"....I've been told that 20 minutes causes enough of a constellation change to validate a new shot with different multipath conditions...."
I read several sources on this subject including one that mentioned the 20 minutes recommendation. It's not a direct mathematical relationship. What works is going to depend on the multipath conditions present at the site and the orientation of the constellation of the moment. 20 minutes is always going to be better than nothing, 2 hours is always going to be better than 20 minutes, and 6 hours is going to be about optimum - given the +/-12 hour orbital period of the satellites.
I'm not saying that you need to tie everything twice, time offset. But it is something worth doing if higher precision is wanted.
These Javad threads always have a P&R feel. Tribal.?ÿ
Hey - Javad is great gear, at a great price point, and they give great customer service. Along with a healthy dose of propaganda.?ÿ Leica, Trimble, Topcon, and several others are also great units. They all solve multiple, concurrent, redundant fixes in one fashion or another.?ÿ That's been a thing for quite a while.?ÿ ?ÿ ?ÿ
I just got a base & rover set of R10-2's. They are phenomenal in full canopy and the internal batteries are lasting close to six hours on the base while driving the internal radio at full power. I also have yet to get a bad shot. They're good and repeatable or it will cry foul before you're allowed to store the shot, at least that's what I've seen so far.
Agreed. If I remember correctly, that 20 minute recommendation is for network RTK, not single base, and assumes multi-constellation tracking under ideal conditions, i.e. upwards of 12 SVs tracked and used in solution.
These Javad threads always have a P&R feel. Tribal.
Whell, ok, I feel like a kid may have felt, in 1820, who just rode the train to Boston. It beats walking.
And, the sights are amazing, to this country boy.
N
These Javad threads always have a P&R feel. Tribal.
I think that's because the typical user of the Triumph-LS is new to current-generation receivers. He may have some experience with older equipment, but may also be new to RTK. He's a small-time operator for whom the price point is important, and has been skeptical about the value of RTK. As a result of all this, he tends to be quite impressed with the performance of the unit and therefore likely to sing its praises.
This doesn't describe all Javad users, of course, but it captures a lot of them, including me. I'm not suggesting that our enthusiasm is misplaced, but it does take on a tribal feeling at times.
And the platform is truly different from the rest of the pack, as is the support model, which offers a pretty direct connection between end user and developer. Javad Ashjaee himself even weighs in on support threads now and then. (I've had some experience with Trimble support over the last 20 years, and the difference is stark.)
Not sure about doctors. I know a few surveyors that do.
JA, PLS SoCal
Attorneys and accountants charge by the hour.
"There is a learning curve."
Nate, that has to be the understatement of the decade, boss! That first version of J-Field was a huge obstacle for me. Over the last 5 years, I have learned what I need to perform the task at hand.
I can appreciate all of the settings that are available to the user but I wish that I could toggle a simpler, cleaner interface for certain projects that don't require that I see all of that data that fills many of those little boxes on the screen. Right?
Learning curve, my patootie.
JA, PLS SoCal
Good points. And on the opposite end of the spectrum, consumers tend to expect much more of the larger manufacturers (higher price point and marketing help with that), and because they have been around for a while with ups and downs, users tend to be a bit jaded. Add to that the variability in support due to regional differences...
Having worked tech support and training for one of the large manufacturers, I interacted with numerous individuals who had some wildly unrealistic expectations of their equipment, especially GNSS. It's hard to please everyone, and it's especially hard to convince everyone that there is no single perfect workflow to get perfect results every single time. Most people don't like being told that their expensive new toy still requires a high level of technical knowledge, and careful judgment about when and how to use it.
That definitely would have been quite a feat since the first passenger railroad didn't run until 1827!
Jerry, my Company slogan is "Faster but not Cheaper". Most clients don't care what it costs as long as they can get it now.
Yer hurtin me. 😉
Wow, this went from a pat on the back for Javad (which I also own) to a dog pile on the guy for his billing practices. Reminds me of another board from long ago!
I would like a large coffee mug, that says "it's a Javad thing, you wouldn't understand"
😉
N
So this Javan digs ditches AND delivers a drive up window Hamburger/Fries meal?
Yeah, and the whole enchilada too.
Would you like Pico and salsa with that?
N
not really... I asked a question and he answered it. The other discussion was about other people's biz practices, not the OP.
It's actually pretty easy to get up and going with collection and stakeout since Javad implemented the action profiles. My 11 year old daughter learned how to locate improvements and topo with about 5 minutes of instruction from me.
I noticed this morning, after going through stacks of mail, that I have been habitually getting my professional publications and flipping to the Javad centerfold ads just to see what they have cooking.