Thanks Ben - pretty handy little feature for grabbing a heap of points. Calculate the area and volumes from organic shapes, lots of possibilities.

@MangoesmappingAU yeah 💯💯💯 I've already used it a few times.

Thanks for your feedback - we use a SIm that includes a data plan - it doesn't need to be data only. NTRIP corrections are much lighter on data consumption that KZbin videos 🙂!

Fantastic to provide some inspiration and great to hear you are planning to learn some more tricks with the team at USQ! It's an exciting time to enter the industry as there are so many opportunities.

That's a dongle that allows a SIM card to be connected to the controller. This allows the controller to connect to the internet - useful if you are doing RTK workflows.

Thanks guys - nice to share these projects!

Alistair was making the tripod legs shorter to help the cameraman (James) with filming 🙂

No a free subscription would be fine. Emlid Flow for setup / configuration and 12d Field for your data collection.

As demonstrated in the video, tilt compensation works with 12D Field. When setting up 12D Field, we selected "Do not compensate receiver position" because 12D Field has integrated tilt compensation for the RS3 receiver within their script, so the compensation occurs within the 12D software. However, if you use Carlson SurvPC, you will need to select "Compensate receiver position" in the NMEA settings. That way the streamed position is already tilt compensated. In this case, ensure the antenna height is correctly entered in the Emlid NMEA settings, and update it in Emlid Flow if needed during the survey. Also, set the antenna height to 0 in the third-party software. The RS3 will work with Panasonic Toughpad Windows and third-party software like 12D Field, MicroSurvey FieldGenius, etc., as long as the software accepts NMEA over Bluetooth.

Hi Jack, the easiest option would be to use your tilt compensated rover (e.g. Reach RS3) to pickup the point under the base to use the next day as you won't be directly over the mark. A slower but potentially more accurate solution would be to have the base logging RINEX while surveying day 1, then process the RINEX file with AUSPOS on the next UTM day to get your point (rapid static). There may be another (easier) option - but we'll need to double check this before publishing it as a solution.

@@MangoesmappingAU thank you

@@MangoesmappingAUI think going forward I’ll put a new Benchmark inside job whilst base shift is active and re set back up on it the next day with those coordinates and heights. I’ll go back and stake stake out existing control to hopefully confirm its spot on

If you have cellular coverage and the mount point is close enough - you can use NTRIP services (paid or free). Use a base station if you are in a remote area for RTK - or you want to use a static log from the base for post processing (a PPK workflow). Neither or these workflows are specific to lidar or photogrammetry data collection.

It's also worth noting that the distance between the RTK base station (or CORS station, when using an NTRIP correction) is correlated to the precision of your observations. Short baselines (ie. from your own base station setup within just a few miles) will deliver better results than when depending on an NTRIP base 20-30 miles away. Degradation of precision is non-linear, so baselines below 1-3 miles won't be too different to even shorter baselines, however as you extend that baseline out, you can expect increasingly larger degradation of your RTK GNSS observations.

Happy to help!

Thanks Nathan

Hello, with the Emlid Reach RS range of receivers (RS2, RS2+ and RS3) users can send or receive RTCM corrections between base and rover with a bnumber of pathways: mobile internet (via SIM, wifi or BLE - currently in Beta) is one pathway. Other pathways include: 1. using the integrated lora radio to send & receive corrections, and 2. using the integrated 450MHz UHF radio to receive corrections to your RS3, or connecting to an external 450MHz radio modem to any Reach RS receiver to transmit & receive corrections. I hope you find this information helpful!

Good to know, will pass it on to the Geolocarta team.

Loctite on the thread keeps everything sitting in the right spot!

Localisation is useful when we don’t have the precise parameters of the local coordinate system. In this instance we have the coordinates from the local survey marks (PSM's) so localisation is not required in this instance. Olga from Emlid explains this really well in this link: community.emlid.com/t/localization-in-emlid-flow/35351

Thanks for that tip. I'm not sure our team have come across this as they usually use a PPK workflow.

