Re: LF: Earth-mode or not earth-mode

[Roger Lapthorn <rogerlapthorn@gmail.com>]

Gas pipes are non-metallic I think? 

Not sure I like the idea of connecting many watts of VLF power into high 
voltage pylons or gas pipes. In the UK we would be locked up as suspected 
terrorists!

Having a few watts VLF piggyback a water pipe connected to my central heating 
radiators sounds as if it should be more legitimate. After all,  we use such 
connections often as the ground systems for verticals.

This raises the question about the legality of putting VLF signals along 
utilities - is this actually permitted? After all, there are intercoms and data 
systems that intentionally use the mains electricity wiring. Anyone know what 
IS permitted?

73s
Roger

Via my 2.4GHz handheld (iPod Touch 4g)

On 4 Feb 2011, at 23:10, Stefan Schäfer <schaefer@iup.uni-heidelberg.de> wrote:

> Jacek,
> 
> Am 04.02.2011 23:58, schrieb Jacek Lipkowski:
>> 
>> btw. i have an international gas pipeline nearby: 
>> http://en.wikipedia.org/wiki/Yamal%E2%80%93Europe_pipeline
>> opportunity for dx maybe? :)
> 
> At least it would be a good radial for a VLF antenna ;-) Dou you think there 
> is a conductive (metallic) contact up to north Russia? Would be interesting 
> to do some tests there and maybe observe the same results as Roger.This would 
> be a nice antenna for ELF but i'm not sure if the gas provider would like 
> that DX was done on his pipeline ;-)
> 
> 73, Stefan
>