[RFI] RFI In My Shack

Dave Cole (NK7Z) dave at nk7z.net
Sat Dec 2 12:49:26 EST 2017


Let me guess, you are using an Off Center fed dipole, or some sort of 
asymmetrical antenna  If not what is your transmit setup.

73s and thanks,
Dave
NK7Z
http://www.nk7z.net

On 12/02/2017 09:25 AM, Joe wrote:
> A little different question.  Perhaps some suggestions here:
> 
> I have a new amplifier in the shack, a Drake L7, that is being used in place
> of a European version of the Henry 2K D Classic.
> 
> The Henry ripped the shreds out my sound system's sub-woofer, both in the
> Home theater room and in the den.
> 
> I collect and restore Drake equipment and acquired this L7 amplifier with a
> modified power supply.  (Has a Peter Dahl transformer that outputs 3600
> volts, instead of 2600.
> 
> In any case, the Henry has never affected anything else in the house.
> 
> The L7, however, is another story.  It is 'clean' in the shack:  I.E.: No RF
> in the shack.
> 
> But, somehow it is getting RF into the network, via the net cable, and it is
> smoking the net board in my HP, all-in-one color laser printer.  I have had
> to replace the net board already as the RF is literally shorting out
> components on the board.  Fortunately, the board is inexpensive, but a bit
> of a bother to replace it.
> 
> My question to the group:  Is there any way to filter/stop/shield the
> network cabling from RF, to keep it from getting into the printer?
> 
> Thanks in advance.
> 
> Joe - W7RKN
> 
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