[Elecraft] USB to Serial Plus 1500 watts

[Don Wilhelm]

Lee,

Everything may be grounded, but that is a safety ground, and it 
certainly cannot be relied on for an RF ground.  It sounds like things 
in your shack are hot with RF.  The place to correct that is at the 
antennas - the feedline should not be carrying common mode RF into the 
shack - i.e. all the RF flowing on the feedlines should be balanced and 
no radiation should occur.  That should be true for both coax and 
balanced line.

To repeat, if you have RF in the shack problems, get the RF balanced at 
the antenna feedpoint, and if the feedline is coax, use an effective 
balun to keep the common mode current off the outside of the coax.

73,
Don W3FPR

Lee Buller wrote:
> Ok guys....
>
> Everything is grounded....but when you are pushing legal limit power in a contest, I have blown up my USB to Serial Converter.  It just doesn't work after the RF does its magic to it.  That is why I went to a serial connection.  So, what have people experienced with their USB Converters when running the big amp?
>
> Lee - K0WA
>   
>