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HP48-35 Calculators

Support group for land surveyors who still use HP48 and HP35 Calculators for Data Collection and in their daily surveying lives.  Share tips tricks and software here.

Members: 36
Latest Activity: Jun 29, 2017

HP48 and HP35 Calculators for Surveying Support Group

Land Surveyor Forum - Community Discussions

The Little Big Calculator that Calculated I think I Can

Started by Billy Brooks. Last reply by Billy Brooks Jun 29, 2017. 55 Replies

 Hello Everyone, In the calculator world HP has hit some Home Runs in its time. Starting back with the original HP…Read more →

Tags: calculators, HP

hablas español Hp en lengua 35s RPN

Started by Billy Brooks. Last reply by Billy Brooks Aug 10, 2016. 8 Replies

Hello my Spanish speaking Friends, My friend in Argentina has gave me permission to feature his Hp 35sTopographic Calculation Programs. His name is Pedro Daniel Leiva.He has wrote 32 programs some he…Read more →

Tags: calculator, HP

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

Started by Billy Brooks. Last reply by Billy Brooks Jul 15, 2016. 7 Replies

 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…Read more →

Satified or Dissatisfied with the HP35s calculator

Started by Billy Brooks. Last reply by Billy Brooks Mar 12, 2016. 21 Replies

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…Read more →

Tags: calculator, HP35s

HP Calculators Videos in Our Library

Easycogo HP 35s Bearing Distance Intersection Demo

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Easycogo Survey Program solves bearing distance intersections and more.

Solving Simultaneous Equations with the HP 35s

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This video demonstrates how the HP 35s calculator can be used to solve simultaneous equations. The video was recorded by Reynold Davenport. Mr. Davenport is the author of many of the videos we sell at LSW. He spent years teaching surveying at Sandhills Community College in North Carolina. He (along with Benji DeBerry, PLS) wrote the programs we sell.

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Reply by Billy Brooks on February 28, 2016 at 2:30am

Hello everyone, Does anybody have a broken HP 48, I am missing the card cover on one of mind . Just thought i would asked. If you would like to get rid of it. let me know.


Reply by Billy Brooks on February 23, 2016 at 6:12am

Hi everyone,Next do you use equations , well this 35s is a good place to start , and what else can you store there. you will be surprise. Taking your  test too much to remember , you want have to remember anything because  you have a equation list where, in your HP 35s, how is this going to help me remember.

 stay tune in same place same station.

Reply by Billy Brooks on February 15, 2016 at 2:12am

Hi everyone, Just want to say hi to everybody We will get this ball a rolling, talk about the old and the new. Because with the limited number of calculators in the market ,the hunt is on for the old ones.Just go to ebay and price a 48gx with TDS survey and ram cards.More than collectors want them.I get ask to sell mine all the time.the answer will always be no.I have some friends who sold their, now they wish they had not.

good everyone.


Reply by ePalmetto on June 24, 2011 at 2:30pm

@charles...did you ever find the help you needed?

should've started a new discussion...sorry i missed that...let me know if you still need help

Reply by Anuar Aliz on January 10, 2011 at 8:42pm

Some pics of my HP48 with a protective "custom" leather-vinil-film cover and an adapted cable to connect directly to a Trimble total station, I can use it as a TS controller, data collector or handheld calculator (lot of help of the hp forum to do this).

The back straps allow to hang the calc in a tripod "hands free mode".

Glad to share my surveyor-inventor moments with you jajaa.

Reply by Charles W Browning Jr on January 4, 2011 at 9:33pm
Nedd some programing tips for my anyone!
Reply by Kathleen (Kate) Burnham-Evans on December 15, 2010 at 4:48pm

I use my 48 all the time... I still have one that got broken...They are becoming harder to find... I have not used the 49 can you still plug the cogo program into it.... My Recon has most of the same programs........except the slope to horizontal dist. conversion. Polish Notation!

Reply by Kelly Cramer on December 15, 2010 at 3:13pm

Thanks for the invite and the add to this group Justin.  I really do appreciate it as I do use the HP-48gx quite often still and really like and enjoy how well it works after getting to know it well for sometime now.


Where Thousands of Professional Land Surveyors, Students of Surveying and Educators are United through Collaborative Knowledge and Purpose.

Land Surveyor Forum - Community Discussions

hablas español Hp en lengua 35s RPN

Started by Billy Brooks. Last reply by Billy Brooks Aug 10, 2016. 8 Replies

Satified or Dissatisfied with the HP35s calculator

Started by Billy Brooks. Last reply by Billy Brooks Mar 12, 2016. 21 Replies


Started by AxeMen Site Prep Sep 5, 2012. 0 Replies

HP33s Guides Manuals and Programming

Started by Jaybird. Last reply by Scott D. Warner, PLS Apr 26, 2011. 1 Reply

Programs for HP35 Magnetic Declination

Started by Timothy N. Ross. Last reply by Jaybird Dec 23, 2010. 2 Replies

HP41 Survey Pac

Started by ePalmetto. Last reply by Billy Brooks Mar 7, 2016. 1 Reply

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