This chart shows the activations, battery voltage, RF temperature and relative humidity inside the radome for selected MetaSensing ECR-C transponders. The labels on the activation (act) time line indicate (re-)boot events and a value of 1 indicates that the transponder was active.

When the value for the activation (act) time line is -1 the internal clock of the ECR was off by one Month (the clock has been corrected in the chart). If an activation occurs during this periods it will most probably happen at the incorrect time and the radar satellite may not acquire data. Also, after the clock has been reset to the correct value, the ECR device stops the hourly status reports until the next reboot.