Appareo Stratus 3i Manual

PILOT’S GUIDE

Copyright Information
Stratus 3i Pilot’s Guide, © 2018-21 Appareo Systems, LLC. All Rights
Reserved. All content within is copyrighted by Appareo Systems, LLC and
may not be reprinted without permission.
The content of this guide is furnished for informational use only, is subject
to change without notice, and should not be construed as a commitment
by the manufacturer. Appareo Systems, LLC assumes no responsibility
or liability for any errors or inaccuracies that may appear in the content
contained in this guide.
Appareo and the Appareo logo are trademarks or registered trademarks
of Appareo Systems LLC. MITRE is a registered trademark of the MITRE
Corporation. iPad is a registered trademark of Apple Inc. App Store is a
service mark of Apple Inc.
To view the current pilot’s guide, go to stratusbyappareo.com/resources.

1
Table of Contents
Warnings �������������������������������������������������������������������������������������������������� 2
Quick Start Instructions ���������������������������������������������������������������������������� 3
About Stratus 3i���������������������������������������������������������������������������������������� 4
Product Registration��������������������������������������������������������������������������������� 5
Compatible Flight Apps����������������������������������������������������������������������������� 5
Extending iPad Battery Life ���������������������������������������������������������������������� 6
Turning Receiver On or Off����������������������������������������������������������������������� 6
Reading LED Indicators���������������������������������������������������������������������������� 7
Connecting to Stratus 3i ��������������������������������������������������������������������������� 9
Adjusting Receiver Settings�������������������������������������������������������������������� 10
Calibrating Stratus 3i ������������������������������������������������������������������������������ 10
Using AHRS�������������������������������������������������������������������������������������������� 11
Using Stratus 3i with ForeFlight Mobile�������������������������������������������������� 12
Viewing ADS-B Trafc ���������������������������������������������������������������������������� 13
Updating Firmware ��������������������������������������������������������������������������������� 15
Resetting to Factory Settings ����������������������������������������������������������������� 15

2
Warnings
Data
• Use of portable electronic devices while in ight may be hazardous. Use of
Stratus portable receivers in an operating aircraft is subject to approval by the
Pilot in Command�
• Position information provided by Stratus portable receivers should be used for
situational awareness only and should not be used as your primary navigation
source�
• AHRS (attitude heading reference system) data provided by Stratus portable
receivers should be used for supplemental purposes only�
• Stratus 3i does not contain a battery, unlike other Stratus portable receivers�
Do not rely on Stratus 3i to be a backup AHRS in the event of aircraft power
loss�
Weather
• Weather information provided by Stratus portable receivers is delayed and
may not always be available� Do not rely solely on the information provided by
the receiver to make tactical decisions�
Trafc
• Stratus portable receivers do not replace the need for collision avoidance
systems or see-and-avoid procedures� Many aircraft are not currently ADS-B
Out equipped and therefore not detectable by Stratus portable receivers�

3
Quick Start Instructions
For installation instructions, refer to the Stratus 3i Installation Guide�
Stratus 3i is battery-less and requires aircraft power for operation�
NOTE: When Stratus 3i is connected to the power cable, it will
automatically power on when aircraft power is applied�
1� Connect your tablet or phone to the Stratus 3i Wi-Fi network from the
Settings menu�
2� If you’re ying with an app other than Stratus Insight, ForeFlight
Mobile, or Stratus Horizon Pro, enable Open ADS-B mode in Stratus
Horizon Pro.
3� Open a compatible ight app and conrm connection to receiver.
NOTE: Because ADS-B signals are broadcast by ground stations,
Stratus 3i will not receive weather and trafc information while it is on
the ground �

4
About Stratus 3i
Stratus 3i is a portable receiver that works with Stratus Insight, Stratus
Horizon Pro, ForeFlight Mobile, and other compatible ight apps. It
provides pilots with subscription-free in-ight weather and trafc and is
a source of accurate WAAS (Wide Area Augmentation System) GPS
position� It receives ADS-B (Automatic Dependent Surveillance-Broadcast)
FIS-B (weather information),TIS-B (trafc information), and other related
data and broadcasts it to compatible ight apps via a Wi-Fi network.
Stratus 3i also includes AHRS (attitude heading reference system), a ight
data recorder, and pressure altitude sensor� See pages 11 and 12 for more
information about these features�
Stratus portable receivers are classied as PEDs (Personal Electronic
Devices) and complement the instrument panel in your aircraft� If there
is a discrepancy between the receiver and the instrument panel, use the
readings on your instrument panel�

5
Product Registration
Your receiver is automatically registered with the retailer after purchase�
The Stratus Portable Receiver Limited Warranty is valid two years after
the receiver is shipped from the retailer and is non-transferable�
Compatible Flight Apps
Stratus 3 is optimized for Stratus Insight, Stratus Horizon Pro, and
Foreight Mobile, but also offers a GDL 90 interface for third-party apps
when Open ADS-B mode is enabled in the settings page of Stratus
Horizon Pro.
Stratus Horizon Pro displays AHRS information when connected to
Stratus 3� The app also provides ATC audio playback and transcription
features to Stratus portable receivers and other devices�
Stratus Insight and ForeFlight Mobile display AHRS, ADS-B weather and
ADS-B trafc. Other Stratus 3i compatible features include Synthetic
Vision, pressure altitude, and ight data recording. For more information
about Stratus Insight, refer to the Stratus Insight Pilot’s Guide�
For a list of other compatible ight apps, visit stratusbyappareo�com/
stratus-3-compatible-apps�
NOTE: You must download Stratus Horizon Pro to apply Stratus 3i
rmware updates and enable open ADS-B mode.

