Exhibit 2

1771-EX-ST-2018 Text Documents

Alliant Techsystems Operations LLC

2018-10-17ELS_218237

EXHIBIT 2


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    Haigh-Farr’s family of rugged Blade antennas are
    available in frequencies ranging from UHF to
    upper C-band, and may be provided in either
    straight or rounded blade configurations. These
    antennas have demonstrated proven reliability in
    over 30 years of high-performance airborne
    applications. Blade antennas are also used
    extensively in ground-based vehicles such as race
    cars, trucks, tanks, and motorcycles, to name a
    few.

    These Blade antennas exhibit quasi-uniform null-
    free hemispherical patterns.



        FEATURES :                                                APPLICATIONS :
              •    Hemispherical Coverage                           •   Data Links, Telemetry, Transponder
                   (see patterns on next page)
                                                                    •   Aircraft
              •    Frequencies from UHF to C‐Band
                                                                    •   UAVs
              •    Small, Compact Footprint
                                                                    •   Helicopters
              •    Aerodynamic Design
                                                                    •   Tactical Missiles
              •    Common Footprint for All Models
                                                                    •   Ships
              •    Built to Withstand Extreme Shock & Vibration
                   Environments                                     •   Ground‐Based Vehicles

                                                                    •   Single or Array Implementations with Matching
                                                                        Power Dividers and Cables


     DESIGN CAPABILITY
     Haigh-Farr has a more than 40 year history of designing and producing exceptionally rugged, high-
     performance antennas. If you don’t find an antenna meeting your requirements in our standard list of
     products, Haigh-Farr has the experience and modeling capability to customize a solution. Adaptations of
     existing designs can be done with very short lead times. Contact Haigh-Farr for a review of your antenna
     requirements.

                                                                                    Haigh-Farr, Inc. 43 Harvey Road, Bedford NH 03110
                                                                                                  Tel: 603-644-6170 Fax: 603-644-6190
General Blade Rev B 05/10 Approved for release DF 5/10                      E-mail: sales@haigh-farr.com Web Site: www.haigh-farr.com


    MECHANICAL DIMENSIONS                                                                          HAIGH-FARR

                                                         STRAIGHT BLADE




                                                         ROUNDED BLADE




                                                                                  Haigh-Farr, Inc. 43 Harvey Road, Bedford NH 03110
                                                                                                Tel: 603-644-6170 Fax: 603-644-6190
General Blade Rev B 05/10 Approved for release DF 5/10                    E-mail: sales@haigh-farr.com Web Site: www.haigh-farr.com


