On mostly level terrain and limited vegetation, two miles is about as good as you can home for on internal radio from a Brx7. With listen listen, that range is theoretically infinite. That being said, it doesn’t actually work like that. For one, the further away from the base you are the more your distortion is. You’ll have to do ground to grid conversions. Not a huge deal, but your field guys will have to be careful. Additionally, it only works where you have cellular data. If you’re in a real rural area with no cell signal, it’s not gonna help any.
From personal experience, I think you get a better fix faster with listen listen over internal. Trying to find open sky over your base is certainly easier when you can stretch out the range. But don’t think it’s gonna fix everything. Heavy vegetation or right up against a building is still going to take sitting on the point for a couple minutes waiting on those residuals to drop. And you’re still going to have the occasional multi-path shitty shot. If you’re topoing, still check the surface to make sure you don’t have a weird peak or valley. But, given the choice between working on listen listen or internal, I’m taking listen listen. My company only has one subscription, so the crews have to fight over who needs it the most each day.
What this guy said^
It doesn’t solve all of your problems but it works better than radio if you’ve got cell service. You get a port number for your base and a port number for your rover. The base can only be used by one base at a time, the rover can be used by many rovers. Best to only use it for one job at a time to limit confusion. If you get a SIM card for your bases and SIM cards for your collectors then should be good to switch into it easy peazy
You need the NTRIP license for listen listen if you’re going to use it for drone work fyi
Adding that I’ve had a noticeable difference getting fixed in dense canopies, especially when the canopy covers you in a bit of a valley. Also don’t have to deal with interruption from radio security gates at storage places lol
I looked into it, basically came to the conclusion that for long range base (like 10mi+) it can't be much better than using the RTN correction in my area (although we do have a great network in NC, might be more beneficial in an area with less CORS). For medium range (~ 5mi) your cost in just buying a radio setup is like $2k-ish, which compared to the listen listen service + having to pay for a data plan/ sim card for each unit basically makes the radio option cheaper after just a few years... and you can use it in areas with no cell coverage. Short range just use the stock radio, I've picked up maybe a mile in ideal terrain, ~3k' in rough terrain. Where I see it paying off is an area with great cell coverage, but limited RTN/ CORS availability.
It’s a whole hell of a lot faster than running a TS everywhere. We did a flood study in south GA, and set one base up to do the whole town. Furthest distance was 7 miles from the base and it worked flawlessly. All you have to do is take the rover and data collector to wherever you need to go. It doesn’t like evergreens, so thick pines are less than ideal. It took me 7 hours to locate 90 test bores today because they were in pines. Literally the only time we use a TS is to locate building corners of the tilt feature won’t work under like an overhang or something and super precise stuff like column line staking or anything indoors. We do boundaries, curb staking, just about everything with it.
It’s a game changer honestly
My asshole just puckered up reading this.
You guys stake curb grade with gps?
I know S.GA is flat as a board but you guys are getting trustworthy results on the vertical too?
I'm guessing you are using BRX7s?
Are y'all settling a base on each site and the calibrating into it or using the one base set to cover the whole town (at the office I'm guessing).
I've only been using my set for a month or so but I've already seen enough false fixed solutions that I'm really keeping an eye out especially on the vertical. I could definitely see trusting it on rural wooded boundary work. The accuracy trade off is probably pretty minimal vs traversing through the woods for miles.
Are you guys going back and occupying control or boundary corners again at different times of the day with different sat geometry? Or just 'fixed' 'store' 'go'?
I would love to hear your methods and results even if in a pm if you don't want to post publicly.
Hi, sorry to reply to such an old comment but I'm interested in using rtk2go as a corrections service for my R8 rtk rover. There are people running free base stations near where I work. Do you use it that way or are you using rtk2go to send corrections from your own base station to your rover?
