User`s guide

SkyTrac Systems Ltd.
Document Rev. 01.007 DOC0102 Page 7 of 23
Restricted Proprietary and Confidential Information
1.5 System Requirements
An installed ISAT-100 including antenna and an installed CDU-250 (i.e. DVI-250 paired with
CDP-250) are required with the following firmware revisions or higher.
• ISAT-100 Firmware version – 2.18 +
• DVI-250 Firmware version – 2.00 +
• CDP-250 Firmware version – 1.01 +
An open view of the sky by the ISAT antenna is required for communications.
1.6 Acronyms
Acronym Description
STS SkyTrac Systems Ltd.
ISAT SkyTrac’s ISAT-100 Flight Following system.
CDU Cockpit Display Unit
CDP Cockpit Display Panel
DVI Dispatch Voice Interface
DTMF Dual Tone Multi-Frequency
FTS FlightTrac Suite software program
2 GENERAL
2.1 Setup
The CDU-250 installation requires the installation of both the DVI-250 and the CDP-250.
Refer to DVI-250 System Operation and Installation Manual (DOC0003), CDP-250 Mod-A
System Operation and Installation Manual (DOC0099) for details.
The CDU-250 does not process or provide audio signals, except for the optional external
buzzer. Audio signals are provided directly from the ISAT-100 to aircraft audio systems.
Refer to the latest revision of the ISAT-100 System Installation Manual (ISAT-100-OPD-
SOI) for details on how to setup the base audio levels during installation.
3 OPERATION
Caution: While in a voice call, the ISAT is unable to send position reports. Users
should limit the length of the voice call in order to allow position reports to be
transmitted in a timely manner. All position reports are queued and delivered when
the call is finished.