I think this is what you may be looking for:"RTKLIB is an open source software package written by Tomaji Takasu from the Tokyo University of Marine Sc...

Larry Scott, post: 431812, member: 8766 wrote: Sometimes you have go with what you have.As for life cycle, it's 62 yrs old and I'm pretty sure it work...

Loyal, post: 431792, member: 228 wrote: Nice T3, but you need a matching (bigger) tripod.:)Loyal Sometimes you have go with what you have.As for life...

What's the life cycle of an instrument?Is eternal too long?06-jun-2017

I've been metric from the git go, just didn't know it. Feet are for hard copy maps - if requested. _________I was pointing out to someone a summary of...

One thing that hasn't been emphasized, or emphasized enough, is the elevation of the ground/road surface under the power line. The main focus may be c...

chris mills, post: 431223, member: 6244 wrote: As Squowse says, this works best, and is applicable in all circumstances, even where you can't get a sc...

John Hamilton, post: 431090, member: 640 wrote: He states that they are basically wide open. He says he used "an empirical geoid model". Maybe should ...

BK9196, post: 431181, member: 12217 wrote: I'm assuming your don't have a scanner or reflector-less ability or this would be a non-issue. If that is t...

Poor gps is not a reason or a feasible excuse.A rag tap and a Sear&Roebuck can do better than 4'. Sounds like a compass and pacing.Gps costs a lot...

Better. [MEDIA=youtube]jp02WBYiExk[/MEDIA]

Is this right?[MEDIA=youtube]SI-x-qu0YZY[/MEDIA]

John Hamilton, post: 430759, member: 640 wrote: Those are what I call "the good old days". I had one guy who would consistently put in east longitudes...

muncle56, post: 430635, member: 8893 wrote: photogrammetrists: "the horizontal datum is NAD83 NY east zone raised to local using a factor of 0.9999. ...

Andy Nold, post: 430731, member: 7 wrote: How many of the greenhorns remember selective availability or mission planning? How many remember having to...

Just two weeks ago I tried. Pulled it forward and stacked the 5' marks. After about ten minutes I laid it back out and got a reel. I'm jealous of thos...

Lee D, post: 430488, member: 7971 wrote: Truth be told, my son expressed an interest in pulling out my old T16 and turning some angles with it, so we'...

Sanborn maps are early GIS, almost like aerial photography.

Analog equipment can last forever, until it gets dropped.Electronic is definitely limited. You won't see 50 year old electronic gear still working.But...

Is the freeware GNSS Solutions only L1 processing? Is there a dual freq post processor like like gnss solutions?