YJL-DAFJDXAIRBORNE AVIATION TRANSPONDER

STX 165STX 165 STX 165STX 165 STX 165 Mode A/C TransponderMode A/C Transponder Mode A/C TransponderMode A/C Transponder Mode A/C Transponder Pilot’s GuidePilot’s Guide Pilot’s GuidePilot’s Guide Pilot’s Guide Copyright 2011 SANDIA aerospace All Rights Reserved This document and the information contained herein is the proprietary data of SANDIA aerospace, Inc. No port of this document may be transmitted, reproduced, or copied in any form or by any means without the prior written consent of SANDIA aerospace, Inc. Due to SANDIA aerospace’s continued product and quality im- provement programs, information contained in this document is subject to change without prior notice. 1 STX 165 Panel Mounted Mode A/C Transponder Caution: Prior to starting or turning off the aircraft engine, the avioncs master should be turned off to prevent pos- sible damage to your avionics. Note: Mimimum dispay intensity is preset by the pilot in the user configuration mode. 2 The STX 165 and STX 165R (remote) are Mode A/C Air Traffic Control Beacon System (ATCRBS) transpon- ders that receive ground radar interrogations on a frequency of 1030 MHz and transmit replys on a frequency of 1090 MHz. The STX165 is capable of transmitting one of 4,096 pilot entered codes which differ in both the position and number of pulses that are transmitted. These coded reply’s allow ATC to display your aircraft’s position, selected identifier, groundspeed and altitude on their radar screens. This information aids controllers in maintain aircraft separation and proper approach and departure sequencing. The STX 165R is a remote unit that can be interfaced to and controlled by other manufactures navigations systems. For operation of the STX165R refer to the manufactures Pilot Guide of the unit controlling the STX 165R This manual will only address the operation of the panel mounted STX 165. The STX 165 is a panel mounted transponder and uses a bright OLED display that is viewable in virtually all lighting conditions. The STX 165 detects ambient lighting conditions and automatically dims or brightens depending on the conditions. The minimum display intensity can be set by the pilot in the user set up mode. The controls have been arranged to simplify data entry and retrieval while conserving valuable aircraft panel space. STX 165 Features In additon to displaying the transponder code, the STX 165 has the following features the provide the piolt with vaulable information Pressure Altitude.The STX 165 has a built-in encoder that is certified to 35,000 feet. The Unit will disply the Pressure alti- tude in the lower left hand quadrant Note: Temperature scale and flight timer initiation altitudes are preset by the pilot in the user configuration page. Note: Pressure altitude is derived from the STX 165’s built-in encoder and is not baro corrected. It is the sale altitue as that being transmitted to ATC OATWhen Sandia’s optional ST 78 OAT probe is installed the STX 165 will disply Outside Air Temeperature (OAT) in either F o or C o . Density AltitudeWhen Sandia’s optional ST 78 OAT probe is installed the STX 165 will disply Density Altitue in feet. Icing AlertWhen Sandia’s optional ST 78 OAT probe is installed the STX 165 will disply a Snow Flake in the upper right corner of the display at a preset temperature to indicate freezing and possible icing conditions. Eplased Flight TimerAn elpased flight timer is intitiated at system start up or after take off at a predetermined pilot entered alti- tude. Non resetable in flight Count Up TimerA resetable count up timer is controlled by the pilot. Count Down TimerA preset time is entered and started by the pilot. 3 STX 165 Display and Controls The STX 165 uses a bright sunlight readable OLED display that automatically dims to adjust to ambient light conditions. The can be times however when some pilots may have a hard time reading the display, especially in bubble canopies when the STX 165’s display is pointed directly at the sun. In this case, the pilot can press and hold the VFR pushbutton for three seconds and the code will be displayed in large numbers. In this condition, the Mode will continue to be displayed and both the mode and code can be changed. To exit this mode press and hold the VFR pushbutton for three seconds again. The STX 165 display can be thought of as being divided into four quadrants. Upper