Attachment 3 - Minimum Viable Product (MVP) Matrix - 101725.xlsx
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- Establishment of Radar System Replacement (RSR) Qualified System List (QSL) Federal contract opportunity
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About this file
This document is a Minimum Viable Product (MVP) Matrix detailing 139 specific technical requirements for the Radar System Replacement (RSR) Non-Cooperative Surveillance Radar (NCSR) and Cooperative Surveillance Radar (CSR) systems. The requirements encompass a comprehensive range of performance specifications including radar system operation, antenna compatibility, target detection, weather reporting, frequency characteristics, interrogation protocols, and system reliability metrics.
Key technical specifications include operational requirements such as detecting aircraft types with Radar Cross-Sections from 1-10,000 square meters, operating in various NAS environments, processing up to 700 real aircraft targets, maintaining high probabilities of detection (80-99% depending on target type), and achieving stringent reliability standards like an Inherent Availability greater than 0.9998. The system must interface with legacy terminal and en route radar systems, operate across specific frequency ranges (2700-2900 MHz), support multiple interrogation modes (ATCRBS, Mode S, Military Mode 2), and meet strict performance requirements for target tracking, false target reduction, and signal processing under various environmental conditions.
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Other files for this federal contract opportunity
| File | Type | Posted |
|---|---|---|
| Attachment 5 - RSR QSL Questions and Answers_10.28.2025.pdf | ||
| Attachment 2 - RSR System Specification Document - 101725.pdf | ||
| Attachment 4 - QSL PRICING WORKBOOK 10172025.xlsx | XLSX spreadsheet | |
| Attachment 1 - RSR Performance Work Statement - 101725.pdf |
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Text version
RSR MVP Requirements
PRODUCT:
| ID | MINIMUM VIABLE PRODUCT (MVP) REQUIREMENT | MEETS REQUIREMENT | |
| (Y/N) | EXPLANATION OF HOW PRODUCT MEETS THE REQUIREMENT | SUPPORTING DOCUMENTATION REFERENCES (TDIA) | EXPLANATION OF WHY PRODUCT DOES NOT MEET THE REQUIREMENT |
| 1 | [RSR-SPEC-SR0003] The RSR-NCSR system must operate with the legacy terminal ASR-8 non-cooperative surveillance antenna. [MVP] | ||
| 2 | [RSR-SPEC-SR0004] The RSR-NCSR system must operate with the legacy terminal ASR-9 non-cooperative surveillance antenna. [MVP] | ||
| 3 | [RSR-SPEC-SR0005] The RSR-NCSR system must operate with the legacy terminal ASR-11 non-cooperative surveillance antenna. [MVP] | ||
| 4 | [RSR-SPEC-SR0019] The RSR-NCSR system must operate in the NAS clutter environments. [MVP] | ||
| 5 | [RSR-SPEC-SR0026] The RSR-NCSR system must provide weather coverage throughout the Service Volume. [MVP] | ||
| 6 | [RSR-SPEC-SR0034] The RSR-NCSR system must filter returns that are from Non-Weather Sources. [MVP] | ||
| 7 | [RSR-SPEC-SR0041] The RSR-CSR must operate with the legacy terminal secondary surveillance antenna in accordance with FAA-E-2660. [MVP] | ||
| 8 | [RSR-SPEC-SR0042] The RSR-CSR must operate with the front looking array of the legacy en route secondary surveillance antenna in accordance with FAA-E-2751. [MVP] | ||
| 9 | [RSR-SPEC-SR0043] The RSR-CSR must operate with the legacy 6’ High Gain Open Planar Array Secondary Surveillance Antenna Model Number 1325-32 in accordance with COMSAT RSI Technical Products Instruction Book 1003-006. [MVP] | ||
| 10 | [RSR-SPEC-SR0057] The RSR-CSR supermode interlace period must combine a Mode S All-Call interrogation with either Mode 3/A, Mode C, OR Military Mode 2. [MVP] | ||
