Re: Simple Calculation of Sunset Time required

["John J. Bengii" <nobody@xxxxxxxxxxxxxx>]

as long as they are not too cold and as long as they don't have a data
collision and as long as they do not experience a microwave or other noise
and as long as they actually sense something (half mine (6) were garbage on
arrival)

"Robert Green" <ROBERT_GREEN1963@xxxxxxxxx> wrote in message
news:AMydncv0IdFOLUbanZ2dnUVZ_s-pnZ2d@xxxxxxxxxx
> "Jim Thompson" <To-Email-Use-The-Envelope-Icon@xxxxxxxxxxxxxxx> wrote in
> message
>
> <stuff snipped>
>
>> I'm located down in a "notch" between two hills.  I use a photocell
>> with a collimating tube to "watch" the streetlight which has a
>> photocell WAY higher than I can get ;-)
>
> I would think a diffused dome reflector like those used on photographic
> light meters pointed straight up would work in your situation, but your
> solution is still a lot simpler than calculating dates.  It also provides
> light whenever the streetlamp controller decides to provide light, so it's
> probably going to compensate for extremely overcast and rainy days.
>
> I've been examining the nightly log of controller events and its very
> clear
> that a photocell is no slave to absolute sunrise and sunset times.  Rainy,
> cloudy skies affect the total ambient illumination quite noticeably.
>
> The X-10 Hawkeyes may not be good for much, but they do a very reliable
> job
> of sensing sunrise and sunset.  Better still, I didn't have to run any
> wires
> because it's RF. I just have to remember to change batteries every two
> years.  Pretty good deal considering most of my Hawkeyes came free during
> the great "X-10 Voucher" days.
>
> --
> Bobby G.
>
>
>