Installation Instructions

Antenna Delay Calibration
There are differences between antennas, so you need to calibrate in the device to obtain
the prepared antenna delay parameters to ensure the accuracy of ranging. The calibration
method is as follows:
Command used Set antenna_delay 16520
instruction:
Set（command）
antenna_delay（Antenna Delay Parameters）
16520（The value of the set antenna delay, decimal）
Test Calibration Method:
Anchor ------------------------------------ Anchor
After the anchor and anchor ranging are stable, take the more stable value and average it to
get RNG_AVERAGE;
Use accurate distance measurement equipment (such as total station, etc.) to measure the
actual distance between the antenna end of the tag and the antenna end of the anchor as
RNG_ACTUAL(Following Distance)；
Fixed label antenna_delay value，Modify anchor antenna_delay value until
| RNG_AVERAGE - RNG_ACTUAL |Absolute value < System allowable error value
Note: Non-professional installers are not allowed to remove or install antennas