Topband: HVDC

[Bill Wichers]

Many electric company employees' are from families that have worked in the industry for several generations. If they worked in the plants they would be near hundred+ megawatt generators for decades. No one ever worried about it or saw problems. 

To the original poster: the large transmission lines are generally well built and well maintained since they are both very important to system integrity and revenue. It's unlikely you'll see any RFI problems from these lines. 

The HVDC conversion stations are usually thyristor based and operate at low frequency (not even 1 kHz) and then have massive low-pass filters to "smooth out" the sine wave they create. While I have no personal experience with these, I doubt you'd have much noise coming from them. ABB is a very large manufacturer of these systems and can probably provide you with information about their operation if you ask. 

-Bill KB8WYP

Sent from my iPad

> 
> I go to Radio Club meeting attended by many healthy 70, 80 and 90 year olds that have been sitting next to their rigs, amps and antennas since they were kids and are still healthy.
> 
> So I'm not too worried and magnetic fields and RF.
> 
> 73
> 
> Lloyd - N9LB
> 
> 
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