48gx AVAILABLE.

I CAME ACROSS 4 hp 48'S, 3 ARE THE 48gx, AND ONE IS THE hp 48sx. 2 of them are still in the box, never been used! As a onetime user of these, I know that they can be treasured by some surveyors. There are also two 48G's, still in their box. An old ec

hablas español Hp en lengua 35s RPN

Hello my Spanish speaking Friends, My friend in Argentina has gave me permission to feature his Hp 35s

Topographic Calculation Programs. His name is Pedro Daniel Leiva.He has wrote 32 programs some he has not published like me ,but still retains being

The Little Big Calculator that Calculated I think I Can

 Hello Everyone, In the calculator world HP has hit some Home Runs in its time. Starting back with the original HP 35 to the little HP 25 to the HP 67 to the HP 41cx and the well used HP 48 gx. Ever one i just mention was well used in the surveying w

Do You Write Equations with Your HP 35s and what else can I store There?

 Hi Everyone, Any of you HP 35s user write equation to use in your every day work . Or is your equation list empty. IT shouldn't be. Many survey problems can be solve with a equation or two. and what else is it good for. Did you know that you can sto

Satified or Dissatisfied with the HP35s calculator

HI everyone,I am a member of the HP Calculator Support Forum Group . I would like to know if you own one of these calculators. And if, you like, or don't like, satisfied or not.Even if you don't like it. This is only RPN  Logic cal. that is made toda

Calculating Grid Azimuths using HP48gx

Hello Fellow Surveyors,

I ran out of programming space on my hp33 but would like to write some programs to calculate Grid Azimuth for the two projections, Lambert Conical and Transverse Mercator, using a HP48gx. I've not programmed anything in a HP48

HP-41 PROGRAMMABLE CALCULATOR Emulators

From its introduction in 1979 until final production in 1990, the Hewlett Packard 41 Series Programmable Calculator reigned supreme as the trusted companion of professionals and students worldwide. Its instant success was due to innovation, quality a

HP33s Guides Manuals and Programming

Many land surveyors still like the convenience of a pocket calculator in the field.  They are trusty, don't create many of the problems found in many modern day calculators and most of all, there are many surveyors who completed school and were taugh

Programs for HP35 Magnetic Declination

Last year I bought a program book for my HP35s, so it is pretty much full. Does anyone have knowledge of formulas for magnetic declinations? Any info is greatly appreciated.

HP41 Survey Pac

Information and Map Guide for HP41 Calculators used in Land Surveying

HP 48GX and HP35 Manuals and Guides

Here are four helpful documents for getting started with HP48GX and or HP35 Calculators for surveying.  There are some helpful tips in here: