3.1 Throughout the testing and maintenance process, great care must be taken to avoid the transmission of false distress
alerts. The transmissions may be picked up by aircraft as well
as satellites.
3.2 A radio-frequency-screened room or enclosure
should be used for all maintenance procedures involving, or likely
to involve, any transmission from an EPIRB.
3.3 Provision of a 121.5 MHz monitor receiver
is required; this will pick up the homing transmitter and give a warning
if the EPIRB is accidentally activated outside the screened enclosure.
3.4 If a distress signal is transmitted accidentally,
the local RCC should be contacted immediately and informed of the
co-ordinates of the test site.