MIJCM300V2CM-300 (V2) Air Traffic Control VHF Digital Transmitter (VDT)

Exhibit 2 Page 1 of 1 FCC ID: MIJCM300V2 06/13/13 Exhibit 2 – Attestation Statement General Dynamics C4 Systems CM-300 (V2) VHF Digital Transmitter (VDT) FCC ID: MIJCM300V2 Model No. CM-300 (V2) VDT 2.0 Attestation Statement The technical data supplied with this application, having been taken under my supervision, is hereby duly certified. This is a statement of my qualifications: BSEE 1982, Northern Arizona University 29 years experience in EMC Engineering design and test Gil O. Estrella /s/ Name: Gil Estrella Date: 06/13/2013 Position: EMC Engineer

June 10, 2013 Page 2

Exhibit 3 Page 1 of 2 FCC ID: MIJCM300V2 06/13/13 Exhibit 3 – External Photos General Dynamics C4 Systems CM-300 (V2) VHF Digital Transmitter (VDT) FCC ID: MIJCM300V2 Model No. CM-300 (V2) VDT 3.0 External Photos Figure 3.0-1 CM-300 (V2) External View (Front) Exhibit 3 Page 2 of 2 FCC ID: MIJCM300V2 06/13/13 Figure 3.0-2 CM-300 (V2) External View (Rear)

Exhibit 1 Page 1 of 2 FCC ID: MIJCM300V2 06/13/13 Exhibit 1 – ID Label Information General Dynamics C4 Systems CM-300 (V2) VHF Digital Transmitter (VDT) FCC ID: MIJCM300V2 Model No. CM-300 (V2) VDT 1.0 Identification (Nameplate) Information Figure 1.0-1 Detailed view of CM-300 (V2) FCC label Exhibit 1 Page 2 of 2 FCC ID: MIJCM300V2 06/13/13 Figure 1.0-2 Location of CM-300 (V2) FCC label Anticipated location of FCC ID Label

Exhibit 9 Page 1 of 9 FCC ID: MIJCM300V2 06/13/13 Exhibit 9 – Internal Photographs General Dynamics C4 Systems CM-300 (V2) VHF Digital Transmitter (VDT) FCC ID: MIJCM300V2 Model No. CM-300 (V2) VDT 9.0 Photographs Figure 9.0-1 Complete PCB Layout Exhibit 9 Page 2 of 9 FCC ID: MIJCM300V2 06/13/13 Figure 9.0-2 Control CCA Top Figure 9.0-3 Control CCA Back Exhibit 9 Page 3 of 9 FCC ID: MIJCM300V2 06/13/13 Figure 9.0-4 A L P F C C A To p Figure 9.0-5 ALPF CCA Back Exhibit 9 Page 4 of 9 FCC ID: MIJCM300V2 06/13/13 Figure 9.0-6 ADAP CCA Top Figure 9.0-7 ADAP CCA Back Exhibit 9 Page 5 of 9 FCC ID: MIJCM300V2 06/13/13 Figure 9.0-8 MIDS CCA Top with Shield Figure 9.0-9 MIDS CCA Top without Shield Exhibit 9 Page 6 of 9 FCC ID: MIJCM300V2 06/13/13 Figure 9.0-10 MIDS CCA Back with Shield Figure 9.0-11 MIDS CCA Back without Shield Exhibit 9 Page 7 of 9 FCC ID: MIJCM300V2 06/13/13 Figure 9.0-12 PAVE CCA Back Figure 9.0-13 RALI CCA Top Exhibit 9 Page 8 of 9 FCC ID: MIJCM300V2 06/13/13 Figure 9.0-14 RALI CCA Back Figure 9.0-15 SVHF CCA Top Exhibit 9 Page 9 of 9 FCC ID: MIJCM300V2 06/13/13 Figure 9.0-16 SVHF CCA Back with Shield Figure 9.0-17 SVHF CCA Back without Shield

