Waited 3 hours for B-64 to reach me from central Ireland yesterday. Just got my first green decode when a strong fm signal kept coming up on 434.5 wiping B-64 out. Pretty weird at first as I had 3 stations in qso at strength 59. One in Canada (VE6GFZ), one in USA (WA1ORB) and another in Birmingham (M6BRU)
However, after chatting to the guys on the Freenode.net, realised I was picking up a local Echolink Node that was transmitting on 434.525. Eventually these guys went qrt and I managed a few more green decodes.
First screenshot shows the node signal. As you see, no chance of picking up B-64 through that..