This evening G3WKW and I are trying to span 134km on 28MHz WSPR. I run 2W to a vertical and Bob runs a little more. Despite Doppler and rig drift problems we managed the path (just) on 144MHz this week. 28MHz may be much weaker but with far less Doppler and rig drift. We shall see. With WSPR about 12-14dB better than CW we have the best chance.
UPDATE 2200z: Nothing at all seen since 1816 (USA) and 1824z (Es). Will keep looking but not hopeful. No GDX seen at all.