[Laser] Freespace Laser Surplus Device Source

[Pat Barthelow]

Folks,

Years ago I worked with 3 different models of AGA Geodimeters,  A model 4, 
Model 6 and Model 8

I found some information about these, and copy here some info and pictures 
of them.
http://americanhistory.si.edu/collections/surveying/object.cfm?recordnumber=758694
http://celebrating200years.noaa.gov/distance_tools/bigred.html
http://www.ngs.noaa.gov/FGCS/BlueBook/pdf/Annex_F.pdf
http://www.gmat.unsw.edu.au/currentstudents/ug/projects/f_pall/html/e12.html
http://ocw.mit.edu/NR/rdonlyres/Earth--Atmospheric--and-Planetary-Sciences/12-215Modern-NavigationFall2002/32B4C612-FDB4-48F0-8429-15FB54F7C633/0/12215lec15.pdf
http://www.gmat.unsw.edu.au/pictorial_history/Prov_Gallery/1990-13/slides/1990-13-23.html
http://www.photolib.noaa.gov/htmls/geod1088.htm
http://www.photolib.noaa.gov/bigs/geod1089.jpg

The model 4 was advanced for its time, now, looks more like antique 
technology, but had some reall y precision optics for measuring long 
distances in Geodetic Networks.
The website mentions a couple of upgrades to the Model 4, with references to 
who did them, as a academic/operational exercise.   The model 4,  and, 
practically up through Model 6 series, and even the AGA Model 8 geodimeters, 
are no longer used in geodetic surveying, perhaps some can be found surplus, 
though I think they may have significant value for antique surveying 
equipment collectors.  The model 2,  4 and model 6 optic systems were real 
works of electro mechanical art.
Somewhere in some govt warehouse or equipment room, sits an old, dusty Model 
2, 4 or 6 geodimeter, just waiting to be surplussed out, for some free space 
experimental use.

73,
Pat Barthelow     aa6eg at hotmail.com
http://www.jamesburgdish.org
Jamesburg Earth Station Recovery Team