1 GENERAL INFORMATION
1.1 Introduction
The information contained within this Installation Manual describes the features,
functions, technical characteristics, components, approval procedures, installation
considerations, setup procedures, checkout procedures and instructions for
continued airworthiness for the Sandel Avionics ST3400 TAWS/RMI.
Sandel Avionics ST3400 TAWS/RMI may be covered by one or more U.S. and
foreign patents and pending patent applications, including U.S. Patent Nos.
6,507,288, 6,489,916, and 6,259,378.
1.1.1 MOD-A Status
Certain enhancements exist on units marked as “MOD-A” on the dataplate.
These enhancements cannot be retrofitted to to non MOD-A units.
1. The display has higher resolution
2. 2
nd
audio output available which can drive 8 ohm speaker directly
3. Availability of auto dimming of the display from the Pilot’s Menu.
4. Cooling Fan will cycle off below approximately 0° C
5. Self-test will operate all annunciator outputs.
6. Capability of interfacing to CIC brand analog airdata Computers
Mod-A status can be determined from the data plate, or from the Pilot’s Menu
where the Mod-A status is shown in the upper right of the screen.
NOTE: See section on software loading for other information about MOD-A.
1.1.2 MOD-B Status
MOD-B units contain the same enhancements as MOD-A units and have even
higher display resolution.
Mod-B status can be determined from the TSO label, or from the Pilot’s Menu
where the Mod-B status is shown in the upper right of the screen.
NOTE: See section on software loading for other information about MOD-B.
1.2 Descriptions
1.2.1 ST3400 TAWS/RMI Description
The Sandel ST3400 is a self-contained TAWS (Terrain Awareness Warning
System) solution that includes a TAWS computer and an integrated full-color
screen, built within a standard 3-inch instrument chassis.
It can be used as a direct replacement for a currently installed RMI (Radio
Magnetic Indicator).
ST3400 INSTALLATION MANUAL 82002-IM-L
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