emonTH aerial replacement

Hi all, my son cut off the aerial wire inside one of my emonTHs. To replace it, how long should the wire be and where do I need to solder it to? Thanks :slight_smile:

It should be a quarter wavelength, 165 mm.
The pictures here EmonTH v2 Install — OpenEnergyMonitor 0.0.1 documentation show where it’s connected.

What are you going to cut off of your son’s? :roll_eyes: