600840-000037 Stratus ESG Installation Instructions (Experimental)
Rev. 1.2
Last Revised: May 9, 2016
Page 16 of 52
If meeting the specifications of TSO-C190, the GPS antenna must meet the following:
•
Powered at 5 Volts
•
Gain of 30 dB +- 5 dB
•
Qualified DO-160E Lightning, Zone 2A
•
Qualified DO-160E Icing, Category C
Alternatively, the following TSO-C144 antenna is compatible:
Manufacturer
Part Number
AntCom
42G15A-XT-1
Table 8: Compatible GPS antenna
The antenna should be installed using the antenna manufacturer’s instructions. The antenna
must also be installed at least 2 feet away from any other comm transmitter or transmitter
antenna in a location that does not break line of sight with satellites. Typical installation
locations are on the top of the aircraft or on the empennage with consideration for line of sight
with satellites.
All wiring should have a cable loss of minimum 2 dB and maximum 7 dB. The standard
installation has 3 BNC/TNC connections. Any additional BNC/TNC connections should estimate
a 0.2 dB loss per connection and be taken into consideration for maximum dB loss.
NOTE
: Using RG400 the minimum cable length is 10 feet and the maximum length is 37 feet. If
the installation requires you to go outside of these length specifications, the selection of coax
should be 50 ohm.
If installing on a pressurized aircraft, follow the instructions as indicated by an aircraft STC.
Otherwise, seek other approval. Other provisions could be made by contacting your Regional
Aircraft Certification Office (ACO).
1.6.1.2. Transponder antenna
Stratus ESG requires a passive antenna with the specifications of TSO-C74d or TSO-C66. The
following antenna is an example of an antenna that meets these specifications. The installation
is not limited to this antenna.
Manufacturer
Part Number
Rami
AV-74
Table 9: Compatible transponder antenna
The antenna should be installed using the antenna manufacturer’s instructions. The antenna
should be mounted vertically on the bottom of the aircraft and a minimum of:
•
6 feet away from DME antenna
•
3 feet away from ADF antenna or any other communication antenna
•
3 feet away from TCAS antenna
•
3 feet away from Stratus ESG itself to prevent self-interference