Could you do a PPK workflow tutorial for collecting GCPs and flying an RTK enabled drone (DJI Prefered?) @@MangoesmappingAU

Hey thanks for that feedback. Who would have thought there's so much to know about 2 sticks joined together!

Hi Herminio - thanks for getting in touch. Can you please let us know your contact details or email [email protected]

Sure is a handy trick - bit cheaper than a powerbank too

Hi Michael - thanks for that feedback. Not sure which model you're using but you may be interested in our latest video by our partner company Map Gear - here's a link : kzbin.info/www/bejne/pWmlhq2cm8p8rrs

What sort of work are you hoping to do? Photogrammetry? Lidar capture? Emlid have some handy tutorials on their site for getting set up for precise aerial surveys using Emlid Reach GNSS receivers docs.emlid.com/reachrs2/tutorials/integration/dji-rtk/

It would depend on the area of operation, height of the canopy and type of trees. In general we don't recommend using around trees as any vegetation can interfere with radio signals.

We don't sell any here but if you are researching, check out Victron Energy for DC - AC inverters or the Honda range Inverter Generator's.

Good point, Reachview 3 has now been superseded by Emlid Flow so plenty of changes in the last 18 months.

Thanks - we do to, especially since we did the new drivers seat upgrade! We are thinking of doing a walkthrough video showing how we set it up - anything you'd like to see?

It is incredible. In the scheme of things, the purchase costs of an RTK drone are negligible but you must be prepared to pay the second price! The price of time to learn and implement a workflow. If your landscapes are clear of vegetation then aerial photogrammetry may be an excellent way to get the data you need. Take a look at the Mavic 3 Enterprise with RTK www.mangoesmapping.com.au/products/dji-aerial-survey/dji-mavic-3-enterprise-series/ . If you want to move up to LiDAR capture then take a close look at the M300 (which is about to be replaced by the M350) www.mangoesmapping.com.au/products/dji-aerial-survey/dji-matrice-300/.

Hi thanks for that feedback - sorry about the delay! We use Benchmrk by Geolocata. Here's a link: play.google.com/store/apps/details?id=com.storytellermaps.benchmrk&hl=en_AU&gl=US. or for IOS: apps.apple.com/au/app/benchmrk/id943242395

​@@MangoesmappingAUanything for USA?

@@timd9430 Not that we are aware of. I imagine it might be a bit more complicated getting unified data into a single point for the USA.

Thanks for the great questions. No change to battery life, all we are doing is changing the propagation of the 0.1watts into a more focussed beam. The radio power remains at 0.1w. The change in focus has not been noticed by us in terms of polarisation sensitivity becoming a problem. The kit works just as well with the RS2+.

Hi MarcDoc, Emlid provides its free app, Emlid Flow to control the units and perform surveys. However, you can also easily integrate the receivers to work with third-party surveying software. Emlid has tutorials for integration for some of the software such as ArcGIS Survey123, QGIS, and Microsurvey FieldGenious. Tutorials are available here: docs.emlid.com/reachrs2/tutorials. Noel from Detail Survey has created a video and more information on working with 12D Field here: community.emlid.com/t/connection-over-bluetooth-to-3rd-party-device/16998/10

Happy to help! Thanks for your feedback!

Thanks for your question. Both the Reach RS2 and RS2+ have RS-232 and USB-C ports which can be configured to enable Position Streaming to third-party devices. You can read about this on more detail here: docs.emlid.com/reachrs2/reference/specifications/specs/#ports-overview You may also find a community discussion about echosounder communication with the RS2 here: community.emlid.com/t/echosounder-communication-with-rs2/26741 Let us know if that helps.

@@MangoesmappingAU yes I did read about it and it is commendable... But the cable should come with it in the pack . I shouldn't be made to buy the cable at a separate cost

@@nsikakobongeyakz4032 Thank you for your interest. The RS2+ units come with a USB-C cable and the serial cable is an optional extra for specific use cases. Let us know how we can get in touch so we can help you with your projects.

