is this a standard jack that I can plug any ol' set of headphone
into, or is it a special size that I need to buy one of their
accessories for?
Also, I haven't seen it posted here but on the RailScan list I was
pointed to a Ham selling a much better SMA-BNC adapter than you find
with the radio. The rubber housing should support it and make it much
more sturdy than the thin metal ones they sell with the radio. Just
thought I'd pass this along since many people here will be using an
adapter :)