1 Perform task “PMA01: Stop and secure Antenna System” (p. 37).
2 Inspect the humidity indicator on the
desiccator in the SAP Management
Unit. The location of the SAP Man-
agement Unit and the desiccator is
shown in fig. 3.26 & 3.27.
The humidity indicator is split into two
halves (see fig. 3.28), and shows ris-
ing relative humidity, through 50% to
60%. Each half changes from blue to
pink when the corresponding level of
humidity is reached.
If 50% relative humidity has not been
reached, i.e. the 50% sector has not
turned pink, the system can continue
operation with the present desicca-
tor.