FCC Part 87

FCC ID: P8CT3C-16

Test Report

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FCCID_3130047

Test Report Prepared for: Aviation Communication and Surveillance Systems Model: T3CAS Integrated Platform Description: TCAS and Transponder Serial Number: TQE01187 & TQE01100 FCC ID: P8CT3C-16 To FCC Part 87 Date of Issue: September 9, 2016 On the behalf of the applicant: Aviation Communication and Surveillance Systems 19810 N. 7th Ave. Phoenix, AZ 85027 Attention of: Mark D. Smith 623-445-6643 Mark.D.Smith@l-3com.com Prepared by Compliance Testing, LLC 1724 S. Nevada Way Mesa, AZ 85204 (480) 926-3100 phone / (480) 926-3598 fax www.compliancetesting.com Project No: p1680017 Poona Saber Project Test Engineer This report may not be reproduced, except in full, without written permission from Compliance Testing. All results contained herein relate only to the sample tested. p1680017_FCC_Part 87_Rev 1.0 Page 1 of 60

Test Report Revision History Revision Date Revised By Reason for Revision 1.0 August 19, 2016 Poona Saber Original Document p1680017_FCC_Part 87_Rev 1.0 Page 2 of 24

Table of Contents Description Page Standard Test Conditions Engineering Practices.................................................... 5 Test Results Summary ............................................................................................ 7 Carrier Output Power (Conducted) ......................................................................... 8 Conducted Spurious Emissions ............................................................................ 10 Field Strength of Spurious Radiation ...................................................................... 11 Occupied Bandwidth ............................................................................................. 12 Emission Masks (Occupied Bandwidth) ................................................................ 13 Frequency Stability (Temperature Variation) ........................................................ 14 Frequency Stability (Voltage Variation) ................................................................. 15 Test Equipment Utilized ........................................................................................ 24 p1680017_FCC_Part 87_Rev 1.0 Page 3 of 24

ILAC / A2LA Compliance Testing, LLC, has been accredited in accordance with the recognized International Standard ISO/IEC 17025:2005. This accreditation demonstrates technical competence for a defined scope and the operation of a laboratory quality management system (refer joint ISO-ILAC-IAF Communiqué dated January 2009). The tests results contained within this test report all fall within our scope of accreditation, unless noted in the table below Please refer to http://www.compliancetesting.com/labscope.html for current scope of accreditation. Testing Certificate Number: 2152.01 FCC Site Reg. #349717 IC Site Reg. #2044A-2 Non-accredited tests contained in this report: N/A p1680017_FCC_Part 87_Rev 1.0 Page 4 of 24

Standard Test Conditions Engineering Practices Except as noted herein, the following conditions and procedures were observed during the testing: All tests and measurement data shown were performed in accordance with FCC Rules and Regulations, Volume II; Part 2, Sub-part J, Sections 2.947, 2.1033(c), 2.1041, 2.1046, 2.1047, 2.1051, 2.1053, 2.1055, 2.1057 and the following individual Parts: FCC Part 87. Measurement results, unless otherwise noted, are worst-case measurements. Environmental Conditions Temperature Humidity Pressure (ºC) (%) (mbar) 24-25.3 24.1-32.2 956-962 Model: T3CAS Integrated Platform Description: TCAS and Transponder Additional Information: T3CAS system has two RF transmit functions: TCAS (1030 MHz) and Transponder (1090 MHz). Following is declared as type of emission for T3CAS system:  Transponder (DO-181C) 14M0M1D  TCAS (DO-185B) 20M0V1D  Frequency range: 1030 ± 0.01 MHz and 1090 ± 1 MHz  TCAS Function: There are two sub-modes operation for TCAS system called interrogation modes: ATCRBS and Mode S. Both are at 1030 Mhz. ATCRBS is pulse position modulation only and Mode S is pulse position modulation combined with differential phase shift keying (DPSK)  In TCAS mode the transmitter always transmits to only one antenna port at a time.  The maximum duty cycle of the TCAS transmit mode is 0.3%  Transponder Function: There are 2 transponder sub-modes called reply modes: ATCRBS and Mode S. Both are at 1090 MHz and are pulse position modulation only.  In transponder mode all 4 transmit channels are active simultaneously, thereby transmitting into all 4 ports of the directional antenna evert time.  The maximum duty cycle of the Transponder transmit mode is 0.8%  There are two installation configurations possible. Both have directional 4 port antenna as the Top antenna. And the variable is whether the bottom antenna is a directional 4 port or Omi-directional 1 port.  There are 4 identical transmitter lineups/amplifier chains in the T3CAS product. One each for the 0, 90, 180 and 270 channels. At the output of the 4 amplifier chains is a combiner circuit that also is a PIN diode switch to help select the operating mode of the combiner and direct the signal to the correct antenna port(s). There are always Two antennas installed with the T3CAS system.  If the bottom antenna is an omnidirectional antenna, only the 0 port is used instead of all 4 p1680017_FCC_Part 87_Rev 1.0 Page 5 of 24