                                                                                                                                           HAIGH-FARR
   BLADE ANTENNAS
         Round Blade          Straight Blade       Frequency Range        VSWR                  5KW¹            PEAK²             Height          Weight (SMA)
            P/N                    P/N                   GHz            MAX/TYPICAL           ALTITUDE         POWER           Inches [mm]         OZ [grams]
              6107                 6007                  1.060 ± .030    2.0:1/1.50:1               116         160 W            2.30 [58.4]         1.0 [28.3]
              6108                 6008              0.9165 ± .025       2.0:1/1.50:1               116         160 W            2.30 [58.4]         1.0 [28.3]
              6109                 6009                  1.35 – 1.54     2.0:1/1.50:1               116         160 W            1.75 [44.3]          0.9 [26]
              6110                 6010                  1.43 – 1.54     1.5:1/1.25:1               116         160 W            1.54 [39.1]          0.8 [23]
             6110-2               6010-2             1.425 – 1.525       1.5:1/1.25:1               116         160 W            1.54 [39.1]          0.8 [23]
             6110-3               6010-3                 1.45 – 1.65     2.0:1/1.50:1               116         160 W            1.54 [39.1]          0.8 [23]
             6110-4               6010-4                 1.50 – 1.80     2.0:1/1.50:1               116         160 W            1.54 [39.1]          0.8 [23]
              6115                 6015                  1.60 – 1.70     1.5:1/1.25:1               116         160 W            1.54 [39.1]          0.8 [23]
              6120                 6020                  1.71 – 1.85     1.5:1/1.25:1               114         240 W            1.45 [36.8]          0.8 [23]
              6125                 6025                  2.00 – 2.10     1.5:1/1.25:1               110         350 W            1.19 [30.2]          0.7 [20]
             6125-1               6025-1                 2.00 – 2.30     2.0:1/1.50:1               110         350 W            1.19 [30.2]          0.7 [20]
              6130                 6030                  2.20 – 2.30     1.5:1/1.25:1               110         350 W            1.19 [30.2]          0.7 [20]
             6130-1               6030-1                 2.30 – 2.40     1.5:1/1.25:1               110         350 W            1.19 [30.2]          0.7 [20]
             6130-2               6030-2                 2.40 – 2.50     1.5:1/1.25:1               110         350 W            1.19 [30.2]          0.7 [20]
             6130-3               6030-3                 2.20 – 2.40     1.5:1/1.25:1               110         350 W            1.19 [30.2]          0.7 [20]
             6130-4               6030-4                 2.30 – 2.50     1.5:1/1.25:1               110         350 W            1.19 [30.2]          0.7 [20]
             6130-6               6030-6                 2.20 – 2.50     1.75:1/1.50:1              110         350 W            1.19 [30.2]          0.7 [20]
             6135-1               6035-1                 3.10 – 3.30     1.5:1/1.25:1               106         350 W            1.19 [30.2]          0.7 [20]
             6135-2               6035-2                 3.45 – 3.55     1.5:1/1.25:1               106         350 W            1.19 [30.2]          0.7 [20]
             6135-3               6035-3                 3.65 – 3.85     1.5:1/1.25:1               106         350 W            1.19 [30.2]          0.7 [20]
              6140                 6040                  4.50 – 5.00     1.5:1/1.25:1               104         1.5 kW           0.90 [22.9]          0.6 [17]
              6150                 6050                  5.40 – 5.90     1.5:1/1.25:1               102         2.2 kW           0.75 [19.1]          0.6 [17]
             6150-1               6050-1                 5.25 to 5.85    1.5:1/1.25:1               102         2.2 kW           0.75 [19.1]          0.6 [17]
             6150-2               6050-2                 6.40 – 6.60     1.5:1/1.25:1               102         2.2 kW           0.75 [19.1]          0.6 [17]



               •     Thermal environments: ‐50°C to 150°C; 300°C Transient
               •     Polarization: Linear, predominately vertical
               •     Connector: SMA (50 Ω) Standard; TNC (50 Ω) Optional
               •     Required Mounting Screws: 82⁰ Flathead #4 Standard; 100⁰ Flathead #4 or M3 optional
               •     UHF models are available in different configurations
               •     Mechanical outline drawings are available upon request


         ¹ The 5kW altitude (k ft) is the approximate altitude at which the antenna will experience external corona with 5kW peak power.

         ² Peak power indicates the maximum power that may be radiated without experiencing external corona at any altitude.    These antennas routinely handle average
         power in the 25‐30W CW range. Sufficient airflow is required at the higher power levels.




                                                                                                                         Haigh-Farr, Inc. 43 Harvey Road, Bedford NH 03110
                                                                                                                                       Tel: 603-644-6170 Fax: 603-644-6190
General Blade Rev B 05/10 Approved for release DF 5/10                                                           E-mail: sales@haigh-farr.com Web Site: www.haigh-farr.com


                                                                                                                                           HAIGH-FARR
    BLADE ANTENNAS
                                                                                                                                        0 dBi
                                                                                                                                     (5 dB/div)




                                                                           ELEVATION (PITCH)
                                                                               2.250 GHz

                                                                                                                                        0 dBi
                                                                                                                                     (5 dB/div)




                                                                             AZIMUTH (YAW)
                                                                                2.250 GHz

                Note: The patterns shown above were measured with model 6130 on a cylindrical ground plane but are typical of the other Blades used. Fins and
                other protrusions on the vehicle will perturb the radiation pattern. The extent of any perturbations cannot be fully determined until radiation
                patterns are either calculated or measured on a model of the vehicle. Haigh‐Farr offers engineering services, which include the calculation of
                radiation patterns on a specific vehicle.

                                                                                                                        Haigh-Farr, Inc. 43 Harvey Road, Bedford NH 03110
                                                                                                                                      Tel: 603-644-6170 Fax: 603-644-6190
General Blade Rev B 05/10 Approved for release DF 5/10                                                          E-mail: sales@haigh-farr.com Web Site: www.haigh-farr.com



Document Created: 2018-10-10 19:29:04
Document Modified: 2018-10-10 19:29:04

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