Hi,
I was wondering if a GNSS receiver with built in GSM/GPRS modem acting as base can broadcast the corrections directly to internet instead of UHF modems so that any rover can connect to the base and receive the corrections via internet. Something like the RTN'S but in a own base-rover situation.
Is there a software that does that?
Yes it can be done on the base on some receivers, what receiver are you planning on using?
I wonder if RTN's are reliable. If the internet was a constant speed (of light) and not modulated by the various servers it may go through then reliability would exist. I bring this up because one of my previous internet providers had the habit of "punishing" me for over use of the service by slowing my connection to a crawl. How could you be certain that your self made RTN is not being messed with?
gto234, post: 342712, member: 6780 wrote: Hi,
I was wondering if a GNSS receiver with built in GSM/GPRS modem acting as base can broadcast the corrections directly to internet instead of UHF modems so that any rover can connect to the base and receive the corrections via internet. Something like the RTN'S but in a own base-rover situation.
Is there a software that does that?
I can't speak to any others, but a Trimble R10 can act as a base broadcasting to the Internet or as an NTRIP caster. The only drawback is that you need a static IP address on your SIM card, which may or may not be available and/or costly.
Trimble has a little known software called Streaming Manager that lets you send the data through the modem and then redistribute it - this is handy because it's easier to set up a fixed IP at your home or office and you can set up a multicast port... in other words, any number of rovers can use the data on the same IP and port.
I use a Sokkia GSR2700ISX with internal GSM/GPRS modem.
I would like use it as a base (set up in a known point) and broadcast the corrections via internet so that any rover can connect to it via internet also. E.g. I have two GSR1700CSX rovers that could connect to the internet and receive the corrections from the base eliminating the need of UHF modems.
There is a software from Sokkia called GSR Netlink but it is obsolete and discontinued.
I know there are a few people that are using a Verizon MIFI at their base and broadcasting corrections to their rovers using Javad receivers (Triumph 2 and Triumph 1M bases broadcasting to a Triumph LS rover connecting either through Verizon mifi or 3G SIM card).
What's nice about this is I set up the triumph 2 to send corrections over the static IP. I can now get corrections to any brand receiver as long as I have an internet connection on the rover end. I am currently running my epoch 50s off the triumph 2 base along with the LS, all at 5hz.
So I suppose it is a brand specific feature to broadcast the corrections over a static ip.
I guess i am out of luck with Sokkia.
Don;t suppose you have a manual?
Also - are you hoping to use the base in the field or fixed (eg at the office).
You may be able to use a computer to relay the corrections to the internet if the latter.
squowse, post: 342948, member: 7109 wrote: Don;t suppose you have a manual?
Also - are you hoping to use the base in the field or fixed (eg at the office).
You may be able to use a computer to relay the corrections to the internet if the latter.
Not all are written in the manuals my friend.
I hope to use it in the field.
gto234, post: 342952, member: 6780 wrote: Not all are written in the manuals my friend.
I hope to use it in the field.
The static IP would be assigned to the SIM card by your provider - it should definitely be possible. However, in that configuration, it may only be possible for one rover to run off it.