EUT Support Equipment Qty Description Manufacturer Model No. Part No. 1 T3CAS Valfac ACSS - 9001045-001 1 T3CAS RF Simulator ACSS - 9001057-001 1 T3CAS Front Connector Cable ACSS - 9000655-001 1 Air Transport Mode S Transponder ACSS - 7517800-10007 1 Aircraft Personality Module (APM) ACSS - 9000001-11001 1 EMI Bulkhead Panel ACSS - 9006045-003 1 T3CAS Extension Harness ACSS - 1 ATC Test Set IFR ATC 1403DL California 1 Power Supply 1501iX Instruments 1 DC Power Supply Amtek XHR 100-10 1 Microwave Filter Fairview - SBPF-1000-2000-05-N 2 Attenuator Narda - N4425-20 p1680017_FCC_Part 87_Rev 1.0 Page 6 of 24

Test Results Summary Pass, Specification Test Name Comments Fail, N/A 2.1046, 87.131 Carrier Output Power (Conducted) Pass 2.1051, Unwanted Emissions (Transmitter Pass 87.139(i)(1) Conducted) 2.1053 Field Strength of Spurious Radiation Pass 2.1049, 87.139 Emission Masks and Occupied Bandwidth Pass 87.135 The EUT does not contain an 2.1047 Audio Low Pass Filter (Voice Input) N/A audio input The EUT does not contain an 2.1047 Audio Frequency Response N/A audio input 2.1047 Modulation Limiting N/A 2.1055, Frequency Stability (Temperature Pass 87.133(a) Variation) 2.1055, Frequency Stability (Voltage Variation) Pass 87.133(a) p1680017_FCC_Part 87_Rev 1.0 Page 7 of 24

Carrier Output Power (Conducted) Engineer: Poona Saber Test Date: 8/16/16 Test Procedure The Equipment Under Test (EUT) was connected through attenuator directly to a spectrum analyzer with the RBW > OBW and the VBW set to 3 X RBW which set the RBW greater than the transmit signal ensuring there was no signal suppression while measuring a modulated signal. The peak readings were taken for TCAS and Transponder systems for both ATCRBS(C) and S modes and the result was then compared to the limit. The Average power is the peak power multiplied by duty cycle of 0.298% for TCAS and 0.936% for Transponder system. Section 87.131, for Radio navigation equipment Note 7 specifies “Frequency, emission and maximum power will be determined by appropriate standards during the certification process. TCAS output power is controlled by the requirements of RTCA document DO-185B similarly to the output spectrum. In addition the Transponder output power is controlled by the requirements of RTCA document DO-181E. When operating in TCAS mode into a directional antenna, the maximum output power of the active port of the T3CAS unit is specified to be 55.5 +/- 2 dBm (224 W– 562 W). These transmissions are limited to one output port at a time. When operating in TCAS mode into an omnidirectional bottom antenna, the maximum output power of the bottom 0 degree port of the T3CAS unit is specified to be 56.0 +/- 2 dBm (251 W – 631 W). These transmissions are limited to the bottom 0 degree port only. When operating in Transponder mode into a directional antenna, the maximum output power of each port of the T3CAS unit is specified to be 53.4 +/- 2 dBm (138 W – 347 W). In this mode, the unit is transmitting to all 4 antenna ports simultaneously. When operating in Transponder mode into an omnidirectional antenna, the maximum output power of the bottom 0 degree port of the T3CAS unit is specified to be 57.0 +/- 2 dBm (316 W – 794 W). These transmissions are limited to the bottom 0 degree port only. Test Setup EUT Attenuator Spectrum Analyzer p1680017_FCC_Part 87_Rev 1.0 Page 8 of 24

