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The Tecton Darlex Video Recorder goes through a shocking testing process.

London Underground transit system puts Tecton's equipment for the test.

The Tecton Darlex video recorder has just passed some very tough London Underground, EMC tests. These tests required immunity to radiated signals 10X greater than most test houses have ever needed to generate. They had to hire in special equipment !

In a nutshell you can sit in front of our recorders and :

* use your mobile phone, ( as engineers often do )

* fry yourself with your tetra radio

* make large sparks from underneath an underground train.

... and RECORDING will still continue without interruption.

More formal details follow for the EMC enthusiasts amongst you.

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For emissions, compliance with EN 61000-6-3:2007 is required.

For immunity, compliance with the product family standard, EN 50130-4:1995 + Amendment A1:1998 + Amendment A2:2003 is required, along with LU specific EMC requirements detailed in the LU Cat 1 EMC standard 1-222 and supporting Manual of EMC Best Practice G-222.

The additional LU requirements mainly relate to radiated immunity tests see below, but generally necessitate more stringent test levels to be applied with respect to other immunity tests.

Testing must be undertaken against the latest version of all standards called up by EN 50130-4 and against the most onerous test level where conflict exists between EN 50130-4 and G-222.

LU Radiated Immunity requirements as per EN 50130-4 and EN 61000-4-3:

20 V/m, 80MHz - 1GHz, AM (80% 1kHz) and PM (1Hz 0.5s on 0.5s off)

10V/m, 1GHz - 2GHz, AM (80% 1kHz) and PM (1Hz 0.5s on 0.5s off)

30V/m, 383MHz 395MHz PM (17Hz 50% duty cycle)

30V/m, 900MHz 901MHz, AM (80% 1kHz)

30V/m, 1.710GHz - 1.784GHz, AM (80% 1kHz)

30V/m, 1.880GHz - 1.960GHz, AM (80% 1kHz)

30V/m, 2.010 GHz - 2.025GHz, AM (80% 1kHz)

30V/m, 2.110GHz - 2.179GHz, AM (80% 1kHz)