Dynon Avionics SkyView System Installation Guide - Manual (Page 224)

SV-XPNDR-261/262 Installation, Configuration, and Testing
11-4 SkyView System Installation Guide - Revision S
Figure 76 – SV-XPNDR-261/262 Dimensions with Mounting Tray (dimensions in millimeters)
Installation Instructions
The SV-XPNDR-261/262 Mode S transponder is designed to be mounted in any convenient
location in the cockpit, the cabin, or an avionics bay.
The following installation procedure should be followed, remembering to allow adequate space
for installation of cables and connectors.

Select a position in the aircraft that is not too close to any high external heat source.
(The SV-XPNDR-261/262 is not a significant heat source itself and does not need to be kept
away from other devices for this reason).

Avoid sharp bends and placing the cables too near to the aircraft control cables.

Secure the mounting tray to the aircraft via the three (3) mounting holes in the tray.
The tray should be mounted to a flat surface - it is important that the tray is supported at
the dimples as well as the three mounting points.

Put the SV-XPNDR-261/262 transponder into the secured mounting tray by hooking the
connector end under the lip on the tray.

Lock the SV-XPNDR-261/262 transponder into the mounting tray by clipping the
retaining wire over the lugs on the opposite end.
Additional items you will require, but which are not in the SV-XPNDR-261/262 package, include:

Antenna and fixing hardware. The SV-XPNDR-261/262 is compatible with transponder
antennas commonly available.

Cables and male TNC connector. You need to supply and fabricate all required cables.
Guidance on cable types is given below.

Mounting hardware: To secure the transponder tray to the airframe you will need at
least 3 flat head screws and three self-locking nuts. If the aircraft does not have existing
mounting provisions you may need to fabricate additional brackets to support the
transponder tray.