Output Power for TCAS System Measured Power Peak Measured Power Peak Frequency Antenna Mode (dBm) (W) 1030 MHz TOP 0 C 54.54 284.4 1030 MHz TOP 90 C 54.72 296.4 1030 MHz TOP 180 C 54.54 284.4 1030 MHz TOP 270 C 54.59 287.7 1030 MHz Bottom 0 C 55.37 344.3 1030 MHz TOP 0 S 54.28 267.9 1030 MHz TOP 90 S 54.74 297.85 1030 MHz TOP 180 S 54.75 298.5 1030 MHz TOP 270 S 54.39 274.78 1030 MHz Bottom 0 S 55.01 316.9 Output Power for Transponder System Measured Power Peak Measured Power Peak Frequency Antenna Mode (dBm) (W) 1090 MHz TOP 0 C 52.62 182.8 1090 MHz TOP 90 C 51.83 152.4 1090 MHz TOP 180 C 52.55 179.8 1090 MHz TOP 270 C 52.45 175.79 Sum of 4 top ports 1090 MHz 58.4 690.79 simultaneously 1090 MHz Bottom 0 C 57.42 552.97 1090 MHz TOP 0 S 52.87 193.6 1090 MHz TOP 90 S 52 158.4 1090 MHz TOP 180 S 52.55 179.8 1090 MHz TOP 270 S 52.88 194 Sum of 4 top ports 1090 MHz 58.6 725.8 simultaneously 1090 MHz Bottom 0 S 57.42 552.97 Note: Power results for bottom antenna in directional mode is the same as respective top antenna at each mode See Appendix A for test plots p1680017_FCC_Part 87_Rev 1.0 Page 9 of 24

Conducted Spurious Emissions Engineer: Poona Saber Test Date: 8/17/16 Test Procedure The EUT was connected directly to a spectrum analyzer to verify that the EUT met the requirements for spurious emissions. The Limit was based on rule part 87.139 and spurious emission measurement procedures of KDB 971168 D01 were followed. Test Setup EUT Spectrum Analyzer See Appendix B for test results p1680017_FCC_Part 87_Rev 1.0 Page 10 of 24

Field Strength of Spurious Radiation Engineer: Poona Saber Test Date: 8/18/16 Test Procedure The EUT was setup in accordance with ANSI C63.26D15 2015 and tested per KDB 971168. The antenna was replaced with non-radiating matched load. The EUT is placed on non-conductive platform at a height of 0.8 meters above the ground plane of the semi-anechoic chambers for emissions below 1 GHz and at a height of 1.5 meter for emissions above 1 GHz. The EUT was rotated 360 degrees and the receive antenna raised and lowered to find the maximum emissions from 30MHz to the 10th harmonic of the fundamental. The EUT was set to the maximum power level allowed and the limit was set to 10log(P) – {43+10log(P)} RBW is set to 100Khz for measurements below 1Ghz and 1Mhz for measurements above 1Ghz. See Appendix C for test results p1680017_FCC_Part 87_Rev 1.0 Page 11 of 24

Occupied Bandwidth Engineer: Poona Saber Test Date: 8/17/16 Requirement Based on rule part 2.1049 the occupied Bandwidth is the frequency bandwidth such that, below its lower and above its upper frequency limits, the mean powers are each equal to 0.5 % of the total mean power of the given emission. Based on section 87.137 Authorized Bandwidth for Emission M1D is 14 MHz and V1D is 20 MHZ. Operation of 1030 MHz system is administered (“licensed”) by FAA. TCAS Minimum Operational Performance Specifications (MOPS) are provided in RTCA document DO-185B and Based on section 2.2.3.3 of RTCA DO-185B for allowable spectrum the bandwidth for V1D is declared as 20 MHz Test Procedure The following procedure shall be used for measuring (99 %) power bandwidth The spectrum analyzer center frequency is set to the nominal EUT channel center frequency. The frequency span for the spectrum analyzer shall be set wide enough to capture all modulation products including the emission skirts. The RBW shall be in the range of 1 % to 5 % of the anticipated OBW, and the VBW shall be set ≥ 3 × RBW. Set the detection mode to peak, and the trace mode to max-hold. Test Setup EUT Attenuator Spectrum Analyzer See Appendix D for Test Results p1680017_FCC_Part 87_Rev 1.0 Page 12 of 24