| 11 | [RSR-SPEC-SR0063] The RSR-CSR Pulse Repetition Frequency pseudo random stagger limits for ATCRBS/All-Call interrogations must be site adaptable from 0% up to 10% in 0.5% minimum increments. [MVP] | ||
| 12 | [RSR-SPEC-SR0064] The RSR-CSR Pulse Repetition Frequency stagger must be site adaptable as fixed sequence OR pseudo random stagger. [MVP] | ||
| 13 | [RSR-SPEC-SR0065] The RSR-CSR must interrogate Military Mode 2 transponders in accordance with DoD AIMS 03-1000B Section 4.2.1. [MVP] | ||
| 14 | [RSR-SPEC-SR0082] Upon detection of a Resolution Advisory Report, the RSR-CSR must interrogate Mode S transponders with a request for downlink of the Resolution Advisory Report as defined in RTCA/DO-181E Section 2.2.22.1.2.1.1. [MVP] | ||
| 15 | [RSR-SPEC-SR0087] The RSR-CSR must be site adaptable to interrogate Mode S transponders for Ground Initiated Comm B registers. [MVP] | ||
| 16 | [RSR-SPEC-SR0098] The RSR-CSR must | ||
| 17 | transmit ATCRBS Interrogator Side Lobe Suppression P2 pulses in accordance with ICAO Annex 10 Volume IV Section 3.1.1.4. [MVP] | ||
| 18 | [RSR-SPEC-SR0118] The RSR-CSR must process Military Mode 2 replies in accordance with DoD AIMS 03-1000B Section 4.5.1. [MVP] | ||
| 19 | [RSR-SPEC-SR0160] The RSR-CSR must merge Mode S AND ATCRBS Reports from the same aircraft into a single Mode S Report. [MVP] | ||
| 20 | [RSR-SPEC-SR0187] The RSR must operate with the beacon only radar azimuth encoder per the NAS-IC-34203403 Interface Control Document for the Mode Select Beacon System (Mode S) to Azimuth Pulse Generator (APG) Units. [MVP] | ||
| 21 | [RSR-SPEC-SR0188] The RSR must operate with the ASR-9 terminal radar azimuth encoder per the NAS-IC-34203403 Interface Control Document for the Mode Select Beacon System (Mode S) to Azimuth Pulse Generator (APG) Units. [MVP] | ||
| 22 | [RSR-SPEC-SR0189] The RSR must operate with the CARSR en route radar azimuth encoder per the NAS-IC-34203403 Interface Control Document for the Mode Select Beacon System (Mode S) to Azimuth Pulse Generator (APG) Units. [MVP] | ||
| 23 | [RSR-SPEC-SR0190] The RSR must operate with the ASR-8 terminal radar azimuth encoder per the NAS-IC-34203403 Interface Control Document for the Mode Select Beacon System (Mode S) to Azimuth Pulse Generator (APG) Units. [MVP] | ||
| 24 | [RSR-SPEC-SR0191] The RSR must operate with the ASR-11 terminal radar azimuth encoder. [MVP] | ||
| 25 | [RSR-SPEC-SR0192] The RSR must have dual redundant interfaces to the Azimuth Pulse Generator source in accordance with NAS-IC-34203403 Interface Control Document for the Mode Select Beacon System (Mode S) to Azimuth Pulse Generator (APG) Units. [MVP] | ||
| 26 | [RSR-SPEC-SR0209] The RSR tracker function must use ADS-B Reports for cooperative target acquisition. [MVP] | ||
| 27 | [RSR-SPEC-SR0229] The RSR System must interface with Automation Systems in accordance with “Surveillance to ATC Automation System All Purpose Structured Eurocontrol Surveillance Information Exchange (ASTERIX) Interface Requirements Document (IRD)”, NAS-IRD-11013400. [MVP] | ||
| 28 | [RSR-SPEC-SR0253] Each RSR surveillance user must be site adaptable to enable OR disable the output of coasted tracks when configured to output Track Target Reports. [MVP] | ||
| 29 | [RSR-SPEC-SR0254] The RSR-CSR must prohibit output of Beacon Target Reports derived in any part from ADS‑B Messages. [MVP] | ||
| 30 | [RSR-SPEC-SR0255] The RSR-CSR must prohibit output of Beacon Target Reports derived from radio frequency Built in Test test targets. [MVP] | ||
| 31 | [RSR-SPEC-SR0290] The RSR Maintenance Terminal at the radar site must allow the user to control RSR system operation. [MVP] | ||
| 32 | [RSR-SPEC-SR0291] The RSR Maintenance Terminal at the radar site must allow the user to monitor the colocated RSR. [MVP] | ||
| 33 | [RSR-SPEC-SR0401] The RSR must monitor the integrity of the azimuth encoders. [MVP] | ||
