Radiated Emissions

The CNE III is a broadband noise source which provides continuous output power from 9kHz to 2GHz. 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 three monopole antennas, optimized for different bands of the spectrum, are available which attach to the top of the unit. The CNE III is an ideal source for carrying out checks on open area test sites (OATS) and anechoic chambers.

The CNE III is battery powered to allow operation as an electrically small source which minimizes the effect of the structure of the CNE III itself when characterizing the electromagnetic environment. Conversely, if desired, cables may be attached to the earth stud or the RF output to allow characterization and investigation of the effects of changes in the wiring layout on measurements. The CNE III 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 III 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.

Specifications
Frequency Range	9kHz to 2GHz direct connection into a 50Ω system
	30MHz to 2GHz radiated using TLM01, TLM02, MON01 antennas
Output connector	50Ω BNC socket
Temperature stability 15°C to 35°C	<1dB up to 1.5GHz
	<2dB up to 2GHz
Time stability	Typically <1dB over a 12 month period
Power off timer	Continuous operation or variable between 15 and 135 minutes in 15-minute steps.
Dimensions	206mm × 120mm × 80mm (excluding antenna)
Weight	1.3kg (excluding battery)
Power supply	4 × C-type cells. Alkaline or rechargeable
Operating time	12 hours typical with alkaline cells
Indicators	Power on - green LED

Typical power output into 50 Ohms

Radiated Emissions

The CNE V is a broadband noise source which provides continuous output power from 150kHz 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.

Specifications
Frequency Range	150kHz to 1GHz direct connection into a 50Ω system
	30MHz to 1GHz radiated using TLM01 and TLM02 antennas
Output connector	50Ω BNC socket
Temperature stability	5°C to 45°C <1dB
Time stability	Typically <1dB over a 12 month period
Dimensions	120mm × 120mm × 41mm excluding antenna
Weight	0.53kg (excluding battery)
Power supply	1 × 9V battery (PP3 or equivalent). Alkaline or rechargeable
Operating time	5 hours typical with alkaline cells
Indicators	Power on - green LED
	Power off - red LED

Standard Order Kits

Part Number	Description	Parts Included
CNEVKIT01	Standard CNE V comparison continuous noise emitter kit with antenna	CNE V noise source TLM01 - 200MHz to 1GHz (optimum) 100mm long top-loaded monopole antenna Alkaline battery Hard case CAL03 standard test results
CNEVKIT02	Enhanced CNE V comparison noise emitter kit with multiple antennas and LISN adaptor	CNE V noise source TLM01 - 200MHz to 1GHz (optimum) 100mm long top-loaded monopole antenna TLM02 - 30MHz to 300MHz (optimum) 290mm long top-loaded monopole antenna LSA02 - LISN adapter with IEC-style connection Alkaline battery Hard case CAL03 standard test results

Accessories

Accessory	Part Number	Description
Antenna	TLM01	200MHz to 1GHz (optimum) 100mm long top-loaded monopole
	TLM02	30MHz to 300MHz (optimum) 290mm long top-loaded monopole
Direct coupler	LSA02	LISN adapter with IEC-style connection

Typical Output Measurement Results

Standard Order Kits

Part Number	Description	Parts Included
CNEVIIKIT01	Standard CNE VII comparison continuous noise emitter kit with integral antenna and battery charger	CNE VII noise source BPK01 rechargeable battery pack Universal input battery charger Hard case CAL07 standard test results

Accessories

Accessory	Part Number	Description
Battery Pack	BPK01	8V, 5AHr battery pack

Output Measurement Results

Type	Order Number	Description
Radiated Output	CAL07	1GHz to 7GHz horizontal and vertical polarization electric field strength in FAR using a spectrum analyzer at 3m

Typical Output Measurement Results