Exhibit 12 Page 1 of 2 FCC ID: MIJCM300V2 06/13/13 Exhibit 12 – Operational Description General Dynamics C4 Systems CM-300 (V2) VHF Digital Transmitter (VDT) FCC ID: MIJCM300V2 Model No. CM-300 (V2) VDT 12.0 Operational Description Transmitter Operational Description The General Dynamics, CM-300/350 (V2) Series VHF Digital Transmitters provide line-of-sight Double Side Band (DSB) AM transmission of voice in the VHF frequency band used in air traffic control operations. The transmitters can be used with DSB-AM receivers operating in the VHF frequency range of 112.000 to 150.000 MHz in 25 kHz or 8.33 kHz channel spacing. The transmitters are designed for deployment in air traffic control, fixed-station environments, and provide air -to - ground voice communications. They support legacy analog audio and also Voice over Internet Protocol (VoIP) digital audio as defined in ED-137A, Part 1. The VHF transmitters have the same physical dimensions and are each enclosed in a rack mount housing. The front panel includes the operating controls, indicator LEDs, Maintenance Data Terminal (MDT) interface, and local audio interfaces. The rear panel includes the power inputs, the master AC power switch, RF connections, and remote audio (analog and VoIP) and control interfaces. The operating functions are controlled by an internal processor. The operator can select the operating frequency, make adjustments, and monitor various transmitter functions using the front panel controls or an MDT device. Whichever the source, the processor monitors the inputs, changes the configuration of the transmitter accordingly, and displays configuration information on the front panel and MDT. The main differences between the transmitters are as follows: • The CM-300 (V2) VDT Low Power Transmitter has an output power level adjustable from below 2 watts to at least 12 watts and operates in the VHF frequency band. • The CM-350 (V2) VDT High Power Transmitter has an output power level adjustable from below 12 watts to at least 35 watts and operates in the VHF frequency band. Exhibit 12 Page 2 of 2 FCC ID: MIJCM300V2 06/13/13 Figure 12-1 CM-300/350 (V2) VHF Transmitters