6
Extending iPad Battery Life
To extend your iPad battery life, enable Stratus Replay in ForeFlight
Mobile� This allows the iPad to sleep or switch to a different app� Once
you return to ForeFlight Mobile, the receiver will automatically send any
missed ADS-B weather information to the app�
Turning Receiver On or Off
If the receiver is connected to the power cable, it will automatically power
on when aircraft power is applied. All LED indicators will briey illuminate
red and then green as the receiver powers on and auto-calibrates� If
Stratus 3i is moved after being powered on, it must be re-calibrated in
Stratus Horizon Pro or ForeFlight Mobile.

7
Reading LED Indicators
Label LED Color LED Status Meaning
GPS
Green Solid 3-D GPS lock achieved�
Yellow Flashing No GPS lock, searching for signal�
Off Off Receiver is powered off�
Power Green Flashing Receiver is powered on and operational�
Off Off No external power is being received; receiver
is powered off�
ADS-B
Green Solid ADS-B FIS-B signal has been received from
multiple towers in the past three seconds�
Yellow Solid ADS-B FIS-B signal has been received from
one tower in the past three seconds�
Off Off ADS-B FIS-B signal has not been received in
the past three seconds�

8
Label LED Color LED Status Meaning
All
indicators
Briey red
then green Solid Receiver is powering on and calibrating�
Red Flashing Built-in-test failure� Contact your original
retailer for assistance�
Yellow
Flashing Installing rmware update.
Solid Applying rmware update.
Green
Solid for two
seconds Firmware update complete�
Off for ve
seconds, then
ashing
Power button is pressed� After 30 seconds,
factory reset process begins�
Green to
yellow to
green
Solid Factory reset is complete�

9
Connecting to Stratus 3i
Your tablet or phone must be connected to the Stratus Wi-Fi network
(not Bluetooth) for the receiver to communicate with the app� Multiple
devices in the cockpit may be connected to the receiver at the same time�
Receiver Wi-Fi network security can be congured in Stratus Horizon Pro
or ForeFlight Mobile�
NOTE: The Stratus Wi-Fi network provides a wireless connection between
the receiver and ight apps. It does not provide an internet connection.
1� Tap the Settings icon on your tablet or phone’s home screen�
2� Tap Wi-Fi�
3� Make sure that Wi-Fi is enabled� Tap the Stratus wireless network,
displayed under Choose a Network to connect� Your Wi-Fi network
name is on the label on the back of your receiver�
When your tablet or phone is connected to the Stratus wireless
network, a checkmark will appear next to the network name.
4� If you’re ying with an app other than Stratus Insight, ForeFlight
Mobile, or Stratus Horizon Pro, enable Open ADS-B mode in
Stratus Horizon Pro.
5� Verify that the receiver is connected in the settings page of
Stratus Insight, Stratus Horizon Pro or the Stratus Status page of
ForeFlight Mobile�

10
Adjusting Receiver Settings
The settings page in Stratus Horizon Pro and the Stratus Status page in
ForeFlight Mobile display general information about the receiver, such
as its serial number, and rmware version. You can also adjust receiver
settings such as LED brightness on these pages�
• To access the settings page in Stratus Horizon Pro, tap in the
lower left corner�
• To access the Stratus Status page in ForeFlight Mobile, tap the More
tab, then tap Devices� Tap the Stratus Connected box�
Calibrating Stratus 3i
Stratus 3i is automatically calibrated to its mounting position a few
seconds after being powered on�
If your aircraft isn’t straight and level, the alignment can be manually
adjusted in either app�

11
Using AHRS
Stratus 3i can be used for backup AHRS (attitude, heading, and
reference system) in Stratus Insight, Stratus Horizon Pro, or ForeFlight
Mobile to enhance situational awareness�
For the most accurate AHRS information, ensure that the receiver is
mounted parallel with the centerline of the aircraft running front to back,
and the arrow on the bottom of the receiver points in the direction of
ight.
WARNING: AHRS data provided by the receiver should be used for
supplemental purposes only�

