Are you using NucleoF429ZI , we are using DWM3000evb with it
If you are, can you share your e-mail with us because we are University students and we can’t connect with “DecaPDOARTLS” also with “DecaRanging”. So, we need some help about what we should do.
The antenna delays of the antenna elements / RF traces can be different, causing an offset in the PDoA measurement.
This can be accounted for by placing the tag in front of the node, preferably at a 1 meter distance, and clicking the “Calibrate” button. See section 4.1.3 Enabling the Correction Algorithm in DW3000_Arduino_Shield_QSG_STM.pdf or DW3000_Arduino_Shield_QSG_Nordic.pdf
The jumping in range could be explained by incorrect orientation of the devices. This can cause the RF traces to pick up the radio iof the antennas, causing the channel impulse analyzer to find incorrect first paths. See section 2 in the QSGs:
Hi @Malan
Im not familiar with the SW so I cant help you here. But try to move the nodes far away from your metal table (if it is metal). It could cause a lot of weird behavior. Also table corners could affect the measurement (reflection). Try to move it up by 20-30cm (use carboard box, plywood something and etc)
In general UWB is sensitive to any object (especially metallic) close to antenna.
Hi @Malan
Im not an antenna guru. However position TN in car is not an easy task - I would try hang it on rear mirror or stick it to area behind back door.
Re iPhone) I dont have such experience (Im happy Android user) but from my knowledge the antennas on iPhone are more or less directional (you cannot get signal though the display area). From what I heard you need to hold/position the iPhone correct to make it work OK. So they bypassing the limits by antenna design and by instructing users how to work with it 8-).