Emission Masks (Occupied Bandwidth) Engineer: Poona Saber Test Date: 8/17/16 Test Procedure The EUT was connected directly to a spectrum analyzer to verify that the EUT meets the required emissions mask. A reference level plot is provided to verify that the peak power was established prior to testing the mask. The transmitter is digital modulation therefore no data input is required to measure the emission mask. The RBW was set as close as possible to 1% of the occupied bandwidth to ensure accurate readings. Test Setup EUT Attenuator Spectrum Analyzer See Appendix E for Test Results p1680017_FCC_Part 87_Rev 1.0 Page 13 of 24

Frequency Stability (Temperature Variation) Engineer: Poona Saber Test Date: 8/19/16 Test Procedure The EUT was placed in an environmental test chamber and the RF output was connected directly to a frequency counter. The temperature was varied from -30ºC to 50ºC in 10ºC increments. After a sufficient time for temperature stabilization the RF output frequency was measured. The frequency tolerance Limit that is used is based on rule part 87.133 (@) band (7) 950 to 1215 MHz which is 20 PPM Test Setup EUT Attenuator Spectrum Analyzer Measurement Results 1030 MHz Tuned Frequency Frequency Upper Limit Lower Limit Temperature Measured Upper Lower (Hz) Tolerance (Hz) (Hz) centigrade Frequency Margin Margin ppm (Hz) (Hz) (Hz) 1,030,000,000 20.0 1030020600 1029979400 -30 1029998420 -22180.000000 19020.000000 1030020600 1029979400 -20 1029999920 -20680.000000 20520.000000 1030020600 1029979400 -10 1029999500 -21100.000000 20100.000000 1030020600 1029979400 0 1029999580 -21020.000000 20180.000000 1030020600 1029979400 10 1029998500 -22100.000000 19100.000000 1030020600 1029979400 20 1030000200 -20400.000000 20800.000000 1030020600 1029979400 30 1030000230 -20370.000000 20830.000000 1030020600 1029979400 40 1030000230 -20370.000000 20830.000000 1030020600 1029979400 50 1030000140 -20460.000000 20740.000000 1090 MHz Tuned Frequency Frequency Upper Limit Lower Limit Temperature Measured Upper Lower (Hz) Tolerance (Hz) (Hz) centigrade Frequency Margin Margin ppm (Hz) (Hz) (Hz) 1,090,000,000 20.0 1090021800 1089978200 -30 1089998580 -23220.000000 20380.000000 1090021800 1089978200 -20 1089998920 -22880.000000 20720.000000 1090021800 1089978200 -10 1090000000 -21800.000000 21800.000000 1090021800 1089978200 0 1089999580 -22220.000000 21380.000000 1090021800 1089978200 10 1090000170 -21630.000000 21970.000000 1090021800 1089978200 20 1090000080 -21720.000000 21880.000000 1090021800 1089978200 30 1090000250 -21550.000000 22050.000000 1090021800 1089978200 40 1090000250 -21550.000000 22050.000000 1090021800 1089978200 50 1090000670 -21130.000000 22470.000000 p1680017_FCC_Part 87_Rev 1.0 Page 14 of 24

