[TangerineSDR] may have spoken too soon

[David Witten]

Jules,

Very interesting!

I'm curious what effect we might see burying the sensor completely, say
below the frostline:

Frostline Map <https://www.hammerpedia.com/frost-line-map/>

This would make deployment more difficult, but would surely provide
significant stability.

But what does it do to magnetic field lines?  - one more experiment that I
would like to try sometime: place several sensors in a vertical column at,
say 500 cm intervals in a fairly uniform deposit of soil.

Seismic interaction is something I hadn't considered.

Dave


On Wed, Aug 12, 2020 at 1:21 PM Julius Madey <hillfox at fairpoint.net> wrote:

> Dave,
> Did a 13 hour run from 2300edt yesterday to noon today and then started a
> second run to complete 24 hours.  Seeing a slight 0.3 degree upward shift
> in temp over the 13 hours.  The sensor results are not flat line and still
> show some drift with an initial relatively rapid change after starting the
> run ... have to see if the same thing happens on the run in progress now.
> Some activity around 0400edt to 0900edt which I can't explain as magnetic
> field shifts, at least according to the data from Intermag.  Might be
> seismic activity related as any movement of the sensor could also create a
> 'signal' in the low nT range  (~50nT).
> Jules
>
>
> On 8/12/2020 10:26 AM, David Witten wrote:
>
> Jules,
>
> I will look closely at this when I get back from my appointment this am.
> THere are definitely some untested 'features' here.
>
> Dave
>
> On Tue, Aug 11, 2020 at 9:49 PM Julius Madey <hillfox at fairpoint.net>
> wrote:
>
>> Dave,
>> I think we're OK   operator error here with parameter formats ....
>> Sorry for the false alarm
>> Jules
>>
>>
>
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