Recently I have noticed a quite new system active along the spectrum (4 MHz, 6MHz, 8MHz, 12MHz & 18MHz these days)
The net using that one seems to use a slow Frequency Hopping ? or just a Frequency Agility behaviour ?
Bursts are 310ms long, br: 1500Bd, bw: 1800Hz, 4-ary mod
22586.0 CF unid net - digimode trials, 1500Bd QPSK, using various bandwidth (500Hz to ~20kHz), bursts of 800ms approx, coming from the north of my QTH 15/03/2015 19:00:05