Frequency Stability (Voltage Variation) Engineer: Poona Saber Test Date: 8/19/16 Test Procedure The EUT was placed in a temperature chamber at 20±5°C and connected directly to a spectrum analyzer. The power supply voltage to the EUT was varied from 85% to 115% of the nominal value and the RF output was measured. This was measured with both a 400 Hz 115 VAC supply and a variable DC voltage source. The frequency tolerance Limit that is used is based on rule part 87.133 (@) band (7) 950 to 1215 MHz which is 20 PPM Test Setup Power EUT Spectrum Supply Analyzer Test Results 4MCU Tuned Frequency Upper Limit Lower Limit Nominal Voltage Measured Upper Lower Frequency Tolerance (Hz) (Hz) Voltage Frequency Margin Margin (Hz) ppm (Hz) (Hz) (Hz) 1,030,000,000 20.0 1030020600 1029979400 115.00 97.75 1029999375 -21225 19975 1030020600 1029979400 115.00 1029993375 -27225 13975 1030020600 1029979400 132.25 1029999374 -21226 19974 1,090,000,000 20.0 1090021800 1089978200 115.00 97.75 1090000167 -21633 21967 1090021800 1089978200 115.00 1090000000 -21800 21800 1090021800 1089978200 132.25 1090000150 -21650 21950 6MCU Tuned Frequency Upper Limit Lower Limit Nominal Voltage Measured Upper Lower Frequency Tolerance (Hz) (Hz) Voltage Frequency Margin Margin (Hz) ppm (Hz) (Hz) (Hz) 1,030,000,000 20.0 1030020600 1029979400 115.00 97.75 1030000120 -20480 20720 1030020600 1029979400 115.00 1030000075 -20525 20675 1030020600 1029979400 132.25 1030000270 -20330 20870 1,090,000,000 20.0 1090021800 1089978200 115.00 97.75 1090000250 -21550 22050 1090021800 1089978200 115.00 1090000170 -21630 21970 1090021800 1089978200 132.25 1090000170 -21630 21970 Modulation Characteristics Section 2.1047 (d) states: “A curve or equivalent data which shows that the equipment will meet the modulation requirements of the rules under which the equipment is to be licensed “ See Appendix F for Modulation characteristics screen captures p1680017_FCC_Part 87_Rev 1.0 Page 15 of 24

Modulation Details 1. ATCRBS Interrogations Interrogations are sent out on an intentionally jittered 1+0.2 second interval in increasing power levels according to the schedules shown in tables 4, 5, 6. By transmitting the weakest signals first only the closest aircraft will reply. The interrogations progress in a roughly circular pattern weighted toward the front of the aircraft since that is the area from which the greatest closing speeds originate. In areas of high density the sequence is halted when the computer has reached a limit defined by a complex set of three inequalities. In this manner, interference to other TCAS equipped aircraft in the area is minimized since the strongest interrogations are the first to be dropped. The priority of elimination of steps for interference limiting is also shown in tables 4, 5, 6. This priority is inversely related to the order of the step sequence. Pulse Widths: 0.8 + 0.05 usec Rise Times (10% to 90%): +/- 0.05 usec., < 0.1 usec Fall Times (90% to 10%): +/- 0.05 usec., < 0.2 usec S1 P1 P3 P4 Pa Pb ATCRBS Interrogations Pulses P1, P3, and P4 will appear in all interrogation steps of the whisper / shout sequence and will be at the same power level. Pulse S1 will appear in all steps except the initial step on each antenna direction and at a level two or three dB below the level of P1, etc. according to the schedules shown in figures through this section. The steps occur at intervals of two milliseconds until the entire program is complete. The program length depends upon the individual aircraft installation. Options are available from using either an omni-directional bottom antenna or a directional bottom antenna. The top antenna is always directional. Pulses Pa and Pb are transmitted on the antenna. They are used for suppression of sensitivity of the receiving aircraft to the indicated pulses: S1 = -2 microseconds P1 = 0 microseconds PA = 2 microseconds PB = 19 microseconds P3 = 21 microseconds P4 = 23 microseconds p1680017_FCC_Part 87_Rev 1.0 Page 16 of 24

