ATTACHMENT 5 - Industry Comments and Questions Matrix - AMD 0001.xlsx

XLSX spreadsheet 399 KB Posted

Attached to
FAA Airspace Non-Cooperative Radar (ANSR) Request for Information Federal contract opportunity
Solicitation number
ANSR-MS-00002
Issued by
Department of Transportation Federal Aviation Administration Enroute Terminal Contracts

About this file

This is a questions and answers matrix documenting industry comments and FAA responses regarding the Airspace Non-Cooperative Surveillance Radar (ANSR) system specification. The matrix contains 43 questions focused primarily on technical requirements and clarifications about the ANSR system.

Key themes in the Q&A include multiple vendor inquiries about using passive radar solutions (which FAA rejected, requiring an active transmitter subsystem), clarifications about environmental requirements, requests for various FAA documentation, and questions about the surveillance-as-a-service model. The FAA's responses indicate that vendors would be responsible for securing land and permits for locations not on air operations areas, service delivery points would be at TRACONs and ARTCCs, and legacy ASR systems are expected to operate until 2035. The FAA also clarified that solutions would need either ADS-B or WAM input capability (but not both simultaneously) and that non-rotating antenna solutions would be considered if they can provide data as if rotating.

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Other files for this federal contract opportunity

Other files attached to FAA Airspace Non-Cooperative Radar (ANSR) Request for Information, newest first.
File Type Posted
ANSR Request for Information AMD 0002.pdf PDF
ANSR Request for Information AMD 0001.pdf PDF
ATTACHMENT 3 - Draft System Specification Document - AMD 0001.pdf PDF
ATTACHMENT 1 - Non-Cooperative Radar System.docx DOCX document
ATTACHMENT 3 - Draft System Specification Document.docx DOCX document
ATTACHMENT 2 - Non-Cooperative Radar as a Service.docx DOCX document
ATTACHMENT 5 - Comments and Questions Matrix.xlsx XLSX spreadsheet
ANSR Request for Information.pdf PDF
ATTACHMENT 4 - Business Declaration Form.pdf PDF
ATTACHMENT 6 - ANSR System Specification Comment Matrix.xlsx XLSX spreadsheet

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Comment Resolution Comment # Document Section Text Question / Comment / Discussion Recommendation, Suggested Text, or Rationale Criticality C = Critical - significant issues that could affect the overall quality, accuracy, integrity, or effectiveness of the document.

S = Substantive - improvements that enhance the content, clarity, or depth of the document, without changing its overall structure or intent.

A = Administrative - formatting, grammar, spelling, punctuation, citation style, or other technical aspects of the document.FAA Response
1ATTACHMENT 3 - Draft System Specification Document1.2 DescriptionThe ANSR system consists of three subsystems:
1.The Transmitter subsystemIs it acceptable to achieve the purpose of the ANSR system without a transmitter subsystem inside the ANSR system, but with transmitters of opportunity?To increase effectiveness of the document by opening it up to alternative solutions, we recommend

