I killed my old
AIS with RF from my
SSB, since I relocated the
antenna which required the coax between
radio and tuner to run close by some other cabling (I have seen created greater separation and installed a bunch of ferrites).
That was a good excuse to upgrade to a new SOTDMA unit, so I bought an Em-Trek B951.
The unit I received, however, was DOA. The company, which is based in the UK, has tremendously responsive tech support. A very smart technician walked me quickly through a diagnostic procedure, then when it was clear we wouldn't be able to make it
work, immediately couriered me (by DHL) a new unit, which I received in just a couple of days.
Disappointing of course to receive a dead unit -- I wasted a lot of time trying to get it to
work. But nonetheless great
service.