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INSTRMNT.TXT
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1991-01-02
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This is a simple compass and tape surveying system.
To actually survey land, you will need a Silva Ranger compass. This does more
than just tells you which way is north. It is the compass of choice for
professional geologists, foresters, prospectors, and guides, as well as
surveyors who need a preliminary survey. It has its own built-in protractor
and ruler. I sell the Silva Ranger compass for $39. It is also the best
compass for use with topographic maps, if you ignore Silva's instructions.
I strongly suggest that you survey with an azimuth (360 degrees in a circle)
compass. Quadrants may seem easier, but quadrants are an invitation to
blunders. A quadrant Silva Ranger is available if you refuse to take my
advice.
You must be able to read the compass to one degree. A lensatic compass (Army
marching compass) or a Boy Scout compass is not sufficient. If you think that
you have a usable compass, ask.
You will also need a tape measure. I sell a 200 foot Keson indestructable PVC
coated fiberglass surveyor's tape measure for $28. If you are surveying small
lots or in brushy areas, then a 100 foot tape is better, for $23. For open
unobstructed areas, a 300 foot tape is available for $34. Metric tapes are
also available, a 50 meter tape is $29.
A 300 foot roll of flagging ribbon is $2. The default color is orange.
You might want a circular protractor and tenths ruler to draw pictures by
hand, $1 each. A pad of graph paper is $2.
Shipping [$5] is by US Postal "Service" for the disk & UPS for the
instruments. Turnaround time is about two weeks [my clock speed is 1
microhertz]. Sometimes I'm only ½ fast and it takes a month. Make checks
payable to CAVE, Inc. Send your order to: Dave Beiter, CAVE Inc, ½ Fast Road,
Ritner, KY 42639. An order form "REGISTER.ME" is on disk for your convenience.