This guide explains how to tune LoRa radios on Reach base and rover for RTK.
There are several factors that may affect the range of LoRa radios built in Reach RS/RS+ and Reach RS2:
Go through this simple check-list to make sure your setup is optimal:
Check that LoRa antennas are firmly attached
Make sure you specified the same LoRa settings in Base mode tab on the base unit and in Correction Input on the rover. Here are the recommended settings:
To improve the LoRa range even further, use the suggestions below.
High air data rate provides a more stable correction stream that allows transmitting a larger number of RTCM3 messages. Choosing lower values of air data rate on the contrary limits the RTCM3 messages number but may significantly increase the baseline.
The lower the air rate, the longer the working distance will be.
Sometimes allowed frequency range in your working area can be affected by some local factors. That is why it is important to find a frequency that works efficiently for your environmental conditions.
Check that you set up the default settings for LoRa mentioned above
Double check which frequency ranges can be used in your area
Some frequency bands might not be allowed in your region. These limitations are currently applied automatically in ReachView for some countries.
Make sure you set up the same frequency on both base and rover devices: