[TowerTalk] High voltage transmission lines

[Mike, K6BR]

Steve,

I and many other gave you one piece of sound advice that is the most
important. Take a mobile rig and drive around the area you intend to settle
in and check out all frequencies you would want to operate on day and night
etc. If you have the time before deciding on the purchase pick wet day's dry
days and different times of the year.  It is almost worth the investment in
a FT-857 and Screwdriver antenna.

I drive around a lot for my work and often see the QTH from heaven but only
to be disappointed by noise or weak signal reception.  The weak signal
locations are another issue but they do exist, I don't know why, but there
are certainly hot spots around where the signal in the mobile jumps up 2 or
3 S points in some places.

Good luck in your new Ham shack hunting:-)

Mike K6BR 

-----Original Message-----


Thanks to all for the many responses and advice.

Sounds like the wise course of action for me is to not consider the home 
site in question with its two nearby high voltage transmission power lines.

Glad I asked the question. :-)

Thank you and 73,

Steve K8JQ

Paul Kelley N1BUG wrote:
> Steve,
>
> If it were me I would scratch that home site off my list. But if you 
> really want to settle there, at least drive around with a mobile rig 
> and listen to all bands of interest before you purchase. Do this 
> under various weather conditions.
>
> I live near a 46 kV line. For many years I had noise from it on all 
> bands. It was S9+ 24/7 on 160 and 80m. Eventually they had to do 
> major maintenance on the line to keep it operational, and for a time 
> most of the noise went away.
>
> Last winter it started acting up again. On cold nights I would get 
> S9+60 noise on 160 meters from a problem on the line more than 7 
> miles from my home. The problem was (is) 7 miles away but the noise 
> rides the line which passes within a few hundred feet of my 
> antennas. The noise was progressively weaker on higher bands but 
> effectively prevented any operation on cold nights.
>
> Things may be different where you live but here there is essentially 
> zero chance of getting problems like this corrected.
>
> 73,
> Paul N1BUG
>
>
> Steve wrote:
>   
>> A possible home site I'm looking at is situated between two high voltage 
>> transmission lines. The two transmission lines run roughly east-west and 
>> are approximately parallel to each other.
>>
>> The transmission line to the south of the home site is 138KV and is 
>> several decades in age. It is about 1300ft from the home site to the
line.
>>
>> The transmission line to the north is either 345KV or 765KV (I received 
>> conflicting information) and was constructed in the 1990's. It is about 
>> 800ft distant from the home site.
>>
>> Are high voltage transmission lines at the distances noted a source of 
>> noise in receivers in the 160 through 6 meter bands? I have dreams of 
>> wire antennas, verticals and beverages for 160 and 80 meters. And wire 
>> antennas and beams for 40 through 6 meters.
>>
>> Anyone live within 800 to 1300 feet of these lines with experience to 
>> share regarding their effects on 160 through 6 meter operations?
>>
>> Thanks.
>>
>> Steve K8JQ
>>     
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