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Emission Reference Sources
 

Laplace Logo 

Made in the UK

  Emission Reference Sources

Emission Reference Source (30MHz - 1GHz)

Emission Reference Source (10MHz - 3.5GHz)


 Laplace Emission Reference Source (30 MHz to 1 GHz) NPL & NIST Traceable

Laplace

Model ERS

 

30MHz to 1.0GHz

 

2MHz Steps

 Emission Reference Source

 

Laplace Emission Reference Source

 

Laplace ERS

 

 

Data

A Small self contained RF radiator which generates a known measured field strength at standard measurement distances. Enables emission measurement to be correlated against a true open field site condition.

 

Antenna - ERS distance:

3m

Polarisation:

vertical and horizontal

ERS height:

0.8m

Antenna height:

Scanned 1m to 4 m


ERS
is a portable self-contained RF comb generator that produces waveforms from 30MHz to 1GHz in 2MHz steps. 

ERS has top-loaded broadband monopole antenna allowing vertical and horizontal polarization test.

The ONLY Calibrated Reference Source on the market today

National Physics Laboratory (NPL) calibration

Calibration data included

Obtain a true end-to-end calibration including site conditions and analyzer.

Allows the user to obtain realistic measurements in indoor test sites.

Built-in monopole radiator.

Rechargeable battery (charger is included)

Direct output to BNC connector.

The ERS helps to eliminate the main cause of uncertainty (error) when measuring radiated emissions. These errors are entirely due to the reflections from any nearby metallic objects or surfaces. Also, the ground reflection is a source of error if not using a metallic ground plane and height scanning. Generally, these reflections will account for errors up to 20dB, far too much for compliance measurements.

By replacing the EUT with the ERS, performing a scan and comparing the results with the calibration data, the errors can be quantified and the results from the EUT adjusted accordingly.  This technique genarally reduces errors to around 6dB, comparable with test laboratory results.

 

Calibration traceable to NPL

 

Obtain a true end-to-end calibration including site conditions and analyzer

 

Allows the user to obtain realistic measurements in indoor test sites

 

Built in monopole radiator

 

Broadband output covering the range 30MHz to 1GHz

 

Direct output to BNC socket

ERS
Typical calibration plot showing harmonic peak values against a linear frequency axis.

Both standard and low output versions are given.

 

Cal plot of ERS and ERS-2


Laplace

Model ERS-2

A low output version of the ERS with a field strength (at 3m) between 30 and 50dBuV/m (The equivalent figures for the standard version are 50-70BuV/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.


 Laplace Emission Reference Source (10 MHz to 3.5 GHz) NPL & NIST Traceable

Laplace

Model 10.3G

 

10MHz to 3.5GHz

 

10MHz or 50MHz Steps

 Emission Reference Source

 

EMC10.3G

 

 

Data

Model

EMC10.3

Frequency Range (MHZ):

10 - 3500

Harmonic Spacing:

10 MHZ & 50 MHz
(Switchable)

Frequency Stability (ppm):

100

Radiant field polarization:

Vertical

RF level at 3m (dBuV/m):

40 -80

Battery type:

6LR61 9v (PP3)

Battery life before charging:

8 hours

Size with Antenna (mm):

144 x 72 x 135

Weight:

0.2 Kg

Control:

On/Off Harmonic switch, local and remote

Option: Model EMC10.3G/RC

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

 

Calibration traceable to NPL

 

Obtain a true end-to-end calibration including site conditions and analyzer

 

Allows the user to obtain realistic measurements in indoor test sites

 

Ultra-stable emission level with traceable calibration

 

Broadband output covering the range 30MHz to 3GHz

 

Direct output to BNC socket

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

Cal plot EMC10.3G



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An Electro Mechanical Research and Development (EMRAD) Corporation, Company

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