I'm not sure why the "official" temperatures are taken there like you said.

Airports have been local official wx measurements as far back as I know. The equipment is meant to be checked for accuracy one or twice a year and supposedly top of the line. Decades ago, airports were much smaller than what they are now (props vs jets, just for starters..), so perhaps the surrounding terrain wasn't as influential. Needless to say, AWOS's and ASOS's ain't cheap, nor is the upkeep and ensuring proper security, so siting them away from airports isn't cost-effective. My 2 cents.

Some very cool shots.

Chuck

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So this is the only inside photo of the 076b I’ve been able to find. It’s from the USCRN website. I’ve rode out to a nearby USCRN site nearby and I’ve been able to see the intake. As you describe, it looks like a multiplate assembly at the intake with two shields with offsetting holes to block incoming light. The two outer tubes for scrubbing make sense, but what I don’t quite understand is how the air flows into the inner tube with the actual sensor. From the photo it almost looks like there is another additional plate at the bottom of the inner tube, but it’s hard to tell. So the air flows through the 9 holes of the bottom plate, through a second plate with holes presumably at the center of the plate and then there is potentially a third plate just smaller than the diameter of the inner tube at the inner tube intake? Do you happen to recall?

Hi!

I had asked Ecowitt again about the soilad values and the, in my opinion, completely unnecessary permanent dispatch via custom server.
Here is the answer from Ecowitt:

Quote

The custom mode is calculated on gateway side, if people need to use the custom mode, these raw ad value is needed. So we included them in the package.

The calibration values are important - no question.
But I gain nothing at all by receiving the set calibration values with each transmission - the calibrated soil moisture values already arrive!

Ecowitt’s answer would make sense if the sent data would contain the uncalibrated values, and the correct value is calculated by the receiving party. But this is not the case, is it?

Thanks for your time and effort to communicate with Ecowitt on this, Oliver.  I agree with you on this and wanting clean, efficient data.

It sounds as if the soil moisture values are not adjusted when sent via the custom server option.  Then they are sending the adjustment/calibration values plus the original values so it's up to the software that receives the custom server data to calculate the final values.

I don't think any other data is sent that way and I don't understand why the calibration wouldn't be applied first and then the resulting values are sent.