30 Hz to 6 GHz output
  • Compact and portable
  • Battery powered
  • Low cost

 

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CNE VI Product Information

Test Instrumentation Range Brochure

Description

The 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.

Features

Continuous, broadband output•  Full spectrum measurements and analysis 
Stable output•  Repeatable measurements 
Conducted and radiated options•  Evaluation of both conducted and radiated systems 
30 Hz to 6 GHz output•  Applications across a broad range of frequencies 
Compact and portable•  Comparisons between sites and environments 
Battery powered•  No power or interconnecting cables affecting measurements 

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•  <1 dB typical 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 N-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•  <1 dB typical 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

Part Number

Description

Parts included

CNEVIKIT01Standard CNE VI comparison•  CNE VI noise source
 noise emitter kit•  MON03 - 200 MHz to 1 GHz (optimum) 270mm
  •  long monopole antenna
  •  LSA03 - LISN adapter with IEC 320 style connector
   
CNEVIKIT02Enhanced CNE VI comparison•  As per CNEVIKIT01, plus:
 noise emitter kit•  TLM02 - 30 MHz - 300 MHz (optimum) 270 mm long top-loaded monopole antenna
  •  MCN03 - 1 GHz to 6 GHz (optimum) monocone antenna

All kits are 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

TLM01200 MHz to 1 GHz (optimum) 100 mm long top-loaded monopole antenna
TLM0230 MHz to 300 MHz (optimum) 270 mm long top-loaded monopole antenna
MCN031 to 6 GHz (optimum) 120 mm diameter monocone antenna
MON02Telescopic rod antenna
MON03200 MHz to 1 GHz (optimum) 270 mm long monopole antenna
LSA03LISN adapter with IEC 320 style connector
NIA01ISN adapter with RJ11/RJ14/RJ25/RJ45 connector

 

Manufacturer's Calibrations

CAL02 Radiated field strength, 30 MHz to 1 GHz, measured at 3 m OR 10 m on an OATS using a spectrum analyser or receiver
CAL04 Radiated field strength, 30 MHz to 1 GHz, measured at 3 m AND 10m on an OATS using a spectrum analyser or receiver
CAL06 Radiated field strength, 30 MHz to1 GHz, measured at 3 m in a FAR using a spectrum analyser or receiver
CAL07 Radiated field strength, 1 to 7 GHz, measured at 3 m in a FAR using a spectrum analyser or receiver
CAL20 Conducted output power, 30 Hz to 6 GHz, measured using a spectrum analyser

 Typical Output Measurement Results

CNEVI Graph 1 Conducted 1kHz
CNEVI Graph 2 Conducted 30MHz

CNEVI Graph 3 Conducted 1GHz

CNEVI Graph 4 Conducted 6GHz

CNEVI Graph 5 Radiated MON03

CNEVI Graph 6 Radiated MCN03

ABOUT US

A wholly owned subsidiary of the University of York, we have been successfully delivering EMC training courses, designing and selling test instrumentation for over 20 years.

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York EMC Services Ltd
Market Square
University of York
Heslington
York
YO10 5DD

Tel: +44 (0) 1904 324440
Fax: +44 (0) 1904 324434
Email: enquiry@yorkemc.co.uk
Website: www.yorkemc.co.uk