PUBLIC Exhibit A

0961-EX-CN-2018 Text Documents

Swarm Technologies, Inc.

2018-12-01ELS_220522

                                                                          Swarm Technologies Inc.
                                                                        Exhibit A to FCC Form 442
                                                                    FCC File No. 0961-EX-CN-2018



                               Exhibit A - Narrative Statement

Introduction

        Swarm Technologies Inc (“Swarm”) is a California-based corporation proposing a
constellation of two-way communications satellites to serve as a cost-effective, low-data rate
Internet of Things (IoT) network connectivity solution for remote and mobile sensors. Swarm
seeks Part 5 experimental authority to test and develop hardware for the ground segment of its
proposed satellite system.

        Each ground station and ground device in the proposed experiment will use VHF band
frequencies for communications. The VHF frequencies proposed in this application, more
specifically in the 148-150.05 MHz bands, are allocated on a primary basis for ground-to-space
Mobile Satellite Service (MSS) communications for non-Federal, non-voice, non-geostationary
orbit (NGSO) systems. These bands enable ground-to-space communications



Experimental Program Description

        Swarm requests experimental authority to test and demonstrate the capabilities of its
ground hardware for communications between spacecraft and terrestrial-based remote sensors
and data collectors. Specifically, Swarm requests authority to communicate with previously
authorized satellites identified below from experimental testing sites in the United States.1

         Swarm was previously granted Special Temporary Authorization under STA
1140-EX-ST-2018 to communicate with its four ¼U satellites currently on orbit for the sole
purpose of downlinking telemetry data. A subsequent STA, 0976-EX-ST-2018, provided Swarm
with launch authority and authorized transmissions with Swarm’s three 1U satellites to be
launched on the upcoming SpaceX SSO-A mission, currently scheduled for November 2018.
Communications with the Swarm satellites at the new ground station sites proposed in this
application will be conducted within the conditions set forth in the previous STA grants (​e.g.
communications between the satellites authorized under 0976-EX-ST-2018 with additional
ground sites will remain exclusively for the purpose of downlinking telemetry data). Experimental
authorization to communicate with these satellites (seven in total) is requested starting January
10, 2018 or as soon as practical.

      The Swarm system architecture is comprised of the following space and ground
segments:

      ●   Satellites​: Data relay satellites that send messages to and receive messages from
          Swarm earth stations.

      ●   Ground stations​: Internet-connected devices that relay data downlinked from the Swarm

1
    A complete list of proposed experimental sites is provided in Table 2.
                                                                                               1


                                                                        Swarm Technologies Inc.
                                                                      Exhibit A to FCC Form 442
                                                                  FCC File No. 0961-EX-CN-2018

        satellites to the internet.



    ●   Ground devices​: Mobile transceivers that send messages to and receive messages from
        Swarm satellites.



          Swarm’s nominal plan is to conduct testing of ground stations and ground devices at a
series of experimental test sites (see Table 2 for a full list of proposed sites). Swarm will ensure
that all transmissions occur within the indicated 15 km radius encompassing each test site.

The experimental program is designed to meet the following objectives and validations:




General Description of the Overall System and Operations

         As described above, the Swarm satellite network consists of data relay satellites, ground
stations, and ground devices.




                                                                                     All uplink and
downlink transmissions will be one-way.

        The satellites and ground stations will transmit only upon command and persist only
during active data transmissions. Any transmission can be immediately terminated by ground

                                                                                                  2


                                                                        Swarm Technologies Inc.
                                                                      Exhibit A to FCC Form 442
                                                                  FCC File No. 0961-EX-CN-2018

command if interference is detected or reported.




        Public Interest Consideration:

      The commission's grant of this application will serve the public interest by allowing
Swarm to demonstrate the above described




Non-Interference Criterion

        Pursuant to 47 C.F.R. § 5.84 and 5.85, it is understood that a grant of authority for this
experimental program will be on a non-exclusive and non-interference basis to both Federal and
non-Federal authorized users of the VHF spectrum proposed in this application. Operations under
the experimental program will be conducted only at the listed experimental test sites within a 15
km radius of each location.

