SkyNode
®
S100 Installation and Operation Manual
Page
12
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32
S100-400, R2.01
4.3.4.
Coax Cables
The length of the coaxial cables to both the GPS and Iridium antennas (or combination) is paramount to
the performance of the S100 system. Both should be kept to a strict minimum, and this factor should be
taken into consideration when planning the installation.
4.3.5.
Antenna(s) location
The antenna(s) should be located with an unobstructed view of the sky when the aircraft is in level
flight. Any obstruction will reduce the system capabilities. On helicopters, and if possible, avoid
installation of
the antennas under the rotor. Although, many “under the rotor” installations have proven
satisfactory, it is also best to keep the antenna(s) as horizontal as possible in relation to the standard
line of flight.
4.3.6.
S100 location
The S100 can be located anywhere in the airframe as long as the location is compatible with the
Environment that the S100 was qualified to (See Appendix C). It is also mandatory that the S100 be
installed so that the side of the unit that shows the status lights can be accessible on the ground, with
power “ON”, for maintenance and troubleshooting.
4.3.7.
Testing
The installation of the S100 does require ground testing. The guidelines for such tests are outlined in
Section 6.0 of this Installation Manual.
4.3.8.
General Guidelines for Installation
When installing the S100, follow the guidelines provided in the following document and the correct
Chapter and Section as appropriate for the installation performed:
FAA AC43.13-1B, Chapter 11
4.4.
S100 Installation
4.4.1.
Mounting
The S100 may be mounted in any orientation. The S100 is designed to be hard mounted using four #8
or #10 screws and associated waved (lock) washers. No shock mounts are necessary unless the unit
is mounted outside the vibration limits outlined in Appendix C.
4.4.2.
Grounding and Bonding
The S100 is bonded to the airframe through pin connections. There is no need for special bonding
requirements.