Exhibit 6 Page 1 of 69 FCC ID: MIJCM300V2 06/20/13 Exhibit 6 – Test Report General Dynamics C4 Systems CM-300 (V2) VHF Digital Transmitter (VDT) FCC ID: MIJCM300V2 Model No. CM-300 (V2) VDT Equipment Applicant: General Dynamics C4 Systems 8220 E. Roosevelt St. Scottsdale, Arizona 85257 Tests Conducted By: General Dynamics C4 Systems EMC Test Facility 8201 E. McDowell Rd. Scottsdale, Arizona 85257 Test Summary: Complies with FCC Part 87, Aviation Services The General Dynamics EMC Laboratory is accredited through the NVLAP Lab Code 100405-0 This document shall not be reproduced, except in full, without the written approval of the laboratory. This document shall no be used by the client to claim product endorsement by NVLAP or any agency of the U.S. Government. APPLICATION REVISION HISTORY NEXT ASSY USED ON REV DESCRIPTION DATE APPROVED CM-300 (V2) - INTIAL RELEASE PA 32491 13-06-18 CCB ©2013 GENERAL DYNAMICS ALL SHEETS ARE THE SAME REVISION LEVEL CONTR GENERAL DYNAMICS ISS CM-300V2-00686.RR 13-06-18 SCOTTSDALE, ARIZONA 85257 APPROVALS TITLE DWN CM-300 (V2) VDT PL P. Brownlee 13-06-17 FCC Certification Report QA J. Hasselberg 13-06-18 MATL N/A MFG N/A SIZE CAGE CODE DWG NO ENG G. Schmidt 13-06-17 A 1VPW8 12-P57406R SCALE: NONE SHEET 1 OF 68 Document Control #:00-2831835 Revision -- Std_Fmt_1VPW8AV.doc_050712 EXPORT CONTROL WARNING – Do not disclose or provide this document or item (including its contents) to non-U.S. Citizens or non- U.S. Permanent Residents, or transmit this document or item (including its contents) outside the United States without the written permission of General Dynamics and required U.S. Government export approvals. SIZE CAGE CODE REV 12-P57406R A 1VPW 8 - SHEET 2 Table of Contents 1.0 GENERAL INFORMATION ...................................................................................... 7 1.1 APPLICABLE DOCUMENTS ................................................................................................ 7 1.2 TEST REQUIREMENTS ....................................................................................................... 7 2.0 TEST SAMPLE ............................................................................................................. 8 2.1 DESCRIPTION ................................................................................................................... 8 2.2 EQUIPMENT UNDER TEST (EUT) ..................................................................................... 8 2.3 POWER REQUIREMENTS ................................................................................................... 8 2.4 ATMOSPHERIC CONDITIONS ............................................................................................. 9 2.5 TEST EQUIPMENT ............................................................................................................. 9 2.6 SETUP REQUIREMENTS ................................................................................................... 11 2.6.1 General ...................................................................................................................... 11 2.6.2 Modes of Operation .................................................................................................. 11 3.0 TEST FACILITY ........................................................................................................ 14 3.1 FACILITY DESCRIPTION .................................................................................................. 14 3.2 QUALITY SYSTEM .......................................................................................................... 14 4.0 MEASUREMENT RESULTS ................................................................................... 15 4.1 OCCUPIED BANDWIDTH ................................................................................................. 15 4.2 SPECTRAL MASK............................................................................................................ 17 4.3 CONDUCTED SPURIOUS EMISSIONS ................................................................................ 23 4.4 RADIATED SPURIOUS EMISSIONS ................................................................................... 39 4.5 MODULATION CHARACTERISTICS .................................................................................. 53 4.6 FREQUENCY STABILITY ................................................................................................. 57 4.7 RF OUTPUT POWER AND FINAL AMPLIFIER VOLTAGE/CURRENT .................................. 68 5.0 CONCLUSIONS ......................................................................................................... 68 SIZE CAGE CODE REV 12-P57406R A 1VPW 8 - SHEET 3 Table of Figures FIGURE 2.6-1 CM-300 (V2) VDT TO STE INTERCONNECT DIAGRAM ..................................... 13 FIGURE 4.1-1 CM-300 (V2) VDT OCCUPIED BANDWIDTH, 25 KHZ CHANNEL ....................... 16 FIGURE 4.1-2 CM-300 (V2) VDT OCCUPIED BANDWIDTH, 8.33 KHZ CHANNEL .................... 17 FIGURE 4.2-1 SPECTRAL MASK, 25 KHZ CHANNEL @ 119.000 MHZ ...................................... 18 FIGURE 4.2-2 SPECTRAL MASK, 25 KHZ CHANNEL @ 131.350 MHZ ...................................... 19 FIGURE 4.2-3 SPECTRAL MASK, 25 KHZ CHANNEL @ 135.500 MHZ ...................................... 20 FIGURE 4.2-4 SPECTRAL MASK, 8.33 KHZ CHANNEL @ 119.005 MHZ ................................... 21 FIGURE 4.2-5 SPECTRAL MASK, 8.33 KHZ CHANNEL @ 131.355 MHZ ................................... 22 FIGURE 4.2-6 SPECTRAL MASK, 8.33 KHZ CHANNEL @ 135.505 MHZ ................................... 23 FIGURE 4.3-1 CONDUCTED SPURIOUS EMISSIONS, 30MHZ – 100MHZ (FO=119MHZ) ........... 24 FIGURE 4.3-2 CONDUCTED SPURIOUS EMISSIONS, 100MHZ – 200MHZ (FO=119MHZ) ......... 25 FIGURE 4.3-3 CONDUCTED SPURIOUS EMISSIONS, 200MHZ – 400MHZ (FO=119MHZ) ......... 26 FIGURE 4.3-4 CONDUCTED SPURIOUS EMISSIONS, 400MHZ – 1GHZ (FO=119MHZ) .............. 27 FIGURE 4.3-5 CONDUCTED SPURIOUS EMIS…

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Exhibit 7 Page 1 of 6 FCC ID: MIJCM300V2 06/13/13 Exhibit 7 – Test Setup Photographs General Dynamics C4 Systems CM-300 (V2) VHF Digital Transmitter (VDT) FCC ID: MIJCM300V2 Model No. CM-300 (V2) VDT 7.0 Test Setup Photographs Figure 7.0-1 Conducted Emissions Test Setup Exhibit 7 Page 2 of 6 FCC ID: MIJCM300V2 06/13/13 Figure 7.0-2 Radiated Emissions Test Setup (Pre-Scans/Anechoic Chamber) Exhibit 7 Page 3 of 6 FCC ID: MIJCM300V2 06/13/13 Figure 7.0-3 Radiated Emissions Test Setup (Pre-Scans/Anechoic Chamber) Exhibit 7 Page 4 of 6 FCC ID: MIJCM300V2 06/13/13 Figure 7.0-4 Radiated Emissions Test Setup (OATS) Exhibit 7 Page 5 of 6 FCC ID: MIJCM300V2 06/13/13 Figure 7.0-5 Radiated Emissions Test Setup (OATS) Exhibit 7 Page 6 of 6 FCC ID: MIJCM300V2 06/13/13 Figure 7.0-6 Front-End Conducted Emissions Test Setup