        Uplink transmissions to the Swarm satellites from the ground stations and ground devices
located at Swarm’s experimental test sites will occur with a maximum power level of 1.5 W. The
out of band emissions are minimized by digital modulation techniques and filtering with at least 20
dB spectral rolloff at 120% of signal bandwidth in any 4 kHz band, 40 dB at 200% bandwidth, 55
dB at 300% bandwidth, and more than 60 dB beyond 4 times the bandwidth. Center frequencies
of 148.315, 148.345, 148.375, and 148.405 MHz are chosen to remain within the band allocated
to NGSO MSS, minimizing potential for interference into adjacent services, including allowance
for Doppler shift and frequency tolerance.

      Exhibit B attached to this application describes fully the electromagnetic compatibility of
the Swarm system with other users and services in the VHF frequencies proposed in this


                                                                                                 3


                                                                        Swarm Technologies Inc.
                                                                      Exhibit A to FCC Form 442
                                                                  FCC File No. 0961-EX-CN-2018

application, more specifically in the 148-150.05 MHz band.2

Radio System Technical Characteristics

         The link parameters for ground-to-space and space-to-ground communications are
further characterized in the link budget provided in Table 1.

Table 1: ​Space and ground link budget.3
                                     ground to satellite            satellite to ground
Item                              Nominal       Worst-Case       Nominal       Worst-Case    Units
Satellite Orbital Altitude           500            500            500             500       km
Earth Radius                        6371            6371           6371            6371      km
Frequency                           0.149          0.149           0.138          0.138      GHz
Elevation Angle to Satellite         50               0             50               0       deg
Satellite Angle from Nadir          36.58          68.01           36.58          68.01      deg
Theta Angle                         3.42           21.99           3.42           21.99      deg
Transmitter Power                   1.50            1.50           0.10            0.10      Watts
Transmitter Power                   1.76            1.76          -10.00          -10.00     dBW
Transmitter Line Loss               -1.00           -1.00          -1.00           -1.00     dBW
Peak Transmit Antenna Gain          11.00          11.00           2.00            2.00      dBi
Transmit Antenna Pattern Loss       -3.84           0.00           -1.18           -2.97     dB
Transmit Total Gain                 6.16           10.00           -0.18           -1.97     dB
Eq. Isotropic Radiated Power        7.92           11.76          -10.18          -11.97     dBW
Propagation Path Length              637            2573           637             2573      km
Path Loss                          -131.99         -144.12        -131.33         -143.46    dB
Polarization Loss                   -3.00           -3.00          -3.00           -3.00     dB
Power @ Receiver Antenna           -127.07         -135.36        -144.51         -158.43    dBW
Peak Receive Antenna Gain           2.00            2.00           11.00          11.00      dBi
Receive Antenna Line Loss           -1.00           -1.00          -1.00           -1.00     dB


2
  On November 29, 2018, Swarm contacted Orbcomm, the only mobile satellite service provider
licensed to conduct commercial operations in the United States in the 148-150.05 MHz bands, to
initiate coordination to prevent interference with Orbcomm’s system. Coordination between
Swarm and Orbcomm remains ongoing. Swarm appreciates that operations in the proposed VHF
frequencies must occur on a sufferance basis, and Swarm cannot create interference and must
accept interference from other authorized users. Should the Commission act prior to the
conclusion of discussions with Orbcomm, Swarm will accept a condition on its grant of
experimental authority that requires successful coordination prior to the initiation of
communications.

3
   Shown for the downlink power levels authorized under STA 1140-EX-ST-2018 for
communications with Swarm’s four ¼U satellites currently on orbit. Downlink power levels for
other satellites will be consistent with the values granted in their respective STAs or experimental
licenses.
                                                                                                     4


                                                                      Swarm Technologies Inc.
                                                                    Exhibit A to FCC Form 442
                                                                FCC File No. 0961-EX-CN-2018


Receive Antenna Pattern Loss       -1.18          -2.97          -4.49          -0.66     dB
Rx Gain with pointing error        -0.18          -1.97          5.51           9.34      dB
Rx Power                          -127.25        -137.33        -139.01        -149.08    dBW
Necessary Bandwidth                20.8           20.8           20.8           20.8      kHz
Assigned Bandwidth                 30.0           30.0           30.0           30.0      kHz
Target Rx Level                   -162.80        -162.80        -162.80        -162.80    dBW
Implementation Margin                6              6              6              6       dB
Remaining Margin                   29.54          19.47          17.79          7.72      dB


        For the ground stations and ground devices proposed in this application, two different
types of antennas will be evaluated: 1) a vertically polarized half-wave monopole antenna with a
maximum gain of 2 dBi, and 2) a 5-element Yagi antenna with a maximum gain of 11 dBi.4
Figures 1 and 2 show the ground station antenna patterns and characteristics, applicable for both
transmit and receive.




