CDP-300 User’s Guide
Document Rev. 01.008 DOC0500 Page 32 of 42
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4.10.2 POSN INT PERSIST
Enabling this option will cause the ISAT to retain the position interval entered by the pilot across power cycles.
The entered position interval will persist until reset by a SkyWeb user or the pilot.
4.10.3 POSN INT RANGE
This option sets the minimum and maximum threshold for the position interval that the pilot is able to change from
the Posn Interval menu. The programmable threshold can be set to anything within the allowable range of 30
seconds to 4 hours.
4.10.4 ASSET TYPE
Sets the type of asset (unit) the CDP and ISAT are installed in. Options are ATU, aircraft tracking unit or VTU,
vessel tracking unit. Only units designated as a VTU receive emergency messages from other units. When this
occurs the user must acknowledge the emergency via the CDP before being able to perform other actions.
4.10.5 SET POSN DELAY
This menu allows the user to set the number of positions that can be missed before a Position Delay alert is
triggered. This determines when the user will be alerted if their unit is experiencing position delay or, if engaged in
a Following Rendezvous, when the unit being followed is experiencing position delay.
4.11 ENCRYPTION (FW VERSION 5.0+ ONLY)
Data transmitted over the Iridium network can be encrypted for additional security. This is enabled in SkyWeb on
a per-unit basis. The ISAT’s encryption state will be indicated on the CDP with a ‘Padlock’ icon instead of the
traditional ‘*’ cursor.
While a unit is undergoing reconfiguration, an alert message “1 Alert” will be shown on the CDP display and all
normal functions associated with the system will not be available to the user. Once the unit is reconfigured, the
alert message will disappear and the cursor icon will change based on the new encryption state (padlock for
encrypted, asterisk for normal). Once the asset has been reconfigured the asset will resume normal operation.
Important: If one of the units on the rendezvous list has powered up/down while the current unit was powered off, the list may not be
accurate at first power up. An updated list should arrive within 5-10 min of power on.
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