Left Hand Quadrant is the Mode in which the STX 165 is operating. SBY: or standby the display is on and the unit fully functional, except it is not replying to transponder interrogations. ON:The STX 165 is on and responding to interrogations but not send out the aircraft altitude infor- mation also call Mode A ALT: The STX 165 is on and responding to transponder interrogation with altitude data, also called Mode C. Reply Light This is a bar that will blink at a 1 Hz rate whenever the STX 165 is replying to transponder interrogation It is directly under the Mode. Upper Right Hand Quadrant: This displays the transponder code currently being transmitted by the STX 165 Lower Left Hand Quadrant: This show the pressure altitude (PALT) being sensed by the built-in encoder and transmitted by the STX 165. If the Sandia ST 78 OAT probe is installed the quadrant will also display Density Altitude (DALT) and Outside Air Temperature (OAT) Lower Right Hand Quadrant: This area shows the three timer functions, Elapsed Flight Time (EFT), Timer Up, and Timer Down (Timer DN). 4 Caution: Pressing and holding the VFR pushbutton for less than three seconds will cause the VFR code to be displayed and become the active code. SELECTThe SELECT knob is the large outer knob of the stacked pair on the lower right of the STX 165. This is a momentary knob that can be turned clockwise or counter clockwise and will move the ‘cursor’ one postion. When released, it will return to the nutral position. The SELECT knob is used to move the cursor over the code digits so that a different code can be entered by the pilot. DATAThe DATA k…

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February 15, 2011 Timco Engineering Inc. 849 NW State Road 45 Newberry, FL32669 Applicant: Sandia Aerospace Corporation 3700 Osuna Rd NE, suite 711 Albuquerque, NM 87109 Re: Confidentiality for application submittal information regarding FCC ID: YJL-DAFJDX PRODUCT: Aviation Transmitter operated under part CFR 47 part 87 Dear Sirs: Sandia Aerospace Corporation requests that the material in the Schematics, Operational Description, Block diagram, and parts list be withheld from public disclosure in accordance with Section 0.459 of the Commissions Rules, 47 C.F.R. 0.459, following grant of the application. In support of this request, Sandia Aerospace Corporation submits the following information. CONFIDENTIAL FILES Conf BlkDiaSTX165.pdf Conf OpDesSTX165.pdf Conf Schem Tx STX165.pdf Conf Schem Tx2 STX165.pdf Conf Schem Dspl STX165.pdf Conf Schem Rx STX165.pdf Conf Schem Pwr STX165.pdf Conf Schem DAC STX165.pdf Conf PartList STX165.pdf 1. Identification of the specific information for which confidential treatment is sought: The materials set forth in the Operational Description, block diagram, parts list, and Schematics, which are segregated, from the non-confidential exhibits of the application, are those for which confidentiality is sought. 2. Identification of the Commission proceeding in which the information was submitted or a description of the circumstances giving rise to the submission: The proceeding is that involving the application for equipment authorization (certification) under FCC ID No: YJL-DAFJDX ROGERS LABS, INC. 4405 West 259 th Terrace Louisburg, KS66053 913 837-3214 3 4 5 6 7 8 3. Explana trade sec This mat material 4. Explana competit The mate transmitt have a va 5. Explana Disclosur engineeri would als developm Corporat 6. Identific disclosur The infor Corporat 7. Identific previous To the kn publicly numero u FCC, the this radio 8. Justifica not be av This mat relativel y and manu As such, attempt t be emplo Should y Thank yo Sincerel y Scot Rog ation of the d cret or is pr erial include is treated as ation of the d tion: erial for whic ting equipme ariety of com ation of how re would, in ing personne so offer com ment, thereby tion cation of any re: rmation for w tion and not cation of wh s disclosure nowledge of heretofore. us disclosure e protection s o technology ation of the p vailable for erial should y frequently, ufacturing te it is importa to use knowl oyed. you require a ou for your c y, gers degree to wh rivileged: es a detailed highly conf degree to wh ch confident ent that is of mpeting sour w disclosure n effect, give el, who have mpetitors add y allowing c y measures which confid made availa hether the in of the infor f those prepa While the g s in