either deleting this request or change "1. The Transmitter subsystem" to

"1. The Transmitter subsystem (alternatively transmitters of opportunity may be used)"CThe FAA requirements are for a Non-Cooperative Surveillance Radar solution with a transmitter subsystem. The FAA is not considering passive Non-Cooperative Surveillance Radar at this time.
2ATTACHMENT 3 - Draft System Specification DocumentFigure 1-2Is it acceptable to achieve the purpose of the ANSR system without a transmitter subsystem inside the ANSR system, but with transmitters of opportunity?To increase effectiveness of the document by opening it up to alternative solutions, we recommend deleting this Figure and adjusting according references.CThe FAA requirements are for a Non-Cooperative Surveillance Radar solution with a transmitter subsystem. The FAA is not considering passive Non-Cooperative Surveillance Radar at this time.
3ATTACHMENT 3 - Draft System Specification Document3.1.1.1 F1.1 Transmit Target Waveform[ANSR-SPEC-SR0003] The ANSR system must transmit Electromagnetic energy to detect targets in the Service Volume.If it is accepted to detect targets in the Service Volume without transmitting Electromagnetic energy by the ANSR system, is it possible to delete the requirement of transmitting Electromagnetic Energy?To increase effectiveness of the document by opening it up to alternative solutions, we suggest shortening this requirement down to "The ANSR system must detect targets in the Service Volume."CThe FAA requirements are for a Non-Cooperative Surveillance Radar solution with a transmitter subsystem. The FAA is not considering passive Non-Cooperative Surveillance Radar at this time.
4ATTACHMENT 3 - Draft System Specification Document3.1.5.1 F5.1 Transmit Weather Waveform[ANSR-SPEC-SR0034] The ANSR system must transmit EM energy to detect precipitation in the Service Volume.If it is accepted to detect precipitation in the Service Volume without transmitting Electromagnetic energy by the ANSR system, is it possible to delete the requirement of transmitting Electromagnetic Energy?To increase effectiveness of the document by opening it up to alternative solutions, we suggest shortening this requirement down to "The ANSR system must detect precipitation in the Service Volume."CThe FAA requirements are for a Non-Cooperative Surveillance Radar solution with a transmitter subsystem. The FAA is not considering passive Non-Cooperative Surveillance Radar at this time.
5ATTACHMENT 3 - Draft System Specification Document3.2.8 Spectrum and Pulse Repetition Frequencies (PRF)[ANSR-SPEC-SR0127] The ANSR system must transmit in the frequency range of 2700 to 2900 MHz.If it is accepted to comply with the other requirements for the Service Volume without transmitting Electromagnetic energy by the ANSR system, is it possible to narrow this requirement down to transmitting ASNR?To increase effectiveness of the document by opening it up to alternative solutions, we recommend replacing this requirement by "If the ANSR system needs transmitting Electromagnetic Energy, it must transmit in the frequency range of 2700 to 2900 MHz."CThe FAA requirements are for a Non-Cooperative Surveillance Radar solution with a transmitter subsystem. The FAA is not considering passive Non-Cooperative Surveillance Radar at this time.
6ATTACHMENT 3 - Draft System Specification Document3.2.8 Spectrum and Pulse Repetition Frequencies (PRF)[ANSR-SPEC-SR0128] The ANSR system must meet frequency bandwidth limits of +/- 1.9 MHz from assigned frequency at 3dB below peak frequency power,If it is accepted to comply with the other requirements for the Service Volume without transmitting Electromagnetic energy by the ANSR system, is it possible to narrow this requirement down to transmitting ASNR?To increase effectiveness of the document by opening it up to alternative solutions, we recommend replacing this requirement by "If the ANSR system needs transmitting Electromagnetic Energy, it must meet frequency bandwidth limits of +/- 1.9 MHz from assigned frequency at 3dB below peak frequency power,"CThe FAA requirements are for a Non-Cooperative Surveillance Radar solution with a transmitter subsystem. The FAA is not considering passive Non-Cooperative Surveillance Radar at this time.
