NextNav TerraPoiNT Manuel utilisateur

TerraPoiNT Portable Tracker (TPT) User Guide Version No: 0.7

NextNav LLC Confidential and Proprietary Page 1 of 26

TerraPoiNT Portable Tracker (TPT) User Guide

Version 0.7

NextNav Confidential and Proprietary

All data and information contained in or disclosed by this document is confidential and proprietary

information of NextNav, LLC and all rights therein are expressly reserved. By accepting this material, the

recipient agrees that this material and the information contained therein is to be held in confidence and in

trust and will not be disseminated, distributed, copied, reproduced in whole or in part, nor its contents

revealed in any manner to others without the express written permission of NextNav LLC.

No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise,

without the prior written permission of the publisher. Material contained herein is reserved for members of

NextNav and designated contractors, and therefore is not to be quoted, cited, or shown outside the company

without written permission.

TerraPoiNT Portable Tracker (TPT) User Guide Version No: 0.7

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History

Version

Date

Author

Notes

M ar

ch, 2021

Purna Nannapaneni

M arch, 2021

Purna Nannapaneni

0.4 26

M arch, 2021 Purna Nannapaneni 3

0.5 26

April, 2021 Purna Nannapaneni 5

0.6 27

April, 2021 Purna Nannapaneni 6

0.7 24

M ay, 2021 Purna Nannapaneni 7

Notes:

1. Creat ed first draft version of docum ent for internal review.

2. Updates :

a. Changed naming to TerraPoiNT Portable Tracker (TPT).

b. Added sections on unit pow ering ON/ OFF, firmware versions.

c. Updated phone images.

d. Added t est procedure flow chart.

3. Updates :

a. Added information on TerraPoiNT Tracker(TPT) App installation from App center.

4. Updates:

a. M inor updates.

5. Updates:

a. Updated RF Exposure description and FCC Label Information.

6. Updates:

a. M odified Phone app snapshot s.

7. Updates:

a. Rem oved informat ion related to ext ernal battery pack.

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Table of Contents

History........................................................................................................................................................................... 2

1FCC statements:................................................................................................................................................... 4

2Scope...................................................................................................................................................................... 5

3Introduction........................................................................................................................................................... 6

4Receiver – TPT...................................................................................................................................................... 8

4.1 Model Name........................................................................................................................................................................................ 8

4.2 Power .................................................................................................................................................................................................. 8

4.3 Powering ON the Receiver TPT ........................................................................................................................................................ 9

4.4 Powering OFF the Receiver TPT ...................................................................................................................................................... 9

4.5 Charging Receiver TPT:....................................................................................................................................................................10

5Phone App - TPT .................................................................................................................................................11

5.1 Receiver TPT and Phone App (TPT App):.......................................................................................................................................11

5.2 Android Platform Requirements........................................................................................................................................................11

5.3 TerraPoiNT Tracker(TPT) App Release via App Center.................................................................................................................12

6Altitude and Location Test Procedure. ...........................................................................................................13

6.1 Test Flow:...........................................................................................................................................................................................13

6.3 Phone Interface: Bluetooth Pairing & Running of TPT App............................................................................................................14

6.4 Debug/Maintenance Interfaces.........................................................................................................................................................24

6.5 User Interface ....................................................................................................................................................................................24

6.6 Firmware & Software Versions .........................................................................................................................................................24

7Mechanical Specifications – TPT .....................................................................................................................25

8Environmental Characteristics .........................................................................................................................26

9Interference Considerations .............................................................................................................................26

10 FCC Label..........................................................................................................................................................26

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1FCC statements:

This device complies with part 15 of the FCC rules. Operation is subject t o the following two conditions: (1) this device

may not cause harmful int erference, and (2) this device must accept any interference received, including interference

that m ay cause undesired operation.

NOTE: The manufacturer is not responsible for any radio or TV interference caused by unaut horized modifications or

changes to this equipm ent. Such m odifications or changes could void the user’s authority to operate the equipment .