industr y sought is nar y. period duri public dis c not be discl , disclosure o echniques th ant that the d ledge of the any further in consideration hich the inf theory of op fidential busi hich the inf tiality is sou ffered on a h rces. of the infor away the fru e designed th ditional unwa competitors a taken by th dential treatm able to third p nformation rmation to t aring this app eneral theory y and standar rrowly draw ng which th closure: osed for at l of the design hat could hav design not be design to co nformation, p n in this mat formation is peration, circ iness inform formation co ught is emplo ighly compe rmation cou uits of the la he equipmen arranted insi an advantage he submittin ment is soug parties excep is available third parties plication, the y of operatio rds groups a wn and pertai he submittin east 25 year n information ve an adverse e made avail ompromise th please conta tter. s commercia cuit diagram mation. oncerns a se oyed in the d etitive basis. uld result in abors of San nt and the ma ight into the e, not availab ng party to p ght is kept co pt pursuant t to the publ s: e information on of this eq s well as in r ns to certain ng party ass rs. While im n would lead e competitiv lable to unau he applicatio act the under al or financi ms, and schem ervice that i design and m Customers substantial dia Aerospa anufacturing state of the ble to Sandia prevent una onfidential b to non-disclo lic and the e n has not be quipment has rule making n specific im serts that th mprovements d to insights ve effect for m uthorized per ons for which rsigned. ial, or conta matic. As suc is subject to manufacture o for this equ l competitiv ace Corporati g process. D product a Aerospace authorized by Sandia Ae osure agreem extent of any en disclosed s been the su proceedings mplementation he material s in design ar into both de many years rsons who m h the equipm ains a ch, this o of this uipment ve harm: ion’s Disclosure e erospace ments. y d ubject of s of the ns of should re made esign to come. might ment will

February 15, 2011 Timco Engineering Inc. 849 NW State Road 45 Newberry, FL 32669 Applicant: Sandia Aerospace Corporation Equipment: FCC ID: YJL-DAFJDX 3700 Osuna Rd NE CORES number: 0019-9533-48 Albuquerque, NM 87109 FCC Rules: Parts 2 and 87 Gentlemen The form 731 and application have been electronically submitted and any attachments up loaded to your web site for use in obtaining grant of certification. Confidentiality is requested as outlined below. Permanent confidential files Sandia Aerospace Corporation requests that the material in the Parts List, Schematics, block diagram, and Operational Description be withheld from public disclosure in accordance with Section 0.459 of the Commission’s Rules, 47 C.F.R. 0.459, following grant of the application. A statement of confidentiality will be attached with the application at the time of submittal. Exhibit File Schematics Conf Schem Tx STX165.pdf Schematics Conf Schem Tx2 STX165.pdf Schematics Conf Schem Dspl STX165.pdf Schematics Conf Schem Rx STX165.pdf Schematics Conf Schem Pwr STX165.pdf Schematics Conf Schem DAC STX165.pdf Parts List Conf PartList STX165.pdf Block diagram Conf BlkDiaSTX165.pdf Operational Description Conf OpDes STX165.pdf Should you require any further information, please contact the undersigned. Thank you for your consideration in this matter. Sincerely, Scot Rogers Rogers Labs, Inc. Enclosures ROGERS LABS, INC. 4405 West 259 th Terrace Louisburg, KS 66053 Phone / Fax (913) 837-3214

Rogers Labs, Inc. Sandia Aerospace Corporation 4405 W. 259th Terrace Model: STX 165 / STX 165R FCC ID: YJL-DAFJDX Louisburg, KS 66053 Test #: 110206 Phone/Fax: (913) 837-3214 Test to: CFR47 Paragraphs 2 and 87 Date: 2/15/2011 Revision 1 File: ExtPho STX165 Page 1 of 2 Equipment photographs Rogers Labs, Inc. Sandia Aerospace Corporation 4405 W. 259th Terrace Model: STX 165 / STX 165R FCC ID: YJL-DAFJDX Louisburg, KS 66053 Test #: 110206 Phone/Fax: (913) 837-3214 Test to: CFR47 Paragraphs 2 and 87 Date: 2/15/2011 Revision 1 File: ExtPho STX165 Page 2 of 2

Rogers Labs, Inc. Sandia Aerospace Corporation 4405 W. 259th Terrace Model: STX 165 / STX 165R FCC ID: YJL-DAFJDX Louisburg, KS 66053 Test #: 110206 Phone/Fax: (913) 837-3214 Test to: CFR47 Paragraphs 2 and 87 Date: 2/15/2011 Revision 1 File: LabelSmp STX165 Page 1 of 1 Sample and Placement Label options FCC ID Label Placement