@@MangoesmappingAU thank you so much for your response

Mangoesmapping default to PPK workflows, regardless of location, due to the lower positional uncertainty associated with PPK compared with RTK surveys. It's something of a personal choice. Some people prefer RTK surveys, so they get realtime feedback regarding fix vs float, however on the sites we work, we're never had a problem getting fix with our PPK workflow. In remote locations where RTK is desirable, Emlid have a clever feature called 'Local NTRIP'. Cameron Baker does a good job describing how this can be used in conjunction with a DJI M300 here: community.emlid.com/t/m300-rs2-local-ntrip/31770

At this stage we're not aware of different brands working together - easily. We plan to conduct more in-depth testing on this in the future.

@@MangoesmappingAU thanks fo quick reply

Hi Jerusha. Were you wanting training to fly the M300 or training for conducting aerial surveys? We do not provide flight training or licensing - but could assist with survey training if this is required.

Hi Oscar, We recommend a triple magnet base as these have a much stronger holding capacity. In Australia, these are available on the Map Gear site: www.mapgear.com.au/product/triple-magnetic-mount-1/ Which country are you based in?

Hi Eric - we do a heap of projects to create known points using static logging so we will definitely make a video to share the finer points of this process. I'll shuffle it up the priority level on the 'to do' list!

@@MangoesmappingAU awesome, thanks, I really appreciate it!

@eturn23 We just published a webinar yesterday that detailed this process. I hope you find it useful!

kzbin.info/www/bejne/d5LIl5l5opqdp6csi=HsPph5CzKHknyiNX

There is an indepth PDF attached to an article here: www.mapgear.com.au/emlid-vs-trimble-gnss-receivers/

Which one is better

Thanks for your question Edmond, We do not have direct experience with the D-RTK2 base station from DJI, however we see from our client list (including major national DJI retailers) that the Emlid RS2+ is a popular and more versatile alternative. Feedback from our customers indicate that to collect GCP coordinates with a D-RTK2 is really inefficient and impractical for the following reasons: 1. You need to use your Phantom controller as your field data collector (in mode 3?) 2. Using local corrections from a 2nd D-RTK2 base uses Occusync to broadcast the RTCM corrections from base to rover, with a ground to ground range of around 1km (effectively line of sight and variable based on local conditions - in some occasions this may be longer), based on feedback from experienced users. 3. Using an Emlid receiver as a base outside of mobile coverage (as is often the case here in Australia...) would require the user to broadcast the correction via wifi from the Emlid GNSS receiver to the DJI controller, which is also used to collect the GCP coordinates from the D-RTK2 rover. Therefore, this is impractical 4. Using NTRIP, a user can consume a correction from a D-RTK2 base or from an Emlid GNSS receiver (ie. using the free Emlid Caster), and with a SIM card in both the base station and the DJI controller. 5. The poor construction of the tripod, and lack of support for datums other than WGS84 render this workflow inoperable for most surveyors. As a consequence, the majority of our DJI customers do not even purchase the D-RTK2 base, and instead purchase 2 Emlid RS2+ receivers - 1 to use as a base, and one as a rover. This is a proven, cost effective and versatile solution. In the case that you operate exclusively in mobile areas with a good CORS network, you would only require 1 RS2+ that can be used as the base during aerial surveys, to provide a RINEX file with a short baseline, and also as a rover, to coordinate your GCP's. Keep in mind that when using GNSS RTK, there is a non linear (compounding) error associated with the length of baseline between your base and rover. In an ideal world, you would keep this under a couple of km's, but of course you can stretch this out depending on the level of precision your client requires. In such a circumstance where high precision is required, I would recommend establishing an Emlid base over a known survey mark, rather than depending on a distant CORS reference station.You can then use Emlid Caster (or Emlid's local NTRIP over wifi) to broadcast a correction from your Emlid base to your drone controller.

@@MangoesmappingAU Thank you VERY much for the in-depth response! Makes good sense and I will take your advice and just go with the RS2+

Emlid have tutorials and very supportive user base via their forum, community.emlid.com/

@@MangoesmappingAU Good to know. Thanks a million once again. Blessings to all your endeavors.