Figure 1: ​Ground station or ground device TX and RX antenna pattern (end-fed vertical
monopole antenna).




4
 The antenna gain value provided in the accompanying FCC Form 442 reflects the highest-gain
antenna that will be used with the proposed ground stations and ground devices.
                                                                                                5


                                                                        Swarm Technologies Inc.
                                                                      Exhibit A to FCC Form 442
                                                                  FCC File No. 0961-EX-CN-2018




Figure 2: ​Ground station or ground device TX and RX antenna pattern (Yagi antenna).

        All satellite-to-ground communications initiate upon command and self-terminate at the
completion of the data transmission. If any deviation from the authorized technical requirements
of the transmission is detected, the ground system will mute further transmissions until the
deviation is understood and can be corrected.

         Swarm requests a waiver of rule 47 C.F.R. § 5.115 related to station identification. More
specifically, Swarm requests a waiver of the requirement for periodic station identification in the
interest of minimizing transmission durations and activity. Grant of such waiver serves the public
interest, as compliance with the station identification requirement unnecessarily adds additional
data and modulation changes during transmissions. Grant of such waiver does not adversely
affect the spectrum rights of any third party and is consistent with Commission’s longstanding
commitment to spectral efficiency.

Previously Authorized or Pending Ground Station Locations

         Ground Stations 1 and 2 were previously authorized under 1140-EX-ST-2018 (for
communications with Swarm’s four ¼U satellites currently on orbit for the sole purpose of
collecting orbital and tracking data) and under 0976-EX-ST-2018 (for communications with
Swarm’s three 1U satellites to be launched on the upcoming SpaceX SSO-A mission).

        Ground Station 1
        845 Madonna Way
        Los Altos, CA 94024
        NL 37-21-53; WL 122-06-39
        Elevation: 132 m
        Antenna height: 3 meters above ground level
        Antenna type: VHF vertical dipole

                                                                                                 6


                                                                       Swarm Technologies Inc.
                                                                     Exhibit A to FCC Form 442
                                                                 FCC File No. 0961-EX-CN-2018



        Ground Station 2
        4015 Biltmore Cove Way
        Buford, GA 30519
        NL 34-05-05; WL 83-56-51
        Elevation: 366 m
        Antenna height: 3 meters above ground level
        Antenna type: VHF vertical dipole

Experimental Testing Sites for which Authorization is Requested

        ​General Parameters (applicable for all sites)
         ​Antenna height: 3 meters above ground level
          Antenna type: VHF vertical monopole or Yagi antenna
          Radius of operation: Testing will be conducted within a 15 km radius of the latitude and
          longitude provided for each location

        Number of Transmitting Devices
        At Sites 1 and 2 (located in Palo Alto, California and Draper, Utah), a maximum of one
        ground station and ten ground devices will transmit simultaneously. At all other proposed
        test sites, only a single ground station or ground device will transmit at any given time.

Table 2: ​Requested experimental testing sites.
Site
Number     City or Location     State              Country                 Latitude    Longitude
1          Palo Alto            California         USA                   37 27 18 N    122 6 39 W
2          Draper               Utah               USA                   40 28 53 N   111 49 23 W
3          Flowery Branch       Georgia            USA                   34 11 32 N    83 56 28 W
4          Austin               Texas              USA                   30 12 32 N    97 40 38 W
5          Cumming              Georgia            USA                    34 5 31 N    84 11 13 W
6          Waimea               Hawaii             USA                    20 1 54 N   155 41 44 W
7          Dededo               Guam               USA                    13 31 3 N   144 50 49 E
8          Agat                 Guam               USA                    13 21 0 N   144 41 52 E
9          St Croix             St Croix           USA                    17 44 1 N    64 45 34 W
10         Oakland              California         USA                   37 48 11 N   122 16 22 W
11         Napa                 California         USA                   38 20 20 N   122 21 41 W
12         Richmond             California         USA                   37 55 45 N   122 25 52 W
13         Fairbanks            Alaska             USA                   64 53 57 N   147 43 18 W
14         Tampa                Florida            USA                   27 52 38 N    82 29 45 W
15         Boulder              Colorado           USA                    40 0 54 N   105 16 14 W


