[RFI] Strong hash now gone, but where and why?

[Roger (K8RI)]

555 Years?  I should live so long<sigh> That's what 55 years turns into 
when you have shaky hands

73,  Roger (K8RI)

On 2/15/2017 12:35 AM, Roger (K8RI) wrote:
> Many times I've remarked about not having RFI in 555 years as a ham. 
> That came to a screeching halt around last spring with a tremendous 
> noise.  Previously I had been listening with no RFI. I had what I 
> thought was a grounding problem in the shop. WD8BPT tightened both 
> neutrals, but they were almost as tight as we could get them.
>
> I thought I'd just use the rig in the house but that noise, typical of 
> switching supplies made 160 - 40 unusable.  Then Dennis (WD8BPT) 
> suggested getting a good antenna for most of the bands in case we 
> didn't get the LM470 and C19XR in operation before the weather turned 
> bad. Sooo...I hooked the system to the AV640.
>
> Back to the noise problem. I had discovered the pure sin-wave line 
> conditioner was the worst generator and I'd work on it, time 
> permitting.  I turned on the rig and all was quiet where I had close 
> to S9 noise previously with the line conditioner off. I fired up the 
> line conditioner and no noise, where a few months earlier turning it 
> on produced a tremendous noise.
>
> This leaves me a bit puzzled, but the noise MAY be due to a poor 
> neutral in the house.  I need to get someone locally to tighten up 
> those connections.
>
> The feeds for the house and shop do come from the same pole pig. The 
> only difference I can think of is there are no rigs in the shop at 
> present.
>
> 73, Roger (K8RI)
>
>
>
>
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