Product Detail

Emissions Reference Source
 

Take the guesswork out of radiated emissions measurements upto 3GHz

Small, self contained emitters which generate a known, measured field strength at a standard measurement distance. These sources ensure measurement integrity and reduce measurement uncertainty.

	Obtain true end - to - end calibration, including site conditions, antenna and receiver.
	Frequency range from 30MHz to 3 GHz.
	Ultra-stable emission level with traceable calibration.
	Reduce Measurement Errors by correlation between the results on your site and the calibration data supplied with these sources, errors due to the site distortions and instrument error are quantified and can be compensated.
	Site flexibility if your site is somewhat "less than ideal" then these sources compensate for the unwanted reflections, lack of ground plane and any other influences that may reduce the result integrity.
	Self contained, these units are shipped complete with antenna, battery, charger and calibration data. Their small size make them ideal for spot checks and enclosure screening trials.

The range comprises two, the ERS and the EMC10.3G. Each radiate a known RF field strength and are supplied with calibration data measured at 3 metres. Their output is in the form of a closely spaced harmonic series which provides a continuous, narrowband signal covering the whole range. Measurements of these signals are unaffected by receiver RBW of detector type, reducing the possibility of error and ensuring a highly stable result. A key application for these sources is the measurement of test site characteristics so that non-compliant sites can be corrected.

EMC10.3G
Typical calibration plots for 10MHz and 50MHz harmonic spacing shown with log frequency axis.

ERS
Typical calibration plot showing harmonic peak values against a linear frequency axis. Both standard and low output versions are given.

Long term monitoring of annual calibration results over the past 6 years have shown that these sources have exceptional long term stability, with changes less than the measurement uncertainty of the calibration process.

Options

ERS-2: A low output version of the ERS with a field strength (at 3m) between 30 and 50 dBuV/m ( the equivalent figures for the standard version are 50-70 dBuV/m. This lower output makes the ERS-2 ideal for use in test cells and chambers and other enclosed spaces, avoiding the tendency to overload the instrumentation.

EMC10.3G/RC: A remote control unit which connects to the 10.3G source by optic fibre and enables on/off and harmonic spacing selection without entering the test area or chamber.

Specifications

Model	ERS		EMC10.3
Frequency Range (MHZ):	30 -1000		10 - 3500
Harmonic spacing:	2 MHz		10 MHZ & 50 MHz (Switchable)
Frequency Stability (ppm):	90		100
Radiant field polarisation:	Vertical & Horizontal		Vertical
RF level at 3m (dBuV/m):	Std	50 -70	40 -80
	ERS-2	30 -50
Battery type:	Custom rechargeable		6LR61 9v (PP3)
Battery life before charging:	4 hours		8 hours
Size with Antenna (mm):	120 x 64 x 188		144 x 72 x 135
Weight:	1.5 Kg		0.2 Kg
Control:	On/Off only		On/Off Harmonic switch, local and remote

 

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Revised: June 29, 2004
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