TTK1000 accuracy and RF profiles

Hello,

Could anyone tell roughly the accuracy of the TTK1000 Kits?

My team has tried develop a wireless clock sync TDOA system using DWM1001-DEV boards as both anchors and tags and we get as best as 50 cm accuracy. I am trying to figure out how to improve the accuracy of my system so here are my questions.

  1. As far as I understand, the clock generating circuit on TTK1000’s anchor board uses TXCO which is better than the XTAL used on DWM1001-DEV. So would it help to improve an accuracy to use TXCO on anchor boards?

  2. I know from Sewio’s website that by using different channels or RF profiles for communicating blinks and sync messages, it would help reduce the collision. However, I couldn’t figure out what exactly the RF profiles are and where could I set those parameters. I’ve searched through DWM1000 User Manual and Datasheet but with no luck.

Thank you in advance.
Charuwalee