ASRI Concurrence letter

0074-EX-CN-2018 Text Documents

Harris Corporation

2018-01-29ELS_203971

Aviation Spectrum Resources Inc. ♦ 180 Admiral Cochrane Drive ♦ Suite 300 ♦ Annapolis, MD 21401 Phone: 410-266-6030 ♦ Fax: 443-951-0349 ♦ https://www.asri.aero 01/29/2018 Federal Communications Commission 445 12th Street SW, Washington, DC 20554 Dear Sirs, Please accept this letter as concurrence from Aviation Spectrum Resources Inc. (ASRI) for the Harris Corporation to conduct testing at various airports in the United States on radio frequency 136.975 MHz. Harris will be using a AirTel portable datalink test unit. A specification sheet for the unit is included for your information. Harris requires the use of Airtel ATN’s PVDL software to transmit ACARS data uplink messages utilizing the FANS 1/A+ capability over a VHF Mode 2 radio in order to perform ground check outs of test equipment installed in an aircraft prior to flight testing. Harris would send approximately 6 “test frames” every 10 seconds over the 136.975 MHz frequency to ensure that the installation of the test equipment in the aircraft is correct and is performing properly. Harris has provided ASRI with a list of potential airports where testing will occur. Additional sites must be approved by ASRI before Harris can operate on frequency 136.975 MHz at any location. This concurrence is provided based on no interference to other licensed stations. In the event of harmful interference, Harris Corporation must cease operations. Sincerely, Christopher Wheatley Aviation Spectrum Resources Inc.

Portable Test Equipment Solutions www.airtel-atn.com

Portable Test Equipment The implementation of the Data Link is one of the key methods to significantly reduce the congestion and improve safety in the air-ground voice channel. It increases Air Traffic Control (ATC) efficiency and capacity. Airtel ATN has specialised in data communications solutions for the aviation industry since 1993. Airtel ATN’s Portable Test Data Link solutions are in use by avionics manufacturers around the world. Hardware MTP The Multi Test Platform (MTP) Test and Diagnostic Station combines the Mini-VDR with a PC, power supplies and control circuits to provide a fully portable testing and monitoring station. MTP is built in a rugged carry case. All elements are situated on the main mounting plate which provides easy access for servicing and repair. It supports the hardware functionality required by, but not limited to, the VDB Generator and PVDL software applications. The MTP is ruggedised with 4 or 8 hours of battery life enabling use in hangars. Airline Maintenance Operators use it to simulate ground Air Traffic Control Centre data. It monitors signal strength and tests ACARS, ATN – CPDLC and FANS aircraft. Item Details Computer Dell, Latitude E6430 ATG Mini-VDR Mini-VDR P/N – 3101 GPS Garmin GPS18x Antenna The unit has its own antenna with the option to connect an external antenna DC Power MTP is powered by 14.4V Li-ion batteries. The unit has 2 battery slots enabling 4 or 8 hours operation. One or both batteries can be easily removed and stored. AC adapters are supplied for both the laptop and the MTP. The MTP has a dual internal battery charger. Case Pelican 1500 carry-on case. Optional wheels and retractable handle Weight 12.5 Kg (approx) excluding accessories Dimensions 470 x 357 x 176mm

Mini VDR The Mini-VDR is a 50mW signal generator/signal The Mini-VDR is situated on a mounting plate and detector-decoder and is a low power realisation of is not visible during operation For monitoring an ARINC 750 VDR. It detects and generates the purposes there are external LEDs on the mounting VHF D8PSK and MSK encoded signals in the range plate available representing Chan Busy and Operate. 118.000 to 137.000 MHz. The Mini-VDR is integrated The MTP is a complete ready-to-go system. However, into the MTP platform and exchanges data via RS-232 both the Mini-VDR and software are available or USB to the PVDL software application running on separately if required. the MTPs integrated notebook PC. The Mini-VDR is powered by 12VDC provided by the MTP platform. Item Details Power 12V DC, 1.2A max, 600mA average Dimensions 80 x 80 x 265 mm Weight 1.2 kg Frequency 118.000 to 137 MHz Transmitter RF Power... 50mW (+17dBm) Emissions per RTCA/DO-224 RF Mask per RTCA/DO-224 Receiver Sensitivity BER of 10-3 at -98dBm Input Range -107dBm to +7dBm Adj Channel Rejection 60dB min Interface I/O ADS-ASIP via USB RF: 50 ohm BNC

SOFTware PVDL-ASA PVDL–ASA is the VDL Mode 2 aircraft station emulation software with the addition of the full ARINC 618 POA aircraft implementation. In VDLM2 it establishes links with ground stations by first receiving in range Ground Station Information Frames (GSIFs), building a table of available ground stations and then initiating the link establishment procedure. The system is then available to exchange air-ground data under the control of the VDL Mode 2 protocols as defined by the ICAO SARPS and AEEC 631. PVDL-AS also includes the complete AOA (ACARS over AVLC) message handling and protocol conformance as defined by ARINC 618. PVDL-GS PVDL-GS is the software application that emulates the operation of a VDL Mode 2 ground station. It transmits GSIFs, accepts links with aircraft systems and exchanges data under the control of the VDL Mode 2 protocols as defined by the ICAO SARPS and AEEC 631. It includes a fully integrated A618 protocol engine to support AOA (ACARS-over-AVLC) message handling and protocol conformance. The PVDL-GS software application performs AVLC frame extraction and assembly, along with Reed-Solomon manipulation. It controls all aspects of Mini-VDR behaviour including operating frequency, transmit power and MAC parameters. PVDL is configurable to act as two individual ground stations and, in this mode conducts link handoff with the aircraft under test. In Concurrent Mode, the PVDL ground station transmits ACARS MSK squitter uplinks - on an entirely different frequency. This option allows avionics under test to detect the presence of the VDL Mode 2 ground station based on its advertised presence in the squitter content. PC.ACARS POA (Plain old ACARS) is the industry standard ACARS protocol and as part of the PVDL-ASA package, runs as a separate PC.ACARS application on the MTP platform. This is supplied as either an AEEC 618 equipped Ground Station (PC.ACARS-G) or Aircraft (PC.ACARS-A). PC.ACARS can be used actively - to participate in communications - or passively for monitoring and logging received data.