NOTE: This equipment has been tested and found to comply w ith the limit s for a Class B digital device, pursuant to part

15 of t he FCC Rules. These limit s are designed to provide reasonable protection against harmful interference in a

residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and

used in accordance with the instructions, m ay cause harmful interference to radio communications. However, there is

no guarantee that interference w ill not occur in a particular installation. If this equipment does cause harmful

interference to radio or t elevision reception, which can be determined by turning the equipment off and on, the user is

encouraged to t ry to correct t he interference by one or more of the following measures:

‐ Reorient or relocate the receiving ant enna.

‐ Increase the separation between the equipment and receiver.

‐Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

‐Consult the dealer or an experienced radio/TV technician for help.

RF exposure:

The device has been evaluated to meet general RF exposure requirement , The device can be used in portable exposure

condit ion without restriction. Federal Comm unication Commission (FCC) Radiat ion Exposure Statement Pow er is so low

that no RF exposure calculation is needed.

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2Scope

This Receiver User Guide describes all electrical, mechanical, operat ional and support aspects of TerraPoiNT Portable

Tracker (TPT) M BS receiver. The TPT is very sm all and low power that supports single chip version of NextNav’s M BS

Receiver Technology along with GPSReceiver and m ultit ude of sensors.

This m anual reflects t he lat est iteration of t he TPT w ith t he 2021 hardw are and softw are updates.

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3Introduction

M et ropolitan Beacon System (M BS) is terrestrial location system designed to supplement GPS in areas where GPSsignals

are degraded or denied, such as indoors or in urban canyons. The terrestrially-located beacon transmitters radiate a

highly synchronized, spread-spectrum signal that is similar in many respects to t he L1 C/ A signal, and enables

appropriat ely-equipped receivers to trilaterat e their position. In addition to traditional almanac information, M BS

encodes barometric correction information to enable receivers that have a baromet ric pressure sensor to det ermine

their altitude with very high accuracy. Additional information about the M BSsignals can be found in the M BSInterface

Control Document (ICD) [1]. NextNav M BSbeacons operate on Part 90 M -LM Sspectrum licenses that cover 919.75M Hz

- 927.75M Hz, with permitted ERP up to 30W. The system currently supports a 10Hz location update rate, w ith position

computed on t he receiver with no need for ext ernal information. Like GPS, assisted modes of operation are supported.

A high-level system architecture of M BS is show n in figure below.

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The block diagram of the TPT class receivers shown below .

The TPT receiver system comprises of a measurement engine (M E) block, a compute module block, gps receiver and

different sensors. The measurement engine block performs the acquisition and tracking of M BSbeacon signals. The

compute module receives the M E data and computes t he ranges and trilateration to produce location fixes at 10Hz rate.

The receiver is designed t o int eract and deliver location fixes to a host platform (Smart Phone) via Bluetooth.

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4Receiver – TPT

4.1 M odel Name

The TPT’s unit M odel Name is NN-TR02-xx

4.2 Power

The TPT Unit runs on internal battery. The TPT can be plugged to a Host Comput er t hru a Type-C USB Connector for

charging the internal batt ery.

Ratings:

5V, 400mA

2W (M ax)

The TPT unit board pow ers w it h int ernal bat tery.

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4.3 Powering ON the Receiver TPT

M ake sure that t he unit TPT is fully charged.

Press the rectangle big but t on momentarily for 1-second to turn the unit.

Press the rectangle big but t on momentarily for 1-second to t urn ON the unit.

Blinking LEDs (on t he sides of rectangular Butt on) indicates that Unit is Powered-ON and active.

4.4 Powering OFF the Receiver TPT

The being in Power-ON state (blinking LEDs), press the big rectangular button for roughly 3-seconds unt il the LEDs are

OFF (Unit Pow ered OFF).

It is to be noted that if t he big rectangular button is pressed for greater than 7-seconds, the unit resets and Pow ers-ON

automatically. This mode (pressing big rectangular button for more t han 7-seconds) can be used to hard reset the TPT if

the unit is unresponsive (or) struck.

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4.5 Charging Receiver TPT:

The TPT

Charging TPT Unit :

oSt ep-1: Connect USB Port of TPT Unit’s USB t o a Host Computer t hru a Type-C USB cable with a

magnetic ring.

oSt ep-2: Press Rectangular Button on front for a 1-sec to Power-ON the unit (LEDs Blink cont inuously).

oSt ep-3: Leave it for 30-minut es t o charge fully.

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