12
Using Stratus Insight and ForeFlight Mobile
Using Stratus 3i with Stratus Insight or ForeFlight Mobile allows
maximum functionality and features� Some compatible features are listed
below�
Weather
Stratus 3i receives ADS-B weather data and relays this information to
your app�
Flight Data Recording
Stratus 3i’s ight data recorder records position, speed, attitude, and
barometric altitude data during each ight. You can manually record a
ight or enable automatic ight recording in your app. Flights can be
exported from the app and viewed in Stratus Insight or ForeFlight Mobile�
About 20 hours of data can be stored in Stratus 3i’s built-in memory�
Pressure Altitude Sensing
Stratus 3i has a pressure altitude sensor that sends uncorrected
barometric pressure information to your app� This information is viewable
while using the app and is also recorded in the ight data log.
Synthetic Vision
Using the altitude information provided by Stratus 3i, Synthetic Vision
shows a 3-D picture of terrain and obstacles where you are ying.
�

13
Viewing ADS-B Trafc
Stratus 3i receives 978 MHz and 1090 MHz trafc information from
ADS-B ground stations and ADS-B Out-equipped aircraft and relays it to
Stratus Insight and other compatible apps�
If air trafc data is detected by the receiver, it will display in your app
relative to your aircraft�
Air-to-Air Trafc
Stratus 3i will only receive air-to-air broadcasts from other aircraft if they
are ADS-B Out equipped and within range of the receiver. Air trafc that
is not equipped with a UAT ADS-B Out or Mode S Extended Squitter
transmitter will not be detected by the receiver air-to-air�
Rebroadcast Trafc
Using its network of ADS-B ground stations, the FAA can rebroadcast
a custom trafc report to ADS-B Out equipped aircraft that are within
a 15 nautical mile radius and within 3500 feet in altitude of the ADS-B
Out aircraft� If your aircraft is not ADS-B Out equipped, it will not receive
rebroadcast trafc unless it is within range of an ADS-B Out equipped
aircraft that triggers it� If your aircraft is ADS-B Out equipped but is not
in contact with an ADS-B ground station, it will not receive rebroadcast
trafc.

14
The FAA can rebroadcast trafc information about aircraft equipped with
the following transponder types: Mode C, Mode S, Mode ES, and UAT�
Mode A transponders and primary radar targets detected by the FAA are
not included in rebroadcasted trafc reports.
Since not all aircraft are ADS-B Out equipped and not all trafc is
rebroadcast, the use of the receiver does not eliminate the need for “see-
and-avoid” procedures�
Stratus 3i is not an active trafc interrogation system or ADS-B Out
device�
NOTE: Stratus 3i is not likely to receive weather or rebroadcast trafc
information on the ground because ADS-B information is broadcast
by ground stations� The altitude at which Stratus 3i begins to receive
weather and rebroadcast trafc information will vary depending on the
distance to nearby towers and terrain and other obstacles that may be
between the receiver and a tower�

15
Updating Firmware
WARNING: Do not attempt to apply rmware updates while in ight.
Receiver rmware updates will be released through Stratus Horizon Pro
in-app updates� These updates may enable new capabilities or address
known issues� When you are connected to your receiver and open the
Stratus Horizon Pro app, a message will alert you that there is a rmware
update�
To apply the update, follow the on-screen instructions� It may take
several minutes to update the receiver’s rmware. During the update,
do not power off your receiver or device running the app, and do not
close the app� You may need to reconnect to the app after the update is
complete�
Resetting to Factory Settings
Press and hold the power button for 30 seconds while the receiver is on to
return it to its default factory settings� When the factory reset is complete,
all of the LED indicators change from green to yellow to green� The factory
reset auto-calibrates Stratus 3i and recongures it to its default settings. If
you’re ying with an app other than Stratus Insight, ForeFlight Mobile, or
Stratus Horizon Pro, re-enable Open ADS-B mode in Stratus Horizon Pro.
NOTE: Resetting to factory settings will not delete ight data recorder
logs�

16
600890-000064 Rev 1�2
FCC Declaration
This device complies with Part 15 of the FCC limits for Class B digital
devices� This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications�
Furthermore, there is no guarantee that interference will not occur in a
particular installation�
If this equipment does cause harmful interference, the user is
encouraged to try to correct the interference by relocating the equipment
or connecting the equipment to a different circuit than the affected
equipment. Consult an authorized dealer or other qualied avionics
technician for additional help if these remedies do not correct the
problem�
Operation of this device is subject to the following conditions: (1) This
device may not cause harmful interference, and (2) this device must
accept any interference received, including interference that may cause
undesired operation�

Servicing
Stratus 3i is not eld-serviceable. If you believe your receiver requires
repair or maintenance, contact the retailer you purchased your receiver
from for further instruction.
Repairs made outside of a Stratus-approved repair center could void the
warranty and may result in further damage to the device.
Warranty
The Stratus Limited Warranty is valid two years after your receiver is
shipped from the retailer. To view the full warranty, visit
stratusbyappareo.com/resources.

For product support, contact your dealer or original retailer.
Appareo
[email protected]
stratusbyappareo.com/support
FAQs & Troubleshooting
Answers to frequently asked questions and troubleshooting are found at
stratusbyappareo.com/receiver-faqs.
Support