[Elecraft] Noise, RFI ?

[Phil Wheeler]

Drat, you left out

4. Old-time Luddite ham operating a rotary spark 
gap rig :-)

73, Phil w7ox (No, I'm not *that* old -- quite!)

On 2/20/14, 10:25 AM, Phil Hystad wrote:
> Jim (and others)...
>
> >From all the suggestions of the RFI, these are those that rank on the top of the list but the list below is not ordered in any way.
>
> 1.  Some tool or machine operated by a neighbor or maybe even a construction/contractor guy working at a neighbor's house (really fits the use pattern of this interference).  Such ideas include electric arc welder.
>
> 2.  Nearby large Hospital & Medical center with the typical surrounding medical offices including several imaging offices.  The fact that I have never heard this interference before discounts this in my opinion.
>
> 3.  HV power line arc'ing or interference of some sort (there are HV towers and power lines about 500 yards from my QTH although never have I had any interference from them that I know of.
> 73, Jim K9YC
>
>