7ATTACHMENT 3 - Draft System Specification Document3.2.8 Spectrum and Pulse Repetition Frequencies (PRF)[ANSR-SPEC-SR0129] The ANSR system must meet frequency bandwidth limits of +/- 7.0 MHz from assigned frequency at 40dB below peak frequency power.If it is accepted to comply with the other requirements for the Service Volume without transmitting Electromagnetic energy by the ANSR system, is it possible to narrow this requirement down to transmitting ASNR?To increase effectiveness of the document by opening it up to alternative solutions, we recommend replacing this requirement by "If the ANSR system needs transmitting Electromagnetic Energy, it must meet frequency bandwidth limits of +/- 7.0 MHz from assigned frequency at 40dB below peak frequency power."CThe FAA requirements are for a Non-Cooperative Surveillance Radar solution with a transmitter subsystem. The FAA is not considering passive Non-Cooperative Surveillance Radar at this time.
8ATTACHMENT 3 - Draft System Specification Document3.2.8 Spectrum and Pulse Repetition Frequencies (PRF)[ANSR-SPEC-SR0130] The ANSR total system phase stability must be less than or equal to -55 dB relative to peak power throughout the Service Volume.If it is accepted to comply with the other requirements for the Service Volume without transmitting Electromagnetic energy by the ANSR system, is it possible to narrow this requirement down to transmitting ASNR?To increase effectiveness of the document by opening it up to alternative solutions, we recommend replacing this requirement by "If the ANSR system needs transmitting Electromagnetic Energy, its total system phase stability must be less than or equal to -55 dB relative to peak power throughout the Service Volume."CThe FAA requirements are for a Non-Cooperative Surveillance Radar solution with a transmitter subsystem. The FAA is not considering passive Non-Cooperative Surveillance Radar at this time.
9ATTACHMENT 3 - Draft System Specification Document3.2.8 Spectrum and Pulse Repetition Frequencies (PRF)[ANSR-SPEC-SR0131] The ANSR system must provide site adjustment of the frequency over the 2700 to 2900 MHz range with a resolution of less than or equal to 1 MHz.If it is accepted to comply with the other requirements for the Service Volume without transmitting Electromagnetic energy by the ANSR system, is it possible to narrow this requirement down to transmitting ASNR?To increase effectiveness of the document by opening it up to alternative solutions, we recommend replacing this requirement by "If the ANSR system needs transmitting Electromagnetic Energy, it must provide site adjustment of the frequency over the 2700 to 2900 MHz range with a resolution of less than or equal to 1 MHz."CThe FAA requirements are for a Non-Cooperative Surveillance Radar solution with a transmitter subsystem. The FAA is not considering passive Non-Cooperative Surveillance Radar at this time.
10ATTACHMENT 3 - Draft System Specification Document3.2.8 Spectrum and Pulse Repetition Frequencies (PRF)[ANSR-SPEC-SR0132] The ANSR system must provide a minimum of 8 site adjustable transmitter RF blanking zones.If it is accepted to comply with the other requirements for the Service Volume without transmitting Electromagnetic energy by the ANSR system, is it possible to narrow this requirement down to transmitting ASNR?To increase effectiveness of the document by opening it up to alternative solutions, we recommend replacing this requirement by "If the ANSR system needs transmitting Electromagnetic Energy, it must provide a minimum of 8 site adjustable transmitter RF blanking zones."CThe FAA requirements are for a Non-Cooperative Surveillance Radar solution with a transmitter subsystem. The FAA is not considering passive Non-Cooperative Surveillance Radar at this time.
