Roll-your-own NTrip server-Success!

This would have been much easier if someone would make a single device that has all of this built in...modem and Ntrip Caster. Of course the R10 has it all built in, but I don't feel comfortable anymore leaving that receiver setup unattended in a lot of places that I work.

Maybe this could be done using a Raspberry PI?

This is not gonna work with Trimble, but Leica SmartNet looks really interesting. It uses no base and no radio. The corrections all come from SV. The downside is, it takes about 20 minutes to initialize, and the yearly subscription cost $2500. The upside, it works anywhere in the world, so long as you can get SV's, no cell service need.

Also not gonna work with Trimble, but Topcon Magnet Relay does all this for you. You pay a yearly subscription, just $300.
All you need is DC w/ cell modem running Magnet Field software at the both the base and the rover. The takes care of all the IP address, protocols, servers, and casters. The time to setup a Network Relay base is no more than setting up base with UHF radio.

leegreen, post: 410990, member: 2332 wrote: This is not gonna work with Trimble, but Leica SmartNet looks really interesting. It uses no base and no radio. The corrections all come SV. The downside is, it takes about 20 minutes to initialize, and the yearly subscription cost $2500. The upside, it works anywhere in the world, so longs as you can get SV's, no cell service need.

Also not gonna work with Trimble, but Topcon Magnet Relay does all this for you. You pay a yearly subscription, just $300.
All you need is DC w/ cell modem running Magnet Field software at the both the base and the rover. The takes care of all the IP address, protocols, servers, and casters. The time to setup a Network Relay base is no more than setting up base with UHF radio.

Actually, the Leica service sounds just like the Trimble RTX, which the R10 does (for a subscription, around $3000), and it works anywhere in the world (satellite broadcast). I had a large project in northern Canada that paid for the subscription in just that one job. Yes, it takes about 20 minutes or so to init, but there was no other way to do it up there and the distances were large.

The topcon service sounds like a useful thing, I see no reason why some enterprising person or company couldn't offer a similar service not tied to any particular manufacturer. I should add that to get all of the above to work correctly I had to switch to RTCM (3.0) from CMR+. I see no down side at all, in fact some research I did online says that RTCM 3.0 has smaller data packets than CMR+. I think the resolution of RTCM 3.0 is 0.5 mm, whereas CMR+ might be a bit higher resolution, but that is well under the noise level of RTK

John, very cool, I guess I took the easy route, my Intuicom Bridge-X (make that plural units now) have this functionality all built in, albeit at a higher price tag. Of course I also got the 900 Mhz radio too for close in work. Being able to host your own base station anyplace you have cell signal at base and rover is very useful and is something I do quite often when outside a RTN or where I want the utmost control over the data. My next experiment is going to be seeing if I can hook an Inmarsat satellite terminal to the bridge for RTN corrections in areas of RTN coverage BUT no cell service. I think I only need a WiFi -> Ethernet adaptor to try this.
SHG

I only have the older bridge. So the newer model has a built in NTRIP server/caster?

I found https://www.pinterest.com/pin/555139091554294193/&apos ;">THIS out on the intranets...

Looks like it could be useful...

gschrock, post: 411584, member: 556 wrote: I'm trying to find that out... I have an old one which works great but wanted to see about a caster capabilities.

I did find one other solution that uses only one external device, but does not allow authentication (or at least I have not figured that part out yet).
By pushing corrections from the base into the serial port of a Sierra GX440 or RV50 (with a static IP) the rover connects directly to a forwarded port (no NTRIP involved). Have to been able to get multiple ports forwarded to work, but working on that.
A variation with two devices is a device server connected to the modem and forward ports from the static IP. Again, no authentication.
Found some services (for Ag users) that will host on their caster for you 9/then only a modem is needed) but cheapest was about 50 a month.

Gavin: I can not get the "non NTrip" solution you mention to work. I have to push the corrections out the serial port to the modem to SNIP running on my PC, which then functions as an NTrip caster. Maybe I am not configuring the rover correctly to connect directly to the serial port at the base via the modem. It connects but does not see any data stream that it recognizes.

John Hamilton, post: 411575, member: 640 wrote: I only have the older bridge. So the newer model has a built in NTRIP server/caster?

Yes, Intuicom calls it http://www.intuicom.com/images/casestudies/BridgeX_SURVEY_solutions.pdf&apos ;">base/socket mode (see page 2) which allows four devices to log into the IP of a single bridge. I am trying to figure out how to set my second Bridge up to log into the first and rebroadcast on 900 Mhz (diagram at bottom of page 2)

So far I have successfully set up a base with the bridge connected and access it with my rover modem or even my phone to check the status of the bridge remotely, just got the 2nd bridge this month for two reasons; 1) to do what I outlined and 2) the new https://www.intuicom.com/images/datasheets/4G_RTK_Bridge-X_Datasheet-RS_9Nov2016.pdf&apos ;">4GLTE model has Band 17 in the 700 Mhz spectrum, that is where a lot of new cell service is being deployed, thus usable a lot more places and bonus is it is 4GLTE not that you need the speed for RTK data, BUT I have used the bridge hotspot to access e-mail when my phone showed no service, granted it can't make signals from nothing, BUT definitely can pull in cell service where a handset fails.

SHG

That looks like a big improvement. I just wish Intuicom had a better upgrade path, they do not offer much of anything for a trade-in. I realize they have development costs, but I wish their units were more modular so that boards could be swapped out when new features become available. I will probably get the new model sometime, but I would not trade in my old model, as it is worth more to me than what they offer.

Actually, what I have setup is the functional equivalent of the base-2-socket, except my PC in the office is generating the corrections, and the rovers are connecting to that.

John Hamilton, post: 411670, member: 640 wrote: but I would not trade in my old model, as it is worth more to me than what they offer.

Exactly and why I have two Bridge's now, it does add some functionality having two, BUT if the upgrade path was sweeter, I might of just opted for a single new one.

SHG

John Hamilton, post: 411670, member: 640 wrote: but I wish their units were more modular so that boards could be swapped out when new features become available.

Not just them, there is zero reason Pacific Crest couldn't have offered an upgrade to narrow banding on the PDL's, Leica and Trimble couldn't upgrade the older 2G modems, etc. with just a simple board swap, but instead you have to get rid of gear and buy the newest modem or radio as a complete replacement, really chaps me that it is that way.

SHG

Hi there! I happen to have a license of Serial to Ethernet Connector. Do you think it will do a good job instead of TCP-COM?

Lanterino, post: 436986, member: 12881 wrote: Hi there! I happen to have a license of Serial to Ethernet Connector. Do you think it will do a good job instead of TCP-COM?

I would say yes, nothing special about tcp-com that makes it essential, i just know that it works.

Hi Jo
I have 2 trimble r7, TSC2, WIfi + cable connected to PC, + Lefebure Ntrip Caster.
I want to work at a distance. 15 km.
I tried to connect the trimble r7 + PC but it seems Lefebure Ntrip Caster does not work and I have spent quite a bit of time for this.
Anybody have specific instructions for this Ntrip operating system? Or what additional equipment do I need?