2. Mode S Interrogations Details of the Mode S interrogations are shown in figure below. The preamble and the synchronizing phase reversal (SPR) will appear the same in all interrogations. The data block will be either 56 or 112 chips of 0.25 microseconds, depending upon the type of reply desired. The data chips will be reversed phase from their previous chips if their data bid are 1, they will remain the same phase as the previous chips is their data bits are 0. The allowable transition time of the phase reversals is a maximum of 80 nanoseconds. The Mode S interrogations are transmitted after the whisper/shout sequence of ATCRBS interrogations. When no Mode S equipped aircraft are replying, the TCAS CU sends out Mode S broadcast interrogations based upon a 10 second pattern with 2 or 3 seconds between transmissions on the four lobes of the antenna. The time remaining after the Mode S transmissions are completed is used as a listening period for other un- acquired aircraft.  Preamble Pulse Widths: 0.8 + 0.05 usec  Rise Times (10% to 90%): < 0.1 usec  Fall Times (90% to 10%): < 0.2 usec SPR P1 P2 P6 Mode S Interrogations Timing of the Mode S interrogations is as follows, referenced to the leading edge of the P1 pulse: Pulse Distance P1 0.0 microseconds P2 2.0 microseconds P6 3.5 microseconds SPR 4.75 microseconds Bit 1 5.25 microseconds 19.75 microseconds (56 bits) End P6 33.75 microseconds (112 bits) Table 1 p1680017_FCC_Part 87_Rev 1.0 Page 17 of 24

Mode S Interrogations, Omni-directional Antenna Nominal Power Levels (dB relative to full power) Level P1,P3, P4 Pulses S1 Pulse 00 -13 -16 01 -15 -18 02 -17 -20 03 -19 -22 04 -21 -24 05 -23 -26 06 -25 none Table 2 p1680017_FCC_Part 87_Rev 1.0 Page 18 of 24

Mode S directional Antenna Interrogation Transmission Levels Nominal Power Levels (dB relative to full power) Level P1,P3, P4 S1 Pulse Pa, Pb Pulse D0 0 -3 -2 D1 -1 -3 -3 D2 -2 -5 -4 D3 -3 -5 -5 D4 -4 -7 -6 D5 -5 -7 -7 D6 -6 -9 -8 D7 -7 -9 -9 D8 -8 -11 -10 D9 -9 -11 -11 D10 -10 -13 -12 D11 -11 -13 -13 D12 -12 -15 -14 D13 -13 -15 -15 D14 -14 -17 -16 D15 -15 -17 -17 D16 -16 -19 -18 D17 -17 -19 -19 D18 -18 -21 -20 D19 -19 -21 -21 D20 -20 -23 -22 D21 -21 -23 -23 D22 -22 -25 -24 D23 -23 -25 -25 D24 -24 -27 -26 D25 -25 -27 -27 D26 -26 -- -16 (P4 only) Table 3 p1680017_FCC_Part 87_Rev 1.0 Page 19 of 24

Top Directional/Bottom –Omni-Directional Interrogation Sequence Bottom Omni-Directional Antenna Interference Limiting Priority / Interrogation Level 98 / 06 97 / 05 96 / 04 95 / 03 94 / 02 93 / 01 92 / 00 Top Directional Antenna Interference Limiting Priority / Interrogation Level 0° 180° 90° 270° 91 / D26 - - - 90 / D25 - - - 89 / D24 - - - 88 / D23 - 87 / D26 86 / D26 85 / D22 - 84 / D25 83 / D25 82 / D21 - 81 / D24 80 / D24 79 / D20 - 78 / D23 77 / D23 76 / D19 - 75 / D23 74 / D22 73 / D18 72 / D26 71 / D21 70 / D21 69 / D17 68 / D25 67 / D20 66 / D20 65 / D16 64 / D24 63 / D20 62 / D19 61 / D15 60 / D23 59 / D18 58 / D18 57 / D14 56 / D22 55 / D17 54 / D17 49 / D12 48 / D20 47/ D15 46 / D15 45 / D11 44 / D19 43 / D14 42 / D14 41 / D10 40 / D18 39 / D13 38 / D13 37 / D9 36 / D17 35 / D12 34 / D12 33 / D8 32 / D16 31 / D11 30 / D11 29 / D7 28 / D15 27 / D10 26 / D10 25 / D6 24 / D14 23 / D9 22 / D9 21 / D5 20 / D13 19 / D8 18 / D8 17 / D4 16 / D12 15 / D7 14 / D7 13 / D3 12 / D11 11 / D6 10 / D6 9 / D2 8 / D10 7 / D5 6 / D5 5 / D1 4 / D10 3 / D4 2 / D4 1 / D0 - - - (Interrogation sequence is right to left, top to bottom) Table 4 p1680017_FCC_Part 87_Rev 1.0 Page 20 of 24