11ATTACHMENT 3 - Draft System Specification Document3.2.12.2 System Timing[ANSR-SPEC-SR0161] The ANSR system ASTERIX timestamp must be within 50 milliseconds of antenna boresight for north mark and sector messages.If it is accepted to comply with the other requirements for the Service Volume without emploing a rotating antenna and therewith no defined boresight, is it possible to narrow this requirement down to rotating antennas?To increase effectiveness of the document by opening it up to non-rotating solutions, we recommend replacing this requirement by "If the ANSR system employs a rotating antenna, its ASTERIX timestamp must be within 50 milliseconds of antenna boresight for north mark and sector messages."CA non-rotating antenna solution will be considered, however the solution will still need to provide data to Automation System as if it were rotating.
12ATTACHMENT 3 - Draft System Specification Document3.2.12.2 System Timing[ANSR-SPEC-SR0162] The ANSR system ASTERIX timestamp must be within 50 milliseconds of antenna boresight of the detection cluster centroid for non-cooperative target messages.If it is accepted to comply with the other requirements for the Service Volume without emploing a rotating antenna and therewith no defined boresight, is it possible to narrow this requirement down to rotating antennas?To increase effectiveness of the document by opening it up to non-rotating solutions, we recommend replacing this requirement by "If the ANSR system employs a rotating antenna, its ASTERIX timestamp must be within 50 milliseconds of antenna boresight of the detection cluster centroid for non-cooperative target messages."CA non-rotating antenna solution will be considered, however the solution will still need to ensure accuracy of the timestamp in the ASTERIX Target Reports.
13Attachment 3 Draft SSD3.1.4.2 Merge ADS-B or WAM Cooperative Target with Non-Cooperative Target[ANSR-SPEC-SR0030] The ANSR system must be configurable to merge ADS-B OR WAM Cooperative Target with Non-Cooperative Target from a single aircraft into a single merged target report for the aircraft.In current ASTERIX Standards, including ASTERIX 34 & 48 referred in NAS-ICD_11013400 (analysis based on publicly available 2017 Draft Version 0.7), there is no description on how to codify a merged report based on ADS-B or WAM and Primary Radar. Is it the FAA's intention to use a modified ASTERIX specification to report such information or could the vendor define how to report the information in the SP field?SThe FAA is continuing to evolve these requirements and will be defining the User Application Profile (UAP) for a merged ADS-B or WAM with Primary radar at a later time.
14Attachment 3 Draft SSD3.2.6Merging Performance[ANSR-SPEC-SR0112] When a Cooperative Surveillance Radar systems provides asynchronous cooperative target reports via an external feed, the ANSR system must merge cooperative AND non-cooperative reports from the same aircraft into a single target report 98% of the time.Does the CSR system include ADS-B and CSR data feeds?
Is the CSR system co-mounted, located nearby (e.g. same airport) but with an independent rotation rate/phase, or arbitrarily located but with overlapping coverage?SThe CSR configuration is still under consideration by the FAA and vendors are encouraged to respond with solutions and recommendations.
15Attachment 3 Draft SSD3.1.5.4F5.4 Generate 6-Level Weather Reports[ANSR-SPEC-SR0043] The ANSR system must determine the movement of precipitation particulates based on reflected energy returns.Is this requirement only to detect the moving precipitation or does the FAA also require reporting information about the movement in the data (e.g. tracked storm centers)?SANSR will not be required to track storm centers.