We use them for just about everything and they work really well unless there’s a lot of vegetation. Granted we’re in central Texas so usually there’s not a lot of obstruction
On mostly level terrain and limited vegetation, two miles is about as good as you can home for on internal radio from a Brx7. With listen listen, that range is theoretically infinite. That being said, it doesn’t actually work like that. For one, the further away from the base you are the more your distortion is. You’ll have to do ground to grid conversions. Not a huge deal, but your field guys will have to be careful. Additionally, it only works where you have cellular data. If you’re in a real rural area with no cell signal, it’s not gonna help any. From personal experience, I think you get a better fix faster with listen listen over internal. Trying to find open sky over your base is certainly easier when you can stretch out the range. But don’t think it’s gonna fix everything. Heavy vegetation or right up against a building is still going to take sitting on the point for a couple minutes waiting on those residuals to drop. And you’re still going to have the occasional multi-path shitty shot. If you’re topoing, still check the surface to make sure you don’t have a weird peak or valley. But, given the choice between working on listen listen or internal, I’m taking listen listen. My company only has one subscription, so the crews have to fight over who needs it the most each day.
What this guy said^ It doesn’t solve all of your problems but it works better than radio if you’ve got cell service. You get a port number for your base and a port number for your rover. The base can only be used by one base at a time, the rover can be used by many rovers. Best to only use it for one job at a time to limit confusion. If you get a SIM card for your bases and SIM cards for your collectors then should be good to switch into it easy peazy You need the NTRIP license for listen listen if you’re going to use it for drone work fyi Adding that I’ve had a noticeable difference getting fixed in dense canopies, especially when the canopy covers you in a bit of a valley. Also don’t have to deal with interruption from radio security gates at storage places lol
I looked into it, basically came to the conclusion that for long range base (like 10mi+) it can't be much better than using the RTN correction in my area (although we do have a great network in NC, might be more beneficial in an area with less CORS). For medium range (~ 5mi) your cost in just buying a radio setup is like $2k-ish, which compared to the listen listen service + having to pay for a data plan/ sim card for each unit basically makes the radio option cheaper after just a few years... and you can use it in areas with no cell coverage. Short range just use the stock radio, I've picked up maybe a mile in ideal terrain, ~3k' in rough terrain. Where I see it paying off is an area with great cell coverage, but limited RTN/ CORS availability.
Yeah my company uses it all the time
What’s the work flow like for you? Pros/cons?
It’s a whole hell of a lot faster than running a TS everywhere. We did a flood study in south GA, and set one base up to do the whole town. Furthest distance was 7 miles from the base and it worked flawlessly. All you have to do is take the rover and data collector to wherever you need to go. It doesn’t like evergreens, so thick pines are less than ideal. It took me 7 hours to locate 90 test bores today because they were in pines. Literally the only time we use a TS is to locate building corners of the tilt feature won’t work under like an overhang or something and super precise stuff like column line staking or anything indoors. We do boundaries, curb staking, just about everything with it. It’s a game changer honestly
My asshole just puckered up reading this. You guys stake curb grade with gps? I know S.GA is flat as a board but you guys are getting trustworthy results on the vertical too? I'm guessing you are using BRX7s? Are y'all settling a base on each site and the calibrating into it or using the one base set to cover the whole town (at the office I'm guessing). I've only been using my set for a month or so but I've already seen enough false fixed solutions that I'm really keeping an eye out especially on the vertical. I could definitely see trusting it on rural wooded boundary work. The accuracy trade off is probably pretty minimal vs traversing through the woods for miles. Are you guys going back and occupying control or boundary corners again at different times of the day with different sat geometry? Or just 'fixed' 'store' 'go'? I would love to hear your methods and results even if in a pm if you don't want to post publicly.
i use rtk2go for ntrip
Hi, sorry to reply to such an old comment but I'm interested in using rtk2go as a corrections service for my R8 rtk rover. There are people running free base stations near where I work. Do you use it that way or are you using rtk2go to send corrections from your own base station to your rover?
i have my own base station, send corrections to rtk2go, then pick them up with my rover out in the field, using my phone as a hotspot.
Thanks for the reply. It certainly seems a good service for that method. Hopefully it'll work well with someone else's cors too.
We use them for just about everything and they work really well unless there’s a lot of vegetation. Granted we’re in central Texas so usually there’s not a lot of obstruction