| 34 | [RSR-SPEC-SR0402] The RSR must automatically disable radio frequency transmissions upon detection of a failure in both azimuth encoders. [MVP] | ||
| 35 | [RSR-SPEC-SR0403] The RSR must disable radio frequency transmission while the system state is offline. [MVP] | ||
| 36 | [RSR-SPEC-SR0523] The RSR-CSR must achieve the performance requirements of Section 3.2, including all subsections of 3.2, under all target loading conditions up to the maximum target capacity specified in Section 3.2.13.2 (including 3.2.13.3 and 3.2.13.4 as subsections) AND in the presence of a steady state environment of up to 17,000 ATCRBS, 7,800 Short Mode S, AND 4,200 Long Mode S False Replies Unsynchronized In Time per second, of which 10 percent are in the main beam. [MVP] | ||
| 37 | [RSR-SPEC-SR0524] The RSR-CSR must achieve the performance requirements of Section 3.2, including all subsections of 3.2, with the amplitude of False Replies Unsynchronized In Time having a uniform random distribution between -20dBm and -79dBm, relative to the input of the Radio Frequency Port. [MVP] | ||
| 38 | [RSR-SPEC-SR0525] The RSR-NCSR system must detect Aircraft Types AND weather for a Service Volume defined by a slant range between 0 and 60 nautical miles at scan/refresh rates between 10 and 13 Revolutions Per Minute [MVP] | ||
| 39 | [RSR-SPEC-SR0526] The RSR-NCSR system must detect Aircraft Types AND weather for the Service Volume defined by an azimuth of 360 degrees. [MVP] | ||
| 40 | [RSR-SPEC-SR0527] The RSR-NCSR system must detect Aircraft Types AND weather for the Service Volume defined by a target altitude ceiling of at least 24,000 feet above mean sea level as limited by the slant range. [MVP] | ||
| 41 | [RSR-SPEC-SR0528] The RSR-NCSR System must detect Aircraft Types AND weather for the Service Volume defined by a slant range between 0 and 60 nautical miles on the peak of the beam. [MVP] | ||
| 42 | [RSR-SPEC-SR0529] The RSR-NCSR System must detect Aircraft Types AND weather for the Service Volume defined by an elevation from the local radar antenna horizon as determined by the earth’s curvature, atmospheric refraction, AND as further limited by the terrain screening, to 30 degrees with respect to the horizontal plane at the radar antenna. [MVP] | ||
| 43 | [RSR-SPEC-SR0532] The RSR-CSR must provide surveillance coverage for the Coverage Volume defined by an elevation from the local radar antenna horizon as determined by the earth’s curvature, atmospheric refraction, AND as further limited by the terrain screening, to 40 degrees with respect to the horizontal plane at the radar antenna. [MVP] | ||
| 44 | [RSR-SPEC-SR0533] The RSR-CSR must provide terminal surveillance coverage for the Coverage Volume defined by a slant range between 0 and 120 nautical miles. [MVP] | ||
| 45 | [RSR-SPEC-SR0534] The RSR-CSR terminal surveillance coverage must be site adaptable to operate at any scan rate between 10 and 15 Revolutions Per Minute. [MVP] | ||
| 46 | [RSR-SPEC-SR0535] The RSR-CSR must provide en route surveillance coverage for the Coverage Volume defined by a slant range between 0.5 and 256 nautical miles. [MVP] | ||
| 47 | [RSR-SPEC-SR0536] The RSR-CSR en route surveillance coverage must be site adaptable to operate at any scan rate between five and seven Revolutions Per Minute. [MVP] | ||
| 48 | [RSR-SPEC-SR0537] The RSR-CSR must provide surveillance coverage for the Coverage Volume defined by an azimuth of 360 degrees. [MVP] | ||
| 49 | [RSR-SPEC-SR0538] The RSR-CSR must provide surveillance coverage for the Coverage Volume defined by a slant range between 0.5 and 240 nautical miles at any scan rate between 10 and 13 Revolutions Per Minute for a terminal target capacity. [MVP] | ||
| 50 | [RSR-SPEC-SR0539] The RSR-NCSR system must detect Aircraft Types with a Radar Cross-Section from 1 square meter to 10,000 square meters with a ground speed between 25 to 700 knots. [MVP] | ||
