The LR is only 20mW, compared to 1W on the XLR
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I did upgrade my base to the XLR, so if you haven’t purchased anything yet then it is definitely worth the extra power if the line of sight is compromised at times.
also one thing to remeber if the signal is blocked for a small section of the feild its not a problem, only if it lasts 30 seconds or 1 min.
I seen Ardusimple has a ethernet port that conects to the xbee port, so is the pie still nessasary?
The pi is more featured than an ardusimple Ethernet port or wifi module.
RTKbase can serve two Ntrip servers while hosting a local server. With Tailscale I can remotely connect to the base from anywhere. I really like the pi based base stations.
where can I find info on setting up a base station with the pie?
right now I have been using radios but have been tempted to do the RTKtogo route.
Would it be possible to send the RTK corrections over the radio signal and the internet? So when I could Choose what singe I want to use based on what field Im in.
Some reading here:
and here:
Also many guides posted on this forum.
You can have both NTRIP and radio with the “Stefal rtk base”.
The RTKbase GitHub page has some instructions. It’s only a few commands to install and setup RTKBase onto a working Pi. Takes 5 minutes if you have a Pi and know your way around it.
If it’s your first time setting up a Pi with an OS, connecting a Pi to your network, using SSH, etc then that will take you some time to figure out, but there’s a million internet tutorials on how to do that stuff.
You can plug a radio into the Pi using a USB adapter, or connect with wires to the Pi’s serial pins. Your F9P can connect without USB or serial wires too. There’s a “setup and detect” button for F9P, but you can use other receivers too.
The RTKBase software has sliders where you can turn on/off, in any combination.
NTRIP A
NTRIP B
NTRIP Caster (local)
RTCM TCP
RTCM Serial (radio)
So you can serve rtk2go, centipede, host locally, forward over TCP, and run a radio, all at the same time, or in any combination. All with different messages or the same, whatever you want.
Couple things:
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Those who use XLR or radio corrections, what is your real world experience for distance from your base?
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Does it pay to get a “survey grade” antenna for the base or does the u-blox antenna provide the same accuracy once corrected?
1.The radio is really good as long as you have line of sight, if you can see where the radio is broadcasting from you will most likely get a signal. If you go behind a building or trees for a small section thats not a problem as long as for the most part you have good line of sight.
- I have no experience with the survey grade antenna, but the standard is just fine, if you want to up grade spend more money upgrade on the radio side, more power and better antennas will have a noticable difference.
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Interesting, i was tunnel-visioning on the GNSS antenna but the radio antenna might be more important. Are you using the stock antenna or did you make/buy a bigger one?
I just used the stock antenna fro both radio and GPS, but I did up grade to the XLR radio
Did upgrading to the XLR solve all issues?
What distances are you getting and in what conditions? I ask because I would have quite a few trees and some slight hills.
I am trying to figure out how to send radio corrections via Stefal RTKBase. Which serial to radio adapter do I need? I currently have a XLR starter kit from Ardusimple. Is there a way to output messages to RTKBase and the xbee header directly on the RTK2B or do I need to use a serial to radio adapter from the RTKBase? I would like to have the options of running either radio or NTRIP is the reason I am using the RTKBase.
I believe you have several options. You could configure the RTK2B receiver to feed RTKBase via USB and another set of messages to the xbee header and have the radio attached there.
You could also use the normal RTKBase configuration and attach the XLR radio to an Xbee USB carrier (I assume it can provide enough power for the XLR radio). RTKBase would feed RTK corrections via the serial output.
The latter would allow a messages like RTCM 1008 through the radio interface too. Not possible if the radio was on the xbee header.
Thanks for the reply! I will need 1008 messages for trimble I believe, so I will need to go the second route. https://www.ardusimple.com/product/usb-c-carrier-board-for-xbee-plugins/
Would this be what I need?
Also wondering if I can run a long usb cable using this setup instead of the short sma or will I loose data like on a long sma cable?
Depends how long
Is 20ft doable?
I bought this module for another project, I would like to know if it would work to send base-rover RTK corrections. I was unsure about the number of bytes it sends. And how would I connect Stefal’s base?
Seems this device works with a TTL level serial port, you could wire it directly to the Raspberry Pi serial port.
Need to configure it to a higher than 2.4k speed. I guess you have another one of these for the rover?