ANSR will need to detect and present 6-level precipitation at any time.

16Attachment 3 Draft SSD3.1.5.4F5.4 Generate 6-Level Weather Reports[ANSR-SPEC-SR0044] The ANSR system must determine the quality of the received reflected energy returns to establish the likelihood of it being from precipitation.Does the FAA also require reporting weather detection quality in the ASTERIX Data?SNo, the only weather quality reporting required is the vector qualifier that uses weather levels.
17Attachment 3 Draft SSD3.5.1.1 Access Control[ANSR-SPEC-SR0262] The ANSR System must enforce passwords in accordance with FAA Order 1370.121B for Maintenance Personnel user group accounts. [IA-05EN01.d, IA-05EN01.e]Can the Government provide access to FAA Order 1370.121B?AThese documents will be provided as part of a future screening information request should FAA decide to solicit this requirement.
18Attachment 3 Draft SSD3.5.1.2 Audit and Accountability[ANSR-SPEC-SR0316] The ANSR System must send audit logging alerts from devices capable of generating audit logs to the NAS Cyber Monitoring System in accordance with the National Airspace System Cyber Management System (NCMS) to NAS System All Operating Systems IRD, NAS-IR-15014306. [AU-05EN02]Can the Government provide access to NAS-IR-15014306?AThese documents will be provided as part of a future screening information request should FAA decide to solicit this requirement.
19Attachment 3 Draft SSD3.5.1.4 Identification and Authentication[ANSR-SPEC-SR0328] The ANSR System must use the NAS Enterprise Security Gateway in accordance with FAA JO 1370.114 for connecting any non-NAS external source to the NAS domain. [IA-02EN01]Can the Government provide access to FAA JO 1370.114?AThese documents will be provided as part of a future screening information request should FAA decide to solicit this requirement.
20Attachment 3 Draft SSD3.4.1.1 Environmental Requirements[ANSR-SPEC-SR0177] The ANSR equipment located outdoors must operate in HOT Climatic Category with a Daily Cycle of HOT-DRY as defined in FAA-G-2100J, Electronic Equipment General Requirements, Paragraph 3.2.1.1.2e.Is the intent to only validate performance of outdoor equipment in HOT conditions, or should this be expanded to included expected COLD or SEVERE cold as defined in MIL-STD-810F?The ANSRS equipment located outdoors must operate in environmental conditions as defined in FAA-G-2100J, Electronic Equipment General Requirements, Paragraph 3.2.1.1.2e.SFAA is continuing to evolve these requirements. Please add comment to Attachment 6 in your response.
21Attachment 3 Draft SSD3.1.6 F6 Disseminate DataMultipleCan the Government provide access to NAS-ICD-11013400, January 14, 2022, Rev 1?AThese documents will be provided as part of a future screening information request should FAA decide to solicit this requirement.
22ANSR Request for InformationPage 5 of 7Page 5 of 7: " The vendor would provide the FAA with data feeds of the non-cooperative surveillance data, but the FAA would neither procure nor own the surveillance equipment. Surveillance equipment includes the shelter, tower and real estate."Will the Contractor be responsible for securing the land, access means, and necessary environmental and building permits required for the radar systems? Or will the FAA allow the Contractor to use the existing as-permitted land/access roads the ASR 8, 9, and 11s are built on?The procurement of the radar site (if relevant to the solution) and the environmental/building permitting, as well as transmission authorizations should be provided by the FAA.CThe vendor would be responsible for securing any and all land, leases, access means, and necessary environmental and building permits required for locations not on the air operations area (AoA). Please respond to Question 1.3 in Attachment 2 with any recommended changes to the FAA assumptions regarding the ANSR as a service model.
23ANSR Request for InformationPage 6 Submission InstructionsResponses to this RFI should be inserted in Attachment 1 and Attachment 2 and must be in PDF format in Times New Roman 12 Font. Total page count is limited to 100-pages for each complete response.Please clarify the 100 page count and what is defined in the 100 page count. Is it 100 pages for Attachment 1 and 100 pages for Attachment 2; or is it 100 pages for Attachment 1 and Attachment 2? Is the respondant allowed 100 pages for each solution?

To allow the most thorough and highest quality response, we recommend that the page count should be 100 pages for Attachment 1 and 100 pages for Attachment 2. Any product brochures or data sheets should be excluded from these page counts.

We also request that for figues and tables Times New Roman Font 9 (minimum) be allowed. A The respondent is allowed 100 pages for each solution.

There is a limit of 100 pages for Attachment 1 and a 100 pages limit for Attachment 2.

Figures and Tables must be in Times New Roman 12 Font 24 ANSR Request for Information Pages 4, 5 For the purposes of this RFI, the FAA seeks input on the above-mentioned approaches.

However, this does not preclude the submittal of information on other possible acquisition strategy alternatives.

The FAA is considering procuring ANSR as a service. In this approach, the FAA would