| 51 | [RSR-SPEC-SR0540] In the clear, the RSR-NCSR system must detect a 1-m2 Swerling 1 target anywhere within the coverage volume with a single scan probability of detection (Pd) greater than or equal to 0.80 at a probability of false alarm (PFA) of 10-6. [MVP] [CPR #14] | ||
| 52 | [RSR-SPEC-SR0541] The RSR-NCSR system must provide subclutter visibility (SCV) of 42dB or greater at range between 0.5 and 60 nautical miles AND at Doppler velocities between 25 and 700 knots. [MVP] | ||
| 53 | [RSR-SPEC-SR0542] The RSR-NCSR Probability of Detection (Pd) must be greater or equal to 80% for every 1-m2 or larger aircraft within the coverage volume. [MVP] | ||
| 54 | [RSR-SPEC-SR0547] The RSR-NCSR system must generate an internally injected RF Real-Time Quality Control (RTQC) target once per scan. [MVP] | ||
| 55 | [RSR-SPEC-SR0548] The RSR-NCSR system must output the Real-Time Quality Control (RTQC) target once per scan. [MVP] | ||
| 56 | [RSR-SPEC-SR0549] The RSR-NCSR RTQC range position must be adjustable to anywhere within the Service Volume. [MVP] | ||
| 57 | [RSR-SPEC-SR0550] The RSR-NCSR RTQC azimuth position must be adjustable to anywhere within the Service Volume. [MVP] | ||
| 58 | [RSR-SPEC-SR0551] The RSR-NCSR system must pass the uncorrelated RTQC target through the track process AND output a correlated RTQC message once per scan. [MVP] | ||
| 59 | [RSR-SPEC-SR0552] The RSR-NCSR RTQC target message must include an RTQC identifier. [MVP] | ||
| 60 | [RSR-SPEC-SR0553] The RSR-CSR Probability of Detection must be greater or equal to 99% for all Mode S transponder-equipped targets within the Coverage Volume. [MVP] [CPR #12] | ||
| 61 | [RSR-SPEC-SR0554] The RSR-CSR Probability of Detection must be greater or equal to 98% for all ATCRBS transponder-equipped targets within the Coverage Volume. [MVP] [CPR #13] | ||
| 62 | [RSR-SPEC-SR0555] The RSR-CSR Probability of Detection must be greater or equal to 97% for all Mode S transponder-equipped targets with duplicate ICAO addresses within the Coverage Volume. [MVP] | ||
| 63 | [RSR-SPEC-SR0562] The total of ATCRBS false target reports disseminated by the RSR-CSR must be less than or equal to one for every 1000 real ATCRBS Target Reports disseminated. [MVP] [CPR #15] | ||
| 64 | [RSR-SPEC-SR0563] The total of Mode S false targets reports disseminated by the RSR-CSR must be less than or equal to one for every 25,000 real Mode S Target Reports disseminated. [MVP] [CPR #16] | ||
| 65 | [RSR-SPEC-SR0564] The RSR-NCSR system must report no more than 100 false non-cooperative plots per scan for three consecutive scans in every clutter conditions. [MVP] [CPR #17] | ||
| 66 | [RSR-SPEC-SR0565] The RSR-NCSR system must report no more than 10 false non-cooperative tracks per scan averaged over a 1-hour period, under every clutter conditions. [MVP] [CPR #18] | ||
| 67 | [RSR-SPEC-SR0568] The RSR-NCSR system must report aircraft range position with an error less than 275 feet root mean square (RMS), including bias. [MVP] [CPR #23] | ||
| 68 | [RSR-SPEC-SR0569] The RSR-NCSR system must report aircraft azimuth position with an error less than or equal to 0.16 degrees root mean square (RMS), including bias. [MVP] [CPR #24] | ||
| 69 | [RSR-SPEC-SR0570] The RSR-NCSR system must report the aircraft range position with a precision less than or equal to 1/256 nmi. [MVP] | ||
| 70 | [RSR-SPEC-SR0571] The RSR-NCSR system must report the aircraft azimuth position with a precision less than or equal to 0.0055 degrees. [MVP] [CPR #25] | ||
| 71 | [RSR-SPEC-SR0572] The RSR-CSR radar-only range bias errors, measured utilizing Beacon Target Reports, must be within ±30 feet. [MVP] [CPR #19] | ||
| 72 | [RSR-SPEC-SR0573] The RSR-CSR radar-only standard deviation of range errors must be less than 25 feet. [MVP] [CPR #20] | ||
