[RFI] In house RFI, but

Roger (K8RI) k8ri at rogerhalstead.com
Mon Jun 25 20:52:45 PDT 2012

On 6/24/2012 10:38 PM, Charlie Gallo wrote:
> Hi Gang,
> Yesterday, when a friend came over for FD, we decided to try and chase down some of the nouse issues at my QTH.  Well, we found some nasty noise that turned off with circuit breaker 18 in my house.  OK, not problem right?  Wrong, because other than 2 lightbulbs (incandescent) and 2 outlets that have nothing plugged in, I can't FIND anything on circuit 18!!  I KNOW, there MUST be more - and that I'm missing something, but like a LOT of old houses, I really have NO idea exactly what is on circuit 18
> Is there any way to track RFI inside the house to a closer location than using my ham rig with outside antenna?

Yes.  I'm not familiar with it, but I've seen a device that puts a low 
level signal onto a circuit.  Then the circuit can be traced using a 
probe.  It can show the route within inches from one end to the other as 
well as branches.  That is the total sum of my knowledge of that device.


Roger (K8RI)
> BTW, the kitchen renovation installed some of those new under cabinet LED lights - boy they are BAD - but no idea where the power supplies are - my thing - leave them OFF when on the air

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