https://www.dianomi.com/click.epl?pn=140758&offer=36114468&savid=364328&can_cookie=1&unique_id=aPHiB7UVOutYTAqjaxpBlQAAAB8&adv=75916&said=71495&cf=456.3057.Hotcopper&smartreferer=https%3A%2F%2Fwww.hotcopper.com.au%2Fthreads%2Ftechnical-signals-go-green.7243386%2Fpage-1784%3Fpost_id%3D80472628