| 73 | [RSR-SPEC-SR0574] The RSR-CSR azimuth bias must be within ±0.033 degrees over all elevation angles. [MVP] [CPR #21] | ||
| 74 | [RSR-SPEC-SR0575] The RSR-CSR azimuth jitter standard deviation for all elevation angles must be less than 0.066 degrees. [MVP] [CPR #22] | ||
| 75 | [RSR-SPEC-SR0576] When returns are detected from two Swerling 1 targets, separated in azimuth by 2.8 degrees, within < 1/8 nmi in range, with the same or different radial velocities and located at any point in the Service Volume, the RSR-NCSR system must resolve the two targets and generate two unique target reports 80 percent of the time for any combination of Radar Cross Section (RCS) from 1 to 20-m2 provided that the larger target's RCS is not more than 8 dB greater than the smaller target's RCS. [MVP] [CPR #26] | ||
| 76 | [RSR-SPEC-SR0577] When returns are detected from two Swerling 1 targets, separated in range by at least 1/8 nmi, on the same azimuth, with the same or different radial velocities, and located at any point in the Service Volume, the RSR-NCSR system must resolve the two targets and generate two unique target reports 80 percent of the time for any combination of Radar Cross Section (RCS) from 1 to 20-m2 provided that the larger target's RCS is not more than 8 dB greater than the smaller target's RCS. [MVP] [CPR #27] | ||
| 77 | [RSR-SPEC-SR0578] The RSR-NCSR system must include a split identifier in the target message for non-cooperative targets derived from a split detection cluster. | ||
| 78 | [RSR-SPEC-SR0579] The total of split target reports disseminated by the RSR-NCSR system that do not originate from 2 aircraft must be less than 1.0 percent of target reports having an SNR greater than or equal to 20 dB. [MVP] | ||
| 79 | [RSR-SPEC-SR0580] The RSR-CSR must resolve a minimum of 98% of the time, two closely spaced ATCRBS equipped aircraft, with a uniform random distribution of target positions within a window described by a slant range separation less than 1.7 nautical miles and a simultaneous azimuth separation of less than 2.4 degrees and greater than 1.2 degrees. [MVP] [CPR #28] | ||
| 80 | [RSR-SPEC-SR0581] The RSR-CSR must resolve a minimum of 90% of the time, two closely spaced ATCRBS equipped aircraft, with a uniform random distribution of target positions within a window described by a slant range separation less than 1.7 nautical miles and a simultaneous azimuth separation of less than 1.2 degrees. [MVP] [CPR #29] | ||
| 81 | [RSR-SPEC-SR0582] The Mode 3/A code reported for each target detected within a uniform random distribution of target positions within a window described by a slant range separation less than 1.7 nautical miles and a simultaneous azimuth separation less than 2.4 degrees must be correct greater than 90% of the time. [MVP] | ||
| 82 | [RSR-SPEC-SR0583] The altitude reported for each target detected within a uniform random distribution of target positions within a window described by a slant range separation less than 1.7 nautical miles and a simultaneous azimuth separation less than 2.4 degrees must be correct greater than 90% of the time. [MVP] | ||
| 83 | [RSR-SPEC-SR0584] The RSR-CSR, when interrogating Mode S equipped aircraft with discrete interrogations, must resolve two Mode S equipped aircraft or one Mode S and an ATCRBS equipped aircraft greater than 99% of the time. [MVP] | ||
| 84 | [RSR-SPEC-SR0586] The RSR-CSR must interrogate Mode S transponder equipped aircraft with no more than three re-interrogations per target, per scan. [MVP] | ||
| 85 | [RSR-SPEC-SR0587] The RSR-CSR must be site adaptable to interrogate with Interrogation Identifier OR Surveillance Identifier codes. [MVP] | ||
| 86 | [RSR-SPEC-SR0595] The RSR-CSR must correctly decode at least four ATCRBS Simultaneous Replies. [MVP] | ||
