[TowerTalk] WX Sensor Placement

[Larry McDavid]

Note that Davis Instruments offers a "24-Hour Fan-Aspirated Radiation 
Shield." Its fan runs on a solar panel during the day while charging two 
NiCd C-cells, and then on the C-cells overnight. The temperature and 
humidity sensors are located near the center of the radiation shield, 
which consists of a stack of plastic ring louvers, quite similar to what 
George describes.

Larry W6FUB


On 3/3/2019 11:40 AM, George Dubovsky wrote:
> Gedas,
> 
> Imagine a stack of upside-down, white plastic bowls (about 7" dia, quite
> thin due to their dollar store origins), spaced from each other by a
> repeating triangle configuration of 1-1/2 inch or so aluminum spacers. The
> top 2 bowls are solid, but the bottom 3 bowls have a 2 or 2-1/2 inch
> diameter hole up through the center where the Davis temp/humidity module
> resides. Air can flow through it, but it's pretty much protected from rain
> and sun. Somehow I affixed a pvc pipe fitting on the bottom and it's about
> head height out at the edge of the woods. After some sort of wind-blown
> debris smashed the top bowl, I added a round aluminum plate to the top on
> short spacers.  It's raining here or I'd go out and take a picture.
> 
> 73,
> 
> geo - n4ua...

-- 
Best wishes,

Larry McDavid W6FUB
Anaheim, California  (SE of Los Angeles, near Disneyland)