Gps Inaccuracy Under High-tension Powerlines

[+archaeor]

I just placed a cache directly beneath about a zillion volts of high-tension powerlines, you know, the ones that stretch for miles across the country, suspended from tall metal towers . . . the ones that emit a 'buzzing' sound and fry raptors.

 

Anyway, I got good (read the exact same) GPS readings three times at the cache location. I'm concerned though, that since this cache requires a fairly strenuous hike with a vertical climb of over 1000 feet, that finders may get inaccurate reading beneath the powerlines due to magnetic fields, etc. (like your AM radio does). I want finders to be able to find this one without a lot of trouble due to the hike.

 

Anybody ever have a problem locating a cache underneath high-tension powerlines? (please don't say Yes, so I have to climb all the way up there to move it )

 

Thanks,

 

Rick

[+Beta Test]

Not me.

[+Team Perks]

In theory, EM fields could interfere with GPS reception. I've never seen a problem where I lose accuracy due to overhead power lines.

[+rusty_tlc]

GPS operates on a 1575.42 Mega hertz carrier. I kind of doubt that 60 hertz would be a problem. All receivers use filters to screen out unwanted frequencies, your GPS is no different.

[+The Geocache Hunter]

I don't think getting a signal would be a problem but I am a little leery about being near powerlines like that since I took a florescent bulb out to one and it lit up in my hands. Thats a lot of energy just floating about.

[gm100guy]

Check out this link about power lines

 

[+flask]

i have both seen and used the excuse about powerlines.

 

i think it's just code for 'i had a hard time finding it".