| 87 | [RSR-SPEC-SR0596] For Non-Closely Spaced ATCRBS targets, the RSR-CSR must correctly report the Mode 3/A code greater than 99% of the time. [MVP] | ||
| 88 | [RSR-SPEC-SR0597] For Non-Closely Spaced ATCRBS targets, the RSR-CSR must validate Mode 3/A codes greater than 99% of the time when the beacon code is correct. [MVP] | ||
| 89 | [RSR-SPEC-SR0598] The RSR-CSR must correctly report the Mode 3/A code of Mode S targets greater than 99% of the time. [MVP] | ||
| 90 | [RSR-SPEC-SR0599] The RSR-CSR must validate Mode 3/A codes of Mode S targets greater than 99% of the time when the beacon code is correct. [MVP] | ||
| 91 | [RSR-SPEC-SR0600] The RSR-CSR must correctly report the Mode S identification greater than 99.9% of the time for Mode S targets. [MVP] | ||
| 92 | [RSR-SPEC-SR0601] For ATCRBS targets, the RSR-CSR must declare validation less than 1% of the time when disseminating incorrect Mode 3/A codes. [MVP] | ||
| 93 | [RSR-SPEC-SR0602] For Mode S targets, the RSR-CSR must declare validation less than 1% of the time when disseminating incorrect Mode 3/A codes. [MVP] | ||
| 94 | [RSR-SPEC-SR0603] For Non-Closely Spaced ATCRBS targets, the RSR-CSR must correctly report the ATCRBS target altitude greater than 99% of the time. [MVP] | ||
| 95 | [RSR-SPEC-SR0604] The RSR-CSR must correctly report the Mode S target altitude greater than 99% of the time. [MVP] | ||
| 96 | [RSR-SPEC-SR0605] For Non-Closely Spaced ATCRBS targets, the RSR-CSR must validate correctly reported ATCRBS altitudes greater than 95% of the time. [MVP] | ||
| 97 | [RSR-SPEC-SR0606] The RSR-CSR must validate correctly reported Mode S altitude greater than 99% of the time. [MVP] | ||
| 98 | [RSR-SPEC-SR0607] For Non-Closely Spaced ATCRBS targets, RSR-CSR validation of an incorrect altitude must occur less than 1% of the time. [MVP] | ||
| 99 | [RSR-SPEC-SR0608] The RSR-CSR validation of an incorrect Mode S altitude must occur less than 1% of the time. [MVP] | ||
| 100 | [RSR-SPEC-SR0609] When configured with a co-located with a cooperative surveillance system, the RSR system must merge cooperative AND non-cooperative reports from the same aircraft into a single target report 98% of the time. [MVP] [CPR #11] | ||
| 101 | [RSR-SPEC-SR0615] The RSR-NCSR system must report precipitation within the six reflectivity from 18 to 57 dBz levels defined by the National Weather Service. [MVP] | ||
| 102 | [RSR-SPEC-SR0617] The RSR-NCSR system must report the weather picture within 3 scans of completion under full target loading conditions. [MVP] | ||
| 103 | [RSR-SPEC-SR0619] The RSR-NCSR system must meet weather performance requirements while operating in either linear polarization OR circular polarization. [MVP] | ||
| 104 | [RSR-SPEC-SR0624] The RSR-NCSR system must transmit in the frequency range of 2700 to 2900 MHz. [MVP] | ||
| 105 | [RSR-SPEC-SR0625] The RSR-NCSR system must meet frequency bandwidth limits of +/- 1.9 MHz from assigned frequency at 3dB below peak frequency power, [MVP] | ||
| 106 | [RSR-SPEC-SR0626] The RSR-NCSR system must meet frequency bandwidth limits of +/- 7.0 MHz from assigned frequency at 40dB below peak frequency power. [MVP] | ||
| 107 | [RSR-SPEC-SR0627] The RSR-NCSR total system phase stability must be less than or equal to -55 dB relative to peak power throughout the Service Volume. [MVP] | ||
| 108 | [RSR-SPEC-SR0628] The RSR-NCSR 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. [MVP] | ||
| 109 | [RSR-SPEC-SR0630] The RSR-CSR effective Pulse Repetition Frequencies must be site adaptable over the range of 50 Hz to 400 Hz in maximum one Hz increments. [MVP] | ||
| 110 | [RSR-SPEC-SR0632] The radiated spectrum of any RSR-CSR ATCRBS interrogation must comply with ICAO Annex 10 Volume IV Section 3.1.2.1.2. [MVP] | ||
