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EMI / EMC testing OpenEVSE

Hi,
I am after some help/clarification about how EmonEVSE solved the EMC issues;

  • Is it conducted or radiated emissions (or both?) that are the issues with the standard OpenEVSE controller?

  • Was it solved purely by adding the AC filter shown in github? (GitHub - openenergymonitor/openevse-ac-filter-pcb: 240V AC filter for OpenEVSE Controller)

  • Can someone confirm that the AC filter BOM includes: 1 x 47uH choke (RN114-0.3-02-47M), a 10nF capacitor on the source side, and a 10nF capacitor on the load side? (the PCB files in github say the source side is a 1F cap, which surely can’t be right)

  • I note that there is no capacitor coupling to ground on the circuit above, does this mean the problem was just differential mode noise?

  • Can someone confirm it is installed purely on the AC input wires to the OpenEVSE controller? (the choke is obviously not rated to handle the whole charging current)

Many thanks!
Lawrence