[MLB-WIRELESS] Debugging 915mhz weather station?

emdeex emdeex at gmail.com
Wed Mar 24 14:23:56 EST 2010

Just out of interest, that 'smart-screwdriver' I have says it can detect
microwaves "greater or equal to 5MW/CM2' ...

Can anyone explain what that means?

On 22 March 2010 19:03, Jeremy Lunn <jeremy at austux.net> wrote:

> I have a similar weather station (WS2308-11), that I bought a few years
> ago.  I got a bit lazy and only set it up recently, though been having a few
> intermittent problems.  First of all, the rain gauge wasn't working, so I
> got the multimeter and held the buckets level and even rocked them from side
> to side; no reading.  Then that particular part got bumped accidentally and
> later on I performed the multimeter test to one of my brothers to show it
> wasn't doing as it was supposed to and well suddenly it was working.
> A couple of weeks later, I noticed the console wasn't working, no matter
> what we did.  Another brother (who knows electronics much better than me or
> my other brother) took it home to test it, though it was working by the time
> he plugged it in to test again, so he couldn't find the problem.  Though he
> reckons that both problems are probably dry joints.  I don't know if that
> would be the same problem as you are having.
> Also you may want to read some more info on positioning the weather
> station.  I found the following two links to be quite useful:
> http://www.home-weather-stations-guide.com/weather-station-set-up.html
> http://wiki.wunderground.com/index.php/PWS_-_Siting
> I suspect that placing the temperature sensor under the eves may not give
> the best reading.  The problem being that on a hot day, you'll probably get
> a lot of radiation from the roof above if the sun is shining on it directly.
>  In any case a radiation shield would probably help though I haven't tried
> anything yet.
> I don't think I'll use mine with wireless because you get more frequent
> updates with fewer interference problems over the wire (you could use cat5
> cable with some phone connectors to make longer cables).  I guess the only
> problem is that if a lightning strike does occur, I'll end up with more than
> a fried weather station, but a fried computer as well.  I guess feeding the
> cable through a surge protector might help though.  In any case if you have
> any roof top antennas, you'd probably have considered this problem already.
> Jeremy
> On 21/03/2010, at 9:48 AM, emdeex wrote:
> > There are no lights, indicators on the transmitter, so my first guess
> would be the transmitter is not working.  Is there a way I can detect if the
> transmitter is transmitting?
> >
> > Any other ideas about how to debug it?
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