[TowerTalk] [Bulk] Re: modeling compare: 80M, 2EL vs 4SQ

[Grant Saviers]

I tried several different area of interest sizes (100x variation) and 
always get the error message.  Also, the conductivity data is 0.0 
decisiemens/m for all of the 6 soils types when the area is large (100's 
acres).  (maybe there is no resolution to mS/m?)

A further search for the conductivity data for the predominant soil type 
lead to more info but no conductivity data.
https://soilseries.sc.egov.usda.gov/OSD_Docs/A/ALDERWOOD.html

Grant KZ1W
Redmond, WA

On 3/16/2015 8:53 AM, W0MU Mike Fatchett wrote:
> Worked great for me.  I can see the house, etc.
>
> It says my soil is Sa and Fu.  I have not been able to determine what 
> those mean though.
>
> Mike W0MU
>
> On 3/16/2015 7:27 AM, StellarCAT wrote:
>> at the site zoom in to your area of interest using the map. You can 
>> rubber band an area until you get there.
>>
>> Then once there select the AOI rectangle (or odd shape) symbol above 
>> the map and select the specific area you're looking at.
>> Don't go TOO small - it will define what the soil types are over the 
>> whole region and give the specifics for each of these
>> (at least it will for some areas of the country - again it seems to 
>> provide it for where we use to be but not for where
>> we're going)...
>>
>> Then select from the Soil Data Explorer tab at the top ...
>>
>> then select Soil Properties and Qualities...
>>
>> then for Soil Chemical properties select its double down area button...
>>
>> and finally under this select "Electrical Conductivity".
>>
>> from here I've seen little variance in the responses - but I have 
>> tried selecting "Surface" vs.
>> "Depth Range" and ranges of 30 and 60 inches (select inches)... then 
>> select 'View Rating' below it.
>>
>> The ratings are given in a table under the map. The soil types are 
>> shown in the AOI on the map as
>> well as in the table.
>>
>> Gary
>>
>>
>>
>> -----Original Message----- From: Richard (Rick) Karlquist
>> Sent: Sunday, March 15, 2015 10:38 PM
>> To: StellarCAT ; n2ic at arrl.net ; tower
>> Subject: Re: [TowerTalk] modeling compare: 80M, 2EL vs 4SQ
>>
>> On 3/15/2015 5:16 PM, StellarCAT wrote:
>>> Hi Steve,
>>>
>>> I’ve searched and cannot find any info on South Carolina other than 
>>> that old map. It shows shows all of the area where I was as 8 mS.
>>> There is indeed soil there – farming is going on all around there. 
>>> And it shows the area in SC as 2.
>>>
>>> There’s a really nice site:
>>>
>>> http://websoilsurvey.sc.egov.usda.gov/App/WebSoilSurvey.aspx
>>>
>>> where I can go and indeed see that the soil where I was in AZ is 
>>> actually 100 mS (1 dS)! Not 8 but MUCH better. THAT I don’t know.
>>>
>>
>> I tried to browse this site, but it appears to have a huge learning
>> curve.  Since you have used it, could you give us the Reader's
>> Digest version?  Specifically, are you saying it gives RF conductivity
>> and permittivity?  Or DC conductivity?  Or does it just rate
>> soils for agricultural value?  Agriculture doesn't necessarily
>> correlate with radio.  My QTH has great radio characteristics but
>> is useless for farming.  Even weeds don't grow well.  Thanks in
>> advance.
>>
>> 73
>>
>> Rick N6RK
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