Rogers Labs, Inc. Sandia Aerospace Corporation 4405 W. 259th Terrace Model: STX 165 / STX 165R FCC ID: YJL-DAFJDX Louisburg, KS 66053 Test #: 110206 Phone/Fax: (913) 837-3214 Test to: CFR47 Paragraphs 2 and 87 Date: 2/15/2011 Revision 1 File: IntPho STX165 Page 1 of 2 Internal photographs Rogers Labs, Inc. Sandia Aerospace Corporation 4405 W. 259th Terrace Model: STX 165 / STX 165R FCC ID: YJL-DAFJDX Louisburg, KS 66053 Test #: 110206 Phone/Fax: (913) 837-3214 Test to: CFR47 Paragraphs 2 and 87 Date: 2/15/2011 Revision 1 File: IntPho STX165 Page 2 of 2

Albuquerque, New Mexico Document Number: 305689-XX-TP Effective Date: 20090318 Revision: 1-WK Title: TP, STX 165 Transmitter CCA REVISION LIST REVISIONDATEDESCRIPTIONBY/APPROVAL 120090318Initial DraftFEF68926 PURPOSE This document describes the procedures to test the STX 165 transmitter board, 305689-XX-B. This document contains proprietary information and designs owned by Sandia Aerospace, except as specific right granted to the United States Government, other Government agencies or other person or firm as defined by contract or other document executed by Sandia Aerospace. Neither this document nor its contents may be disclosed or reproduced in whole or in part without the written consent of Sandia Aerospace. TP, STX 165 Transmitter CCA305689-XX-TP Rev: 1-WK Table of Contents 1 INTRODUCTION.............................................................3 1.1 TEST EQUIPMENT.........................................................3 2 Testing Caution..........................................................3 3 Test equipment set-up, calibration and CCA pre-set.......................3 3.1 Setup..................................................................4 3.1.1 Understanding analog power measurements of pulsed RF signals.........4 3.1.2 Calibration..........................................................5 3.1.3 Test Equipment Connections & Settings................................5 3.1.4 CCA Pre-sets ........................................................6 4 Power Supplies...........................................................6 4.1 Main 5Vdc Supply.......................................................6 4.2 33Vdc Supply...........................................................6 5 Transmitter alignment....................................................7 5.1 Q2 gate bias...........................................................7 5.2 RF signal generator....................................................7 5.3 Power meter setting....................................................7 5.4 Tuning.................................................................7 5.5 Increase RF input......................................................8 5.6 RF final tune..........................................................8 5.7 RF stability...........................................................8 5.8 RF power output........................................................8 6 Jumper removal...........................................................8 7 Test Data Sheet........................................................10 Table of Figures Figure 1: Basic Test Setup..................................................4 Figure 2: Power Supply Test Points..........................................7 Figure 3: Set-up & Tuning Components........................................9 Sandia Aerospace - Confidential – Do Not Duplicate or Distribute Page 2 of 9 TP, STX 165 Transmitter CCA305689-XX-TP Rev: 1-WK 1 INTRODUCTION Circuit Card Assembly 305689-XX-B is one of the CCA’s used to make up the STX 165 & 165R. This procedure pre-tests the hardware assembly of this CCA. 1.1 TEST EQUIPMENT The following is a list of equipment required to test the 305689-XX-B CCA. Equivalent equipment is items that can perform the same functions with equal or greater accuracy than the item used. 2 Digital Multi-Meters, Fluke 26III or equivalent Two adjustable DC power supplies. One Capable of at least 1 amp at +50Vdc and another capable of .5 amp at +5.8VDC. Note: A single DC power supply capable of .5 amp 11-33 volts and a known working STX 165 power supply 305691-XX-C can be substituted. Dual Channel Oscilloscope. HP8594E Spectrum Analyzer HP4538 Analog Power Meter Agilent 33220A Function Generator HP 8752 Network Analyzer RF adapter Kit 10 Watt 30dB RF Attenuator 2 Testing Caution Devices of the 305689-XX-B CCA are ESD (Electro Static Discharge) sensitive. Test personnel shall observe manufacturing ESD procedures whenever servicing the 305689-XX-B CCA. Additionally, when picking up the circuit card assembly, try to ground your body to the ground of the circuit card assembly by holding the shell of the SMA connector. This ensures that your body and circuit ground are similar before touching components of the circuit card assembly. 