Recent Posts

Pages: [1] 2 3 ... 10
I don't understand the thermometer on these. One right next to me reads a little low in the daytime, but another up the road a bit reads too high in the mornings...

How is your temp now dupreezd? How about the anemometer? Some have found it sticks.

MrM1, a thermometer on the roof will read a bit high, so not surprised that you have a slight biased warm.

Tech Corner / Re: Adding LED (or?) to shield fan help
« Last post by WeatherHost on Today at 08:53:29 AM »
^^  True. And since the prospect of bring another wire down the mast to connect the gizmos has already been broached, the gauge could be mounted low, or inside an enclosure.  Power can be supplied at the bottom with only the sensor leads extended.  They come in analog or digital too.

You'd have cost into the fan, PS and meter.
Weather Web Resources / Re: NOAA WEATHER RADIO
« Last post by Cutty Sark Sailor on Today at 08:36:56 AM »
ok... NOW, many of you know my feeling about 'anti-social media".... but maintain a very low profile 'connection' purely for 'weather info' alerts, etc,....
I've received numerous msgs regarding the NOAAWR.ORG feeds.... so...
Plaster your Twitter to your local NWS with something similar to

We now have 160+ NOAA All Hazards Weather Radio streams listed at  from PWS operators in North America

Heck with 'Farcebook" ... just use the twitter....
NOAA likes what we're doing... let's let local WFO's know what's really happening....

Ken,John, Bob, working on major updates to the presentation, and PWS scripts!  Stay Tuned!

...and I've a feeling our next big project may be 'weather cams'.... I simply don't believe that "Big Blue" aka 'Weather Company" "Used2B Weather Underground" will continue such without some major diddling,...   all they 'really' want is your stats, which they can scrape from CWOP/Mesonet...  so it's really getting 'close' to a time PWS folks need to speak up... it's OUR product... not theirs.
Hello everyone
1) can we replace ntc thermostat with similar specification but of other type in our sensor array (1400 ip)
2) as per my discussion with ambient weather they used different themostats for different time period. (Mo number in battery compartment of sensor array)
3)my temprature readings getting stuck at 25.9 and 25.1 reflects sensor issue or processor issue any opinion on that.
Tech Corner / Re: Adding LED (or?) to shield fan help
« Last post by vreihen on Today at 07:26:08 AM »
I still think that my idea above for using a cheap automotive tachometer gauge is a viable solution, and as a side benefit you can read the fan's RPM to see if it is slowing down due to impending failure.....
Weather Conditions Discussion / Re: Summer/Winter 2017
« Last post by ValentineWeather on Today at 07:11:12 AM »
High plains weather June 24th. 38.8F (3.7C)
Tech Corner / Re: Adding LED (or?) to shield fan help
« Last post by dupreezd on Today at 06:59:54 AM »
Lots of fun. I enjoy projects like that

Sorry, I could not find a 555 at my house. But looking at the circuit, I am starting to doubt if it will work.

Here is my reasoning:- the fan can stop in any of two positions. If it stops in the 'on' position, the tach output will be low, this will turn on the transistor before the 555, preventing the capacitor to charge. This will put the output (pin 3) of the 555 high.
If the fan stop in the 'off', the tach output will be high, turning off the transistor and the capacitor charge up and pin 3 goes low.
Which is what we have now.

I might be wrong on this  :-)
Davis Instruments Weather Stations / Re: ProData analysis of Davis VP2
« Last post by johnd on Today at 04:41:41 AM »
Just to be 100% clear, this isn't our (Prodata) review, it is Stephen Burt's. I know Stephen and we did supply the station for his review, but it was done strictly on the understanding that the review would be fully objective, warts and all, and any significant weaknesses would not be glossed over (though, as it happens, the VP2 did pretty well). Stephen also gave permission for his review to be used on our main website.
Tech Corner / Re: Adding LED (or?) to shield fan help
« Last post by DanS on Today at 03:39:12 AM »
Lots of fun. I enjoy projects like that. Just be sure to have all your parts gathered, assembled and tested first before taking your station down to minimize down time.
You can Google "555 as a missing pulse detector" and click on "Images" to get lots of ideas and answers.
I think you mentioned that you're using a computer power supply and if so you may be able to use a standard power cable assembly to cut and splice your new circuit and plug right in.
 [ You are not allowed to view attachments ]
Tech Corner / Re: Adding LED (or?) to shield fan help
« Last post by Bashy on Today at 03:07:36 AM »
Thanks, this could take a while, i cant even remember what size fan fits the opening, i think it maybe an 80mm.
Pages: [1] 2 3 ... 10