procure only non-cooperative surveillance radar data.There are multiple potential variations on "Surveillance-as-a-Service"? How would the FAA like industry to address these in their responses? Within a single Attachment 6 response, multiple Attachment 6 responses, or separate discussion?Recommend that the FAA allow for a separate discussion on potential "Surveillance-as-a-Service" variations.SPlease respond for any potential variations within a single response for Attachment 1 and Attachment 2 and observe the 100-page limit for each of these attachments. Comments on the system specification in Attachment 6 should be limited to the current specification as given in Attachment 3.
25ATTACHMENT 3 - Draft System Specification DocumentPage 7 of 43FAA-G-2100J: Electronic Equipment General Requirements, May 9, 2005In the reference document section, the document titled FAA-G-2100J has the following description: "Electronic Equipment General Requirements, May 9, 2005." The FAA-G-2100 revision that was released on May 9, 2005 is FAA-G-2100H. Please clarify the description.Recommend the text state: Electronic Equipment General Requirements, April 19, 2022AThe correct citation is FAA-G-2100J "Electronic Equipment, General Requirements, April 19, 2022." Please add comment to Attachment 6 in your response.
26ANSR Request for InformationPage 5 Non-cooperative Surveillance as a Service AcquisitionThe respondent would provide non-cooperative surveillance data over its own telecommunications infrastructure to Service Delivery Points (SDPs) at the FAA
network.What assumptions does the FAA want to make regarding locations and number of SDPs?Recommend providing a notional list of SDPs for industry to use.
SAt this time, vendors should assume the service delivery points (SDPs) will be located at terminal radar approach controls (TRACONs) and air route traffic control centers (ARTCCs).
27ANSR Request for InformationBackground, Page 3 Para 1…..and will need technology upgrades or replacement by 2035.Are the the legacy ASR 8/9/11 systems expected to operate and be supportable until 2035?SYes. The FAA plans to operate and sustain the legacy ASR systems until 2035. The FAA continues to evaluate the timeline for how long the legacy ASR systems need to remain operational.
28ANSR Request for InformationBackground, Page 3 Para 3The ANSR program includes precipitation weather requirements until TPOG is demonstrated and fielded.What is the FAA expected timeline for transition to TPOG?SThe FAA expects TPOG to be deployed prior to ANSR.
29ANSR Request for InformationNon-cooperative Surveillance as a Government Owned/Government Operated Acquisition (see Attachment 1), Page 4In this approach, the FAA would procure non-cooperative surveillance radar data from a vendor and own,operate, and maintain the associated equipment.Please clarify if the FAA would procure non-cooperative surveillance radar data or non-cooperative surveillance radar systems from a vendor.AAs this is for the Government Owned/Government Operated approach, the FAA would procure non-cooperative surveillance radar systems from the vendor
30ANSR Request for InformationNon-cooperative Surveillance as a Service Acquisition (see Attachment 2), Page 5…..but the FAA would neither procure nor own the surveillance equipment. Surveillance equipment includes the shelter, tower and real estate.Please confirm if the shelter, tower and real estate for existing non-cooperative radars will be made available to the vendor for use if needed.SThe vendor would be responsible for securing any and all land, leases, access means, and necessary environmental and building permits required for locations not on the air operations area (AoA). Please respond to Question 1.3 in Attachment 2 with any recommended changes to the FAA assumptions regarding the ANSR as a service model.
31ANSR Request for InformationSUBMISSION INSTRUCTIONS, Page 7 Para 1Responses may be separated from the table but ensure each response is properly referenced to its associated question.Please clarify which "table" is referenced in the text.AResponses should be contained within Attachments 1 & 2 and answers must be given with their associated questions. There is no table in these attachments; the word "table" is an artifact and has been removed.
32ANSR Request for InformationSUBMISSION INSTRUCTIONS, Page 7 Para 3Any proprietary or confidential information contained in the RFI submissions must be appropriately marked, per respondent’s policy.Please confirm if respondent information submitted in Attachment 6 (ANSR System Specification Comment Matrix) can be marked as respondent proprietary / confidential information.AYes, any proprietary or confidential information in a response to this RFI, including attachments to the RFI, should be marked as such per the respondent's policy.
33ATTACHMENT 1Question 3.2Please describe how your product could meet requirements should the frequency band shrink from 2700—2900 MHz to a narrower operating bandwidth, for example, 2700—2800 MHz, or some other limits.What is the narrowest operating bandwidth under consideration by the FAA?SA bandwidth limitation has not been determined as yet. Respondents should provide their approach for their existing solutions.
34ATTACHMENT 3N/AN/APlease provide requirements for antenna, shelter and tower, as they are not identified in ATTACHMENT 3.SAt this time, the FAA is still developing these requirements. Respondents should discuss their current product offerings/capabilities for antennas, shelters and towers.
35ATTACHMENT 3Figure 1-2 – ANSR Context Diagram (Page 4)
Section 3.1.7.1.2 ANSR-SPEC-SR0067, ANSR-SPEC-SR0068 (Page 13)Please clarify the functions and requirements for the Radar, Local and Remote Control Panels.CAt this time, the FAA is still developing these requirements. Respondents should discuss their current product offerings/capabilities for Local and Remote Control Panels.
36ATTACHMENT 3Section 3.1.3.1 ANSR-SPEC-SR0027 (Page 10)

