[hpsdr] Mercury Spurious Emissions

[Erik Anderson]

I acknowledge that my poorly-grounded station is even more poorly grounded
than I thought.  I think I was referencing the "ground" connection of the
battery as being completely unrelated to anything signal-ground-ish.  On the
positive side, I think I discovered a ground stake outside under the
telephone box I may try to use (unless it's been contaminated by say
everything currently plugged into my house)

As for apertures, I'm seeing the ventilation holes are ~38mm and the slots
are ~114mm, which offhand seem like they would strongly attenuate any
signals passing through a properly-grounded shield, but then again I'm
getting most of my information from google, so this link of
(mis?)information is probably the last piece I intend to contribute to this
thread: http://www.eetasia.com/ARTICLES/2000DEC/2000DEC01_RFD_ID_TA.PDF<http://www.eetasia.com/ARTICLES/2000DEC/2000DEC01_RFD_ID_TA.PDF?SOURCES=DOWNLOAD>

On Sun, Sep 11, 2011 at 8:43 PM, Luke Steele <mail10 at barefoothorse.com.au>wrote:

> ***** High Performance Software Defined Radio Discussion List *****
>
>
> At 07:56 PM 11/09/2011 -0700, Erik Anderson wrote:
>
> ***** High Performance Software Defined Radio Discussion List *****
> I can't really comment because I run on batteries
>
>
>
> Running on batteries, grid electricity, wind power, genset, or a
> thermonuclear power plant will make no difference to the RF issues being
> discussed.
>
> Just listen on air, or trawl the WWW to find plenty of good and bad
> information on "Earthing Your Station".
> RF ground, lightning discharge, and safety ground are slightly different.
> One website with some good info is Owen's VK1OD.
> http://vk1od.net/
> There's a search field to assist you in finding what you want in Owen's
> extensive info.
>
> In my station I run an aluminium strap behind the desk with all equipment
> ground terminals connected with a short wire. The strap runs outside to an
> earth stake under the verandah gutter down pipe where it is nearly always
> wet, and several counterpoise wires laid on the ground, and it is also
> connected to one of the earth radial system wires for my vertical antenna 25
> metres away. This seems to work for me!
>
> I don't seem to have any troublesome "RF issues in the shack". All my
> signal and control lines are in shielded cable.
>
> Regards,
> Luke VK3HJ
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