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                                                                 Swarm Technologies Inc.
                                                               Exhibit A to FCC Form 442
                                                           FCC File No. 0961-EX-CN-2018


16   Vallejo              California       USA                    38 6 19 N   122 12 59 W
17   Suffolk              Virginia         USA                   36 43 34 N    76 35 57 W
18   Philadelphia         Pennsylvania     USA                   39 57 40 N     75 11 9 W
19   Fort Bliss           Texas            USA                   31 49 51 N   106 23 42 W
20   Jacumba Hot Springs California        USA                   32 37 31 N    116 8 39 W
                                           USA
21   St. Thomas           St. Thomas       (US Virgin Islands)   18 20 52 N    64 55 55 W
22   Woburn               Massachusetts    USA                   42 29 44 N     71 7 39 W
23   Franconia            Virginia         USA                   38 46 18 N     77 8 17 W
24   Cape Canaveral       Florida          USA                   28 32 33 N     80 38 9 W
25   Albuquerque          New Mexico       USA                    35 3 17 N   106 35 37 W
26   Mojave               California       USA                   34 58 27 N    117 58 4 W
27   Judy Gap             West Virginia    USA                   38 42 28 N    79 27 39 W
28   Fredericksburg       Virginia         USA                   38 18 12 N    77 26 12 W
29   Matinicus Island     Maine            USA                   43 51 13 N     68 54 2 W
     Tall Trees Grove
30   Trailhead            California       USA                   41 12 29 N   123 59 35 W
31   Arlington            Virginia         USA                   38 53 34 N      77 5 7 W
32   Chula Vista          California       USA                   32 34 41 N   116 51 13 W
33   Monhegan Island      Maine            USA                   43 45 34 N    69 18 59 W
34   IVO Wells            Nevada           USA                     41 4 2 N    115 1 30 W
35   Dog Island           Florida          USA                   29 48 34 N    84 35 51 W
36   St. Vincent Island   Florida          USA                   29 40 26 N     85 9 43 W
     Sand Key, Dry
37   Tortugas             Florida          USA                   24 37 41 N    82 52 19 W
38   Twin Lakes           Alaska           USA                   60 37 59 N   153 54 34 W
39   Terlingua            Texas            USA                   29 19 20 N    103 37 2 W
40   New York City        New York         USA                   40 42 10 N     74 0 36 W
41   Rio Grande           Puerto Rico      USA                   18 17 37 N     65 47 4 W
42   Sandia Crest         New Mexico       USA                   35 12 38 N   106 26 58 W
43   Idaho Falls          Idaho            USA                   43 30 41 N    112 2 32 W
44   Burbank              California       USA                   34 11 51 N   118 21 25 W
45   Fayetteville         North Carolina   USA                    35 5 50 N    78 58 19 W
46   Colorado Springs     Colorado         USA                   38 47 16 N    104 51 0 W

47   Harrisburg           Pennsylvania     USA                   40 16 23 N    76 53 10 W


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                                                 Swarm Technologies Inc.
                                               Exhibit A to FCC Form 442
                                           FCC File No. 0961-EX-CN-2018


48   Pittsburgh     Pennsylvania     USA         40 26 26 N    79 59 44 W
49   Everett        Colorado         USA          39 4 15 N   106 28 56 W
50   Asheboro       North Carolina   USA         35 42 29 N    79 48 59 W
51   Palm Springs   California       USA         33 47 43 N   116 29 59 W
52   Vacaville      California       USA         38 25 34 N   121 55 29 W
53   Saxon          California       USA         38 26 47 N   121 37 55 W
54   Fairfield      California       USA         38 12 32 N    122 2 41 W
55   Olcott         California       USA         38 14 30 N   121 48 19 W
56   Hood           California       USA         38 20 53 N    121 32 1 W
57   Isleton        California       USA          38 8 57 N   121 32 46 W
58   Herald         California       USA         38 16 38 N   121 15 37 W
59   Stockton       California       USA          38 3 29 N   121 22 30 W
60   Antioch        California       USA          38 3 33 N    121 47 0 W

61   San Jose       California       USA         37 18 38 N   121 53 13 W
62   Groveland      California       USA         37 50 36 N   120 11 20 W
63   Lake Tahoe     California       USA         38 59 42 N    120 5 44 W




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Document Created: 2018-12-01 12:45:48
Document Modified: 2018-12-01 12:45:48

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