3 Test equipment set-up, calibration and CCA pre-set Sandia Aerospace - Confidential – Do Not Duplicate or Distribute Page 3 of 9 TP, STX 165 Transmitter CCA305689-XX-TP Rev: 1-WK 3.1 Setup Setup the UUT to the test equipment as shown below. 3.1.1 Understanding analog power measurements of pulsed RF signals Pulsed RF is bursts (pulses) of RF with no RF present between pulses. The most general case of pulsed RF consists of pulses of a fixed pulse width (PW) which come at a fixed time interval, or period (T). Pulses at a fixed interval of time arrive at a rate or frequency referred to as the pulse repetition frequency (PRF) of so many pulses per second. Pulse repetition interval (PRI) and PRF are reciprocals of each other. PRF=1/T=1/PRI The actual power in pulsed RF occurs during the pulses, so in order to measure with an analog power meter, it shall be necessary to obtain an average value of power. The average value is defined as the level where the pulse area above the average is equal to area below average between pulses. The average area is equal to the average value of power multiplied by the pulse period. Sandia Aerospace - Confidential – Do Not Duplicate or Distribute Page 4 of 9 Figure 1: Basic Test Setup TP, STX 165 Transmitter CCA305689-XX-TP Rev: 1-WK P(avg) X T= P(peak) X PW or P(avg)/P(peak) = PW/T = PW X PRF = PW/PRI = duty cycle The ratio of the average power to the peak pulse power is the duty cycle and represents the percentage of time the power is present. To express the duty cycle as a percentage, multiply the value obtained by 100 and add the percent symbol. Example: Pulse width of 300nS and a pulse period of 130uS. 300nS/130uS=.00231 X 100 = .231% duty cycle ratio Duty cycle …

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Rogers Labs, Inc. Sandia Aerospace Corporation 4405 W. 259th Terrace Model: STX 165 / STX 165R FCC ID: YJL-DAFJDX Louisburg, KS 66053 Test #: 110206 Phone/Fax: (913) 837-3214 Test to: CFR47 Paragraphs 2 and 87 Date: 2/15/2011 Revision 1 File: RFExp STX165 Page 1 of 1

NVLAP Lab Code 200087-0 Rogers Labs, Inc. Sandia Aerospace Corporation 4405 West 259 th Terrace Model: STX 165 SN: 91 Louisburg, KS 66053 Test #: 110206 FCC ID: YJL-DAFJDX Phone/Fax: (913) 837-3214 Test to: FCC Parts 2 and 87 Page 1 of 34 Revision 1 File: Sandia Aerospace STX165 TstRpt Date: February 15, 2011 Test Report for Submittal Application For Grant of Certification FCC CFR47 Paragraph 87 Models: STX 165 / STX 165R 1090 MHz Mode A/C Aviation Transponder FCC ID: YJL-DAFJDX Sandia Aerospace Corporation 3700 Osuna Rd NE Suite 711 Albuquerque, NM 87109 Test Report Number 110206 Authorized Signatory: Scot D. Rogers NVLAP Lab Code 200087-0 Rogers Labs, Inc. Sandia Aerospace Corporation 4405 West 259 th Terrace Model: STX 165 SN: 91 Louisburg, KS 66053 Test #: 110206 FCC ID: YJL-DAFJDX Phone/Fax: (913) 837-3214 Test to: FCC Parts 2 and 87 Page 2 of 34 Revision 1 File: Sandia Aerospace STX165 TstRpt Date: February 15, 2011 Test Report For Application of Certification For Sandia Aerospace Corporation 3700 Osuna Rd NE Suite 711 Albuquerque, NM 87109 Phone: (505)341-2930 Mr. Dennis Schmidt President Models: STX 165 / STX 165R Mode A/C Aviation Transponder Frequency Range: 1090 MHz FCC ID: YJL-DAFJDX Test Date: February 6, 2011 Certifying Engineer: Scot D. Rogers Rogers Labs, Inc. 4405 West 259th Terrace Louisburg, KS 66053 Telephone/Facsimile: (913) 837-3214 This report shall not be reproduced except in full, without the written approval of the laboratory. This report must not be used by the client to claim product endorsement by NVLAP, NIST, or any agency of the U.S. Government. ROGERS LABS, INC. 4405 West 259 th Terrace Louisburg, KS 66053 Phone / Fax (913) 837-3214 NVLAP Lab Code 200087-0 Rogers Labs, Inc. Sandia Aerospace Corporation 4405 West 259 th Terrace Model: STX 165 SN: 91 Louisburg, KS 66053 Test #: 110206 FCC ID: YJL-DAFJDX Phone/Fax: (913) 837-3214 Test to: FCC Parts 2 and 87 Page 3 of 34 Revision 1 File: Sandia Aerospace STX165 TstRpt Date: February 15, 2011 Table of Contents TABLE OF CONTENTS .................................................................................................. 