3398.100 MHz contact with VK2KYP

on 25th July 2019, whilst I was portable up the back of Porcupine Hill near Jenolan Caves, in QF46xe, I worked Gary VK2KYP  firstly on 1296.100 Mhz USB, who was portable at Somersby, (QF56pp) near the FM broadcast tower, across to me portable at Jenolan Cabins, signals were 57, then we followed that contact with a 9cm contact on 3398.100 MHz USB, both of us using GARC 3.4GHz panels,  running 100mW each way, the distance was approx 131km, it was exciting for us as we broken the 100km hurdle,  even though VK3's have done much better, we thought it significant  since we both running QRP and simple panel antennas. Signals were in the order of 50/51, we also tried FM, we could detect  and hear each other, but not strong enough for a successful contact.