[RTTY] RFI problem

[Andrei Nevis]

Don, put MORE Toroids, that what I did , every where, on each cable from both ends.
  Power supply as well, every cable I covered with toroids, now my Gateway is OK.
  73's Andrei EW1AR-NP3D

W5FKX - Don <w5fkx at cox.net> wrote:
  Over the last couple of days, I had the opportunity to try out my new 
Gateway laptop during a quick portable operation during a trip, only to find 
that I had a big problem. I used my usual portable equipment, consisting of 
an IC-706MkII, Rascal interface, and MMTTY running on the laptop. Of course, 
the new laptop did not have a serial port (as did my old one), so I used a 
serial-to-USB adapter to control TX/RX. Despite toroids on the lines coming 
into the laptop, after the first transmission it was apparent that RF was 
getting into the computer, as my touch-pad would not allow tap-clicking, 
followed by a complete lock-up (I had to remove the battery to shut it off).

This was my first attempt to use a serial-USB converter, so I disconnected 
it and, after re-booting, was able to TX/RX manually. This is NOT what I'd 
like to do!

Any suggestions? ... other than pitching the laptop ... :-)

Don W5FKX
Delta DX Association
http://www.qsl.net/ddxa 


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