Top Directional/Bottom Directional Interrogation Sequence - Interference Limiting Priority / Interrogation Level Top Directional Antenna Bottom Directional Antenna 0° 180° 90° 270° 0° 180° 90° 270° 113 / D26 - - - 112 / D26 - - - 111/ D25 - - - - 110 / D25 - - 109/ D24 - - - 108 / D24 - - - 107/ D23 - - - 106 / D23 - - - - - 105 / D26 104 / D26 - - 103 / D26 102 / D26 101 / D22 - - - 100 / D22 - - - - - 99 / D25 98 / D25 - - 97 / D25 96 / D25 95 / D21 - - - 94 / D21 93 / D26 - - - - 92 / D24 91 / D24 - - 90 / D24 89 / D24 88 / D20 - - - 87 / D20 86 / D25 - - - - 85 / D23 84 / D23 - - 83 / D23 82 / D23 81 / D19 - - - 80 / D19 79 / D24 - - - - 78 / D22 77 / D22 - - 76 / D22 75 / D22 74 / D18 - - - 73 / D18 - - - - 72 / D26 71 / D21 70 / D21 69 / D17 68 / D25 67 / D20 66 / D20 65 / D16 64 / D24 63 / D19 62 / D19 61 / D15 60 / D23 59 / D18 58 / D18 57 / D14 56 / D22 55 / D17 54 / D17 53 / D13 52 / D21 51 / D16 50 / D16 49 / D12 48 / D20 47 / D15 46 / D15 41 / D10 40 / D18 39 / D13 38 / D13 37 / D9 36 / D17 35 / D12 34 / D12 Interrogations for each sector that has a TA or 33 / D8 32 / D16 31 / D11 30 / D11 RA present. 29 / D7 28 / D15 27 / D10 26 / D10 25 / D6 24 / D14 23 / D9 22 / D9 21 / D5 20 / D13 19 / D8 18 / D8 17 / D4 16 / D12 15 / D7 14 / D7 13 / D3 12 / D11 11 / D6 10 / D6 9 / D2 8 / D5 7 / D5 6 / D5 5 / D1 4 / D9 3 / D4 2 / D4 1 / D0 - - - 1/ D17 1 / D23 1 / D21 1 / D21 1 / D16 1 / D22 1 / D20 1 / D20 1 / D15 1 / D21 1 / D19 1 / D19 1 / D14 1 / D20 1 / D18 1 / D18 1 / D13 1 / D19 1 / D17 1 / D17 1 / D18 1 / D16 1 / D16 1 / D17 1 / D15 1 / D15 1 / D16 1 / D14 1 / D14 1 / D15 1 / D13 1 / D13 1 / D14 1 / D13 (Interrogation sequence is right to left, top to bottom) Table 5 p1680017_FCC_Part 87_Rev 1.0 Page 21 of 24

3. ATCRBS Replies ATCRBS replies are pulse amplitude modulated signals (PAM), and are formed in response to Mode A or Mode C interrogations. Mode A replies consist of a 4096 code which is an identifier and an optional SPI pulse. The Transmitter CCA transmits ATCRBS reply pulse waveforms as shown in Figure below. F C A C A C A X B D B D B D F 1 1 1 2 2 4 4 1 1 2 2 4 4 2 SPI 4.35 0 1.45 2.9 4.35 5.8 7.25 8.7 10.15 11.6 13.05 14.5 15.95 17.4 18.85 20.3 TIME (s) ATCRBS Reply The designator of the information pulses and their positions from the first framing pulse are as follows: ATCRBS Reply Pulse Characteristics/Position Pulse Position (µsec) FIRST FRAMING PULSE 0.0 C1 1.45 A1 2.90 C2 4.35 A2 5.80 C4 7.25 A4 8.70 X1 10.15 B1 11.60 D1 13.05 B2 14.50 D2 15.95 B4 17.40 D4 18.85 LAST FRAMING PULSE 20.30 SPI 24.65 Table 6 Note 1: The X pulse is referenced here for possible future use. The ATCRBS Reply Pulse Spacing Tolerance is as follows: First framing pulse to information/last framing pulse ± 0.1 µsec Last framing pulse to SPI pulse ± 0.1 µsec Any 2 pulses in pulse group (except First framing pulse) ± 0.15 µsec The ATCRBS pulse characteristics are as specified in Table 7. ATCRBS Reply Pulses (in microseconds) Rise Time Decay Time Pulse Pulse Designator Duration Tolerance Min. Max. Min. Max Duration ATCRBS Reply Pulses 0.45 ± 0.10 0.05 0.1 0.05 0.2 Table 7 p1680017_FCC_Part 87_Rev 1.0 Page 22 of 24

