York | Comparison Noise Emitter (CNE)

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.

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

Eurofins York Noise Emitter (150 KHz to 1 GHz)
The Comparison Noise Emitter V Model CNEV 9KHz to 1GHz	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)
The Comparison Noise Emitter V+ Model CNEV+ 9KHz to 3.5GHz (usable to 5GHz)	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

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

All kits supplied with

Eurofins York Noise Emitter (150 KHz to 1 GHz)

Eurofins York Noise Emitter (9 KHz to 5 GHz)