User's Manual

Y1-03-0343 Rev. T1 Company Confidential 13
User Interface: Digital Display during Operation
(specific to PLB-425 model only)
The following table describes the visual feedback on the digital display that the PLB-425
provides during activation.
Digital Display Feedback During Activation
The ACR logo appears indicating the beacon has been activated.
The system reports that it is in the process of acquiring GPS. While
acquiring GPS connection, the system reminds you that for optimum
GPS performance, position the beacon so that it has a clear view of
the sky. It will also recommend other useful operating advise such as,
“Do Not Hold Antenna”.
The system will notify you when it is about to transmit your 406 MHz
emergency distress signal. It will countdown from 3 prior to sending.
You will receive a confirmation message once a 406 MHz Emergency
Signal has been transmitted.
The system reports that the 121.5 MHz homing signal is on. Search
and Rescue (SAR) personnel use this frequency to triangulate your
location when arriving close to the scene.
The system reports recently acquired GPS coordinates.
The beacon will continue to send your distress message for the life of the battery (minimum 24
hours). While valid GPS coordinates are available, the on-screen sequence will reflect the table
above when each distress message is sent. If valid GPS coordinates are not obtained after initial
activation, your distress message will continue to be sent without GPS coordinates until valid
GPS coordinates are obtained. The on-screen sequence when valid GPS coordinates are not
available will reflect the table above, except for the screen showing the GPS coordinates.