Section 3.1.3.1 ANSR-SPEC-SR0028 (Page 11)

Section 3.1.4.2 ANSR-SPEC-SR0030 (Page 11)Please clarify if both ADS-B and WAM input capability are needed for ANSR or just one of the two. If both ADS-B and WAM input capability are needed, are they both needed simultaneously for a given site?CThe availability of WAM/ADS-B will be site dependent and will either be one or the other but not both.
37ATTACHMENT 3Section 3.4.1.3.1 ANSR-SPEC-SR0212 (Page 24)Please provide FAA Order JO 6950.22A, “Maintenance of Electrical Power Cables”.SThese documents will be provided as part of a future screening information request should FAA decide to solicit this requirement.
38ATTACHMENT 3Section 3.4.2.3 ANSR-SPEC-SR0222 (Page 25)Please provde FAA Order 6050.19G, “Radio Spectrum Planning”.SThese documents will be provided as part of a future screening information request should FAA decide to solicit this requirement.
39ATTACHMENT 3Section 3.4.5 ANSRS-SPEC- SR0243 (Page 26)Please provide FAA Order 3900.67, “Air Traffic Organization Hazardous Energy Control (Lockout/Tagout) Program”.SThese documents will be provided as part of a future screening information request should FAA decide to solicit this requirement.
40ATTACHMENT 3Section 3.1.7.1.2 ANSR-SPEC-SR0071, ANSR-SPEC-SR0072, ANSR-SPEC-SR0073 (Pages 13-14)Please clarify the expected interface with the RMLS. The document “Maintenance Management Information Exchange Model (MMIXM)”, v3.0.0 referenced in ANSR-SPEC-0072 and ANSR-SPEC-SR0073 is not an ICD or an IRD that defines physical and functional design characteristics.CAt this time, the FAA is still developing these requirements.
41ATTACHMENT 3Section 3.3 ANSR-SPEC-SR0168, ANSR-SPEC-SR0171, ANSR-SPEC-SR0172 (Page 21)What are to be considered as “legacy components” as described in requirements ANSR-SPEC-SR0168, ANSR-SPEC-SR0171, and ANSR-SPEC-SR0172?
SLegacy components would include any existing shelter, antenna, tower, colocated cooperative surveillance radar, power, environmental, and telco that are not provided by the vendor.
42ATTACHMENT 3APPENDIX B - GLOSSARY (Pages 39-41)Please clarify if the term “FAA SEM” used in the glossary represents an applicable required standard. If so, please provide it.
AFAA SEM is the FAA Systems Engineering Manual.

It does not represent a required standard, but just a citation for where the definition came from. It will be provided as part of a future screening information request should FAA decide to solicit this requirement.

43 ATTACHMENT 3 ANSR-SPEC-SR0225, ANSR-SPEC-SR0290 to ANSR-SPEC-SR0298 Please confirm if ANSR-SPEC-SR0225, and ANSR-SPEC-SR0290 to ANSR-SPEC-SR0298 are part of ATTACHMENT 3, as they do not exist currently in the document. A These numbers are not in the current system spec. The FAA will renumber the requirements as the specification is further developed.

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