ATN CPDLC Test Tools (GMT/GAT) The Ground Manual Tool (GMT-ATN) provides a GUI for sending/receiving CM/CPDLC primitives. The ATC centre responds automatically to aircraft downlink messages. The automatic responses can be configured via a script. n CM-Logon, CM-Contact, CM-Abort n Supports Error Test Cases: invalid message n CPDLC Start, CPDLC End and CPDLC User Abort sequences, invalid message identifiers or services references, missing LACK and unsupported n Handles multiple aircraft on the ground side messages n Supports standard and protected mode CPDLC n Automatic messages: automatic generation of n Supports uplink and downlink message set messages with the possibility of configuring the specified in the EUROCAE ED-110B transmission rate n Supports single and concatenated uplink and n All uplink and downlink exchanges are logged for downlink messages further analysis n Supports ATN B2 (Version 1) and Sesar Version H FANS CPDLC Test Tools The GMT-FANS provides a HMI to send/receive AFN/CPDLC. n Automatic/manual AFN Logon Ack on reception of AFN Logon n Builds and sends AFN contact n Receives AFN Response/Complete messages n Supports single and concatenated sequence of up to 5 downlink CPDLC messages n Automatic/manual CPDLC connect request n Automatic/manual selection of message identification, message reference and time stamp n Supports uplink and downlink message set specified in document ED-100A n Logs all events CPDLC Multi-Aircraft Test Controller (GVS) n Automation of system testing Test Data for one or several ATC systems n Control of 1000 ATN/FANS aircraft Test Controller n Simulation of ATN/FANS network AC1 AC2 AC1000 n Emulation of a Ground ATC Aircraft Domain System independent of the System Under Test n Support of several aircraft ACSP ATN A/G Router ATN G/G Router Domain groups. This allows each group to act independently n TCL script-driven interface AGDLS ATN G/G Router ATC Centre

VDB/GBAS Generator The VDB Generator is a software application that also utilises the D8PSK capability of the Mini-VDR hardware. It simulates a VDB/GBAS Ground Station by providing a versatile source of VDB messages to exercise message decoding in the aircraft VDR or MMR under test. Depending on the test undertaken, the VDB Generator application provides the ability to construct fully compliant DO-246 data, or constructs data sequences designed to test the upper or lower level decoding. VDB Generator facilitates DO-253 MOPS testing including: steady carrier, amplitude variation within allocated time slot, frequency, transmit power, symbol rate, corruption of CRC values. D-ATIS/DCL Aircraft Station (ATS-A) PC.ACARS-A/ATS-A is a test and development tool that can be used to monitor and test the operation of Air Traffic Services data over ACARS by decoding and displaying data transactions between air and ground for supported message types. It provides functionality similar to that of an aircraft for sending and receiving supported ATS messages. PC.ACARS-A/ATS-A requires an installation of PC.ACARS-A. VMON (VDL Monitoring System) The VMON enables users monitor and log any VHF aeronautical band channel. It does this through the use of an Airtel ATN Mini-VDR. Users can observe the minimum, maximum and average signal levels as well as the type and amount of channel utilisation over a given time. The data is logged to a Comma Separated Value (CSV) file for post-analysis. A GPS module is used to track the time and position of the data collected within the log. The VMON can also act as a Remote Monitoring Unit (RMU) and connect to the MOON Central Monitoring Server (CMS).

Airtel ATN CPDLC Test Service ARINC Airtel ATN Test Facility Dublin ATN G/G Router ATN A/G Router ATN End System ATN G/G Router SITA ATN G/G Router ATN A/G Router Airtel ATN provides a commercial CPDLC test facility in Dublin. Airtel ATN is the first commercial company in the world to provide this testing service to aircraft operators. The CM/CPDLC test facility simulates two Air Traffic Control centres (TESTEIAT and TESTEIAU) connected to ARINC or SITA’s ATN/VDL network. Airtel ATN’s Test Facility tests CM and CPDLC including CPDLC hand off between ATC centres.. Airtel ATN is working with a number of aircraft operators to meet the 2013 and 2015 deadlines. Airtel ATN Airtel ATN is an independent, Irish company dedicated to providing Data Link Solutions to the Aerospace Industry since 1993. Airtel ATN’s solutions have been integrated with a number of different systems. The company is the only organisation to supply operational airborne and ground systems. Airtel ATN provides a complete range of ATN compliant products for operational use and validation including: n Air/Ground Data Link Server n Air/Ground and Ground/Ground Routers n Airborne ATN Router n Airborne and Ground Test/Validation Suites n MTP Multi Test Platform (including VDL Mode 2) and mini VDRs n VDL Mode 2 Ground Station technology Airtel ATN Portable Test Equipment customers

Contact Europe USA Dublin office (HQ) Washington Tel: + 353 1 284 2821 Tel: +1 301 961 1571 Fax: + 353 1 230 4610 Fax: +1 301 657 9776 Email: info@airtel-atn.com Email: info@airtel-atn.com www.airtel-atn.com www.airtel-atn.com www.airtel-atn.com September 2014


Document Created: 2018-01-29 13:39:24
Document Modified: 2018-01-29 13:39:24
© 2025 FCC.report
This site is not affiliated with or endorsed by the FCC