Groundhawk requires an exact location in order to conduct the mapping.

There are two requirements for getting a good GPS signal: satellite visibility, i.e. outdoor open space,
mobile data network to receive GPS correction data i.e. RTK.

In normal conditions, a GPS signal is gained in 30-90 seconds. If it takes more than 3 minutes, there is a problem with getting the signal. 

If you have problems getting a clear GPS signal, take the following steps:

1. Ensure that you are in an open area and that you have a good visibility of the horizon in most directions. If not, walk to a nearby place that is more open where you can start the mapping even if there is no trench there.
   
   
2. Ensure that you have a mobile data connection in the device. If not, you can try sharing WIFI from a mobile phone with another mobile network provider. If there is no mobile network, you cannot map with Groundhawk.
   
   
3. Ensure that the USB cable is connected. You can take it out and insert again to ensure it works.
   
   
4. Try restarting the application if none of the above works.
   
   
5. If you are still not getting a clear GPS signal, please contact support immediately.

Groundhawk collects a lot of data and sometimes the mobile data connection is insufficient to transfer it.  

If you encounter a problem during the upload, Groundhawk will give you an option to either retry or save the mapping for later upload.  

When you saved the mapping for later upload, the next time you log in you will be asked to upload all the mappings that were not uploaded completely. In this way you can upload mappings by just logging in on the device when you are back at the office.

Some features like cabinets, continuation pieces, sonds etc. need to be mapped by point mapping.

This is how it is done:

1. Press the point mapping button on bottom right of the screen

2. Point at the feature

3. Press again Point mapping -button and select the feature. Optionally give a text explanation for it.

Different types of points:

Cabinets. Map the cabinets by pointing at the center of the cabinet at ground level. It is a good idea to give the cabinet a number in the text field. Take also some photos of the cables and connections in the cabinet!

Continuation piece. Map the exact point where the continuation piece is in the ground

Transformer stations. Map each of the 4 corners at ground level

Road crossings. Point at the end of the pipe under the road

Street lights. Point at the center of the pole at ground level

Groundhawk supports mapping of multiple cables. When you start mapping you are asked to select the cables in the trench. You are limited to 3 different cable types and corresponding protections.

You should always ask project management for instructions on what to map, but a general rule of thumb is that if there are more than 3 cables, it's needed to map the different types of cables.

When you encounter e.g.:

1) a new cable joining or ending,
2) a protection is added or removed,

press the cable selector

and map the point from where the new configuration takes place.

Good to know: 

For each cable selection you make, a photo is also automatically captured.