A stronger radio will definately get you further.
Javad DPOS and Triumph 1/LS
- Thread starter Jason Scott
- Start date
Also try raising the radio up higher. This will improve range.
yes
Nate The Surveyor
Well-Known Member
This is one of the reasons I like to localize in the LS. I can start a job, with an autonomous base, then assign a local coord in a local system. 50k,50k. Do all my field work. Return home, upload those ground local coords, compute the next days field work, and go to bed. Get up, dpos it, (now the base is on real spc) do another session, and return to home, with non changing job coords, while staying on spc, for the underlying coords. This way, I can download, and compute. Without changing the job coords. Just the spc changes.
Ron Booher
Member
Do you change coords back to grid to set corners or stakes on line?
Nate The Surveyor
Well-Known Member
No. The whole job, start to finish, stays local. HOWEVER, it is archived, with another file, (2 files) that is SPC. With the scale factor, for Grid to Ground. Now, If I want a few coords, for another survey, I can select them, and use them. The beauty of the LS is that you get both, and can use both. Just a few keystrokes, and the LS is on a local, and just a few more, it is back on GRID. I mean, literally, change pages. It GIVES me both worlds, at the same time. With nearly no work. It also gives me a ground (average of the two end points) inverse, if I tell it I want a ground inverse, while in GRID. It is the awesomest survey tool. It is somewhat cumbersome, to try to do too much COGO in it, but it is a great tool. I'd recommend a laptop, for field calcs, if they are of any complexity.
Ron,
I ran a test today with an HPT901BT connected to a Triumph-2, broadcasting corrections to a Triumph-LS. I was able to run for 11.5 hours before the radio modem battery was exhausted. This was at 5 Hz at 1 Watt. I'm not saying you aren't seeing what you are seeing, just letting you know what typical performance is from the 901 radio. This was at an ambient temperature of about 65°F.
Ron Booher
Member
Shawn hi,
I made sure the 3rd outing that it had a full charge and it did last the day, but a question why when I go to the Triumph 2 to end the session the LS says connection lost or not connected. Does the 100% mean a good connection?
I made sure the 3rd outing that it had a full charge and it did last the day, but a question why when I go to the Triumph 2 to end the session the LS says connection lost or not connected. Does the 100% mean a good connection?
100% is the radio link quality. You need to reestablish the Bluetooth connection to download the base data.
Base rover setup has two connections: Bluetooth and UHF/FHSS radio. The Bluetooth connection is used to communicate from the Triumph-LS to the Triumph 2, to setup the base at the start of a session and download the data from the base at the end of the session.
The radio link is solely for receiving corrections from the base. The data moves in one direction: base>rover. When you return to the base, the Bluetooth link is likely to be broken because you have moved away from the base beyond the range of Bluetooth. This is fine, because you only need this link to start and end the session.
So my question to you would be, which communication link is broken? Are you receiving corrections? If yes, then you have radio link. You may just need to reestablish the Bluetooth link if you are ready to end the session.
The radio link is solely for receiving corrections from the base. The data moves in one direction: base>rover. When you return to the base, the Bluetooth link is likely to be broken because you have moved away from the base beyond the range of Bluetooth. This is fine, because you only need this link to start and end the session.
So my question to you would be, which communication link is broken? Are you receiving corrections? If yes, then you have radio link. You may just need to reestablish the Bluetooth link if you are ready to end the session.
Ron Booher
Member
I should have taken a screen shot but if I recall it was the UHF connection, although I was receiving corrections most of the session till I got into thick cover, then it was hard to get fixes. I will try to upload a video of my experience on top of the ridge.
although I was receiving corrections most of the session till I got into thick cover, then it was hard to get fixes.
Are you sure it was loss of corrections that caused the difficulty in getting fixes or could it possibly be the thick cover blocking satellites? Forgive me for asking questions that may seem obvious, just trying to make sure I'm on the same page.
Are you sure it was loss of corrections that caused the difficulty in getting fixes or could it possibly be the thick cover blocking satellites? Forgive me for asking questions that may seem obvious, just trying to make sure I'm on the same page.
I would like to add. On the base rover screen, once you issue the stop base command, your UHF, or TCP corrections are stopped also. The field directly below the Connect/Disconnect button will then always indicate No Connection at that point.
The message "No connection" is referring to your RTK correction stream, and not your Bluetooth connection. The Bluetooth state is indicated by the state of the Connect/Disconnect button on the top left of the base/Rover screen.
The message "No connection" is referring to your RTK correction stream, and not your Bluetooth connection. The Bluetooth state is indicated by the state of the Connect/Disconnect button on the top left of the base/Rover screen.
Ron, I see what you are talking about. Forgive the confusion.
This discussion really has nothing to do with the original topic, so I've started a new thread here to explain what you are seeing:
https://support.javad.com/index.php?threads/base-rover-setup-no-connection.1677/
Feel free to respond to the new thread with any comments or questions.