4. Mode S Replies Mode S (Short & Long) replies, including preamble, data pulse, pulse shape, pulse spacing tolerance, and delay and jitter characteristics will be as follows. The Transmitter CCA transmits Mode S reply pulse waveforms as shown in table below. PREAMBLE DATA BLOCK 8.0 s 56 OR 112 s BIT BIT 1 BIT 2 BIT 3 BIT 4 N-1 BIT N P P P P 1 2 3 4 1 0 1 0 1 0 1 0 1 0 1 0 0.0 0.5 1.0 3.5 4.5 8.0 9.0 TIME (s) DATA BLOCK EXAMPLE: 0 0 1 0 0 0 1 Mode S Reply 1. Mode S Reply The Mode S preamble consists of four 0.5 ± 0.05 microsecond pulses. The second, third and fourth pulses are spaced 1.0, 3.5, and 4.5 microseconds respectively from the first transmitted pulse. The block of reply data pulses begins 8.0 microseconds after the first transmitted pulse and is either 56 or 112 one microsecond intervals depending on the type of Mode S Reply. A pulse with a width of 0.5 ± 0.05 microseconds is transmitted either in the first (data bit “1”) or in the second half (data bit “0”) of each interval. Also, if a pulse transmitted in the second half of one interval is followed by a pulse transmitted in the first half of the next interval, the two pulses merge. Once the merging occurs, a 1.0 ± 0.05 microsecond pulse is transmitted 2. Mode S Reply Pulse Shape The pulse rise and decay time are as specified in Table 8. Mode S Reply Pulses (in microseconds) Rise Time Decay Time Pulse Designator Min. Max. Min. Max Mode S Reply Pulses 0.05 0.1 0.05 0.2 Table 8 3. Mode S Reply Pulse Spacing Tolerance Mode S Reply pulses start at a defined multiple of 0.5 microseconds from the first transmitted pulse. The pulse position tolerance be ± 0.05 microseconds, measured from the first pulse of the reply. p1680017_FCC_Part 87_Rev 1.0 Page 23 of 24

Test Equipment Utilized Last Cal Cal Due Description Manufacturer Model # CT Asset # Date Date Horn Antenna EMCO 3115 i00103 1/20/15 1/20/17 Bilog Antenna Teseq CBL 6111Dk i00349 10/19/15 10/19/17 EMI Analyzer Agilent E7405A i00379 2/11/16 2/11/17 3 Meter Semi-Anechoic 3 Meter Semi-Anechoic Panashield i00428 11/26/13 11/26/16 Chamber Chamber Spectrum Analyzer Agilent E4407B i00331 09/18/15 09/18/16 Rohde & Spectrum Analyzer FSU I00501 03/25/16 03/25/17 Schwarz Preamplifier for 1-18GHz AFS44 00101 400 23-10P- Miteq i00509 N/A N/A horn antenna 44 Temperature Test Tenney Tenney Jr i00027 N/A N/A Chamber Hydra Data Bucket fluke 2635A I00343 5/4/16 5/4/17 In addition to the above listed equipment standard RF connectors and cables were utilized in the testing of the described equipment. Prior to testing these components were tested to verify proper operation. END OF TEST REPORT p1680017_FCC_Part 87_Rev 1.0 Page 24 of 24


Document Created: 2016-09-09 11:50:46
Document Modified: 2016-09-09 11:50:46
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