Topband: HVDC

[Tom W8JI]

> Through the center part of Illinois they have begun work at the government 
> level to install a 690,000 VDC power line As with all this there is huge 
> amount of opposition an even groups trying to ban it
>
> Does anyone have any experience with a line of such high VDC as a noise 
> source ? It will pass within 3/4 of a mile south of my QTH
>
>
>
> I am really concerned my only hope if this goes thru is to pull up stakes 
> an move rather than attempt to fight its noise
>
> Any thoughts

I think people are being silly.

Not only has there never been any evidence (beyond some fraudulent thing 
that created hysteria) that power lines ever cause health problems,  a dc 
line has much less radiation.

As far as Ham radio, a dc is far less problematic for noise.  690 kV dc is 
like 487 kV ac, except the line doesn't have the charging and discharging 
issues that generate a lot of noise in bad connections.

The only possible issues would be noise at the dc-to-ac converters, but they 
might be miles from you.

I wouldn't worry, and I would not support those who worry about other issues 
like safety or health.

73 Tom