Re: LF: Morning enhancements of DHO38

[Bill de Carle <ve2iq@magma.ca>]

At 10:21 AM 7/16/2011, Stefan wrote:

> >   The property here is surrounded by tall trees and I can't think 
> > of any easy way to get the probe above the treetops, away from 
> > powerline.  Perhaps a remote receiver, but that seems like a lot of effort.
> Maybe it works near the trees too. The signal level will be reduced, 
> anyway it might be OK as long as it is well above the soundcards 
> noise. On VLF this is easily done.
I found a good spot for the Mini-Whip - just above the roof of a 
garage about 100 feet from the shack.  Didn't want to damage the coax 
jacket so instead of grounding the shield DC-wise I wrapped a bunch 
of turns of solid copper house wire around it (about a foot along the 
coax) and grounded that (directly below the mini-whip).  Apparently 
the capacitive coupling is sufficient but your mileage may vary.
I'll let it run overnight updating the grabber.  Will replot the 
DHO38 SNR tomorrow.
Bill VE2IQ