3 FORWARD ..................................................................................................................... 5 OPINION / INTERPRETATION OF RESULTS ............................................................... 5 APPLICABLE STANDARDS & TEST PROCEDURES .................................................. 5 ENVIRONMENTAL CONDITIONS.................................................................................. 5 2.1033(C) APPLICATION FOR CERTIFICATION .......................................................... 6 UNITS OF MEASUREMENTS ........................................................................................ 7 TEST SITE LOCATIONS ................................................................................................ 7 LIST OF TEST EQUIPMENT .......................................................................................... 7 SYSTEM DESCRIPTION ................................................................................................ 8 RADIO FREQUENCY POWER OUTPUT ....................................................................... 9 Measurements Required ........................................................................................................................................ 9 Test Arrangement ................................................................................................................................................... 9 Transmitter Power Results .................................................................................................................................. 10 Figure 1 Maximum Power Output (Peak) .......................................................................................................... 10 2.1047 MODULATION CHARACTERISTICS ............................................................... 11 Measurements Required ...................................................................................................................................... 11 Modulation Characteristics Results .................................................................................................................... 11 Figure 2 Audio Frequency Response / Modulation Characteristics (pulse train and width) .............................. 12 2.1049 OCCUPIED BANDWIDTH ................................................................................ 13 Measurements Required ...................................................................................................................................... 13 Test Arrangement ................................................................................................................................................. 13 Occupied Bandwidth Results ............................................................................................................................... 13 Figure 3 Occupied Band Width, Carrier frequency 1090.00 MHz ..................................................................... 14 NVLAP Lab Code 200087-0 Rogers Labs, Inc. Sandia Aerospace Corporation 4405 West 259 th Terrace Model: STX 165 SN: 91 Louisburg, KS 66053 Test #: 110206 FCC ID: YJL-DAFJDX Phone/Fax: (913) 837-3214 Test to: FCC Parts 2 and 87 Page 4 of 34 Revision 1 File: Sandia Aerospace STX165 TstRpt Date: February 15, 2011 2.1051 SPURIOUS EMISSIONS AT ANTENNA TERMINALS ..................................... 15 Measurements Required ...................................................................................................................................... 15 Test Arrangement ................................................................................................................................................. 15 Spurious Emissions at Antenna Terminal Results .......................................................................................…

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Rogers Labs, Inc. Sandia Aerospace Corporation 4405 W. 259th Terrace Model: STX 165 / STX 165R FCC ID: YJL-DAFJDX Louisburg, KS 66053 Test #: 110206 Phone/Fax: (913) 837-3214 Test to: CFR47 Paragraphs 2 and 87 Date: 2/15/2011 Revision 1 File: TSup STX165 Page 1 of 1 Test setup photographs