Here in the Chicago area, we don't use water in the water level. Too hard to
read. We use auto anti freeze, the nice green color makes it easier on the
eyes and doesn't freeze or change volume.
jack Daniels also works, but it kept disappearing from the hose for some
reason
----- Original Message -----
From: "Chris BONDE" <ve7hcb@rac.ca>
To: <eric@k3na.org>
Cc: "Bill Ralston" <n7vm@lgcy.com>; <towertalk@contesting.com>
Sent: Thursday, November 29, 2001 12:59 PM
Subject: Re: [TowerTalk] measuring elevation
>
> At 04:44 PM 2001-11-29 +0300, Eric Scace wrote:
>
> > A stretch of garden hose (or several hoses connected together, or any
> > other length of tubing) makes an excellent elevation
> >measuring device. Lay it out along the ground with the ends sticking up
> >in the air. Water inside the tube will be at the same
> >elevation at both ends of the tube. Measure the height of the water in
> >each end above the ground and you will be able to determine
> >the difference in ground elevation. (You might need a ladder at one end
> >if the ground drops off quickly!). It only takes one
> >person (with a bit of care) to make the measurement.
> >
> >-- Eric K3NA
> This is gennerally a very good method. HOWEVER, watch for heating along
> the length of the hose. If one end is hotter than the other, such as,
most
> of the hose is in the shade and part in the blazing sun, the heated water
> becomes lighter than the cooler water. Most of the time this does not
> matter, but I had one condition just over 50ft where if I did it in the
> forenoon when all the hose was in the sun VS in the evening when part was
> in the sun, I observed two different elevations, delta 1/2 - 3/4 inch.
>
> Chris opr VE7HCB
>
>
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>
>
>
List Sponsored by AN Wireless: AN Wireless handles Rohn tower systems,
Trylon Titan towers, coax, hardline and more. Also check out our self
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-----
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