| 111 | [RSR-SPEC-SR0633] The radiated spectrum of any RSR-CSR Mode S interrogation must comply with ICAO Annex 10 Volume IV Section 3.1.2.1.2. [MVP] | ||
| 112 | [RSR-SPEC-SR0635] The RSR-CSR must use dynamic power adjustment for Mode S Roll-Call interrogations based on predicted range for the target. [MVP] | ||
| 113 | [RSR-SPEC-SR0636] The RSR-NCSR system must provide target processing capacity as defined by 700 real aircraft targets in any mix of non-cooperative only, merged, OR cooperative only targets, in the presence of an additional 300 false non-cooperative reports AND 100 false cooperative reports, uniformly OR non-uniformly distributed in azimuth for a 360 degree scan. [MVP] [CPR #10] | ||
| 114 | [RSR-SPEC-SR0646] The RSR-CSR Target Capacity must consist of any mix of Mode S AND ATCRBS targets. [MVP] | ||
| 115 | [RSR-SPEC-SR0659] The RSR-CSR must process 700 beacon targets within the terminal Coverage Volume per 360 degrees antenna scan. [MVP] [CPR #8] | ||
| 116 | [RSR-SPEC-SR0673] The RSR-CSR must process 1,400 beacon targets within the en route Coverage Volume per 360 degrees antenna scan. [MVP] [CPR #9] | ||
| 117 | [RSR-SPEC-SR0698] The RSR system must output Search Target Reports to the communication interface less than 0.80 seconds, measured from the target centroid, boresight antenna position. [MVP] [CPR #1] | ||
| 118 | [RSR-SPEC-SR0699] The RSR system must output Beacon/Search Target Reports to the communication interface less than 0.80 seconds, measured from the target centroid, boresight antenna position. [MVP] [CPR #2] | ||
| 119 | [RSR-SPEC-SR0700] The RSR system must output Beacon Target Reports to the communication interface less than 0.80 seconds, measured from the target centroid, boresight antenna position. [MVP] [CPR #3] | ||
| 120 | [RSR-SPEC-SR0701] The RSR system must output Search-only Track Target Reports to the communication interface less than 1.3 seconds, measured from the target centroid, boresight antenna position. [MVP] [CPR #4] | ||
| 121 | [RSR-SPEC-SR0714] The RSR-CSR transmitter must be able to operate at duty cycles of at least 4% over a 360-degree scan. [MVP] | ||
| 122 | [RSR-SPEC-SR0726] The RSR-CSR Sigma Channel transmitted peak power measured at the Radio Frequency Port must be site adaptable in increments of 0.5 dB or less between 17 dBW and 32 dBW. [MVP] | ||
| 123 | [RSR-SPEC-SR0727] The RSR-CSR Omega Channel transmitted peak power measured at the Radio Frequency Port must be site adaptable in increments of 0.5 dB or less between 17 dBW and 32 dBW. [MVP] | ||
| 124 | [RSR-SPEC-SR0733] The RSR-CSR must accurately decode replies in the presence of continuous wave interference when the received signal strength of the reply is at least 12 dB greater than that of the interference. [MVP] | ||
| 125 | [RSR-SPEC-SR0770] The RSR preventive maintenance activities must occur less than or equal to 4 times per year. [MVP] | ||
| 126 | [RSR-SPEC-SR0771] The RSR must have a total time to accomplish preventive maintenance activities of less than or equal to 32 staff hours per year, with 20 staff hours allocated to the RSR-NCSR and 12 staff hours allocated to the RSR-CSR. [MVP] | ||
| 127 | [RSR-SPEC-SR0772] The RSR preventive maintenance activities must require no more than one person to accomplish. [MVP] | ||
| 128 | [RSR-SPEC-SR0773] The RSR must complete a full software upgrade, including operating system upgrades, within 6 hours. [MVP] | ||
| 129 | [RSR-SPEC-SR0774] When redundant modules are incorporated into the RSR, normal system operation must be maintained during removal OR replacement of a redundant module. [MVP] | ||
| 130 | [RSR-SPEC-SR0776] The RSR system must have a Mean Time to Restore (MTTR) of less than 1 hour. [MVP] | ||
| 131 | [RSR-SPEC-SR0777] The RSR-NCSR OR RSR-CSR system must have a Mean Time to Restore Service (MTTRS) of less than 6 hours. [MVP] | ||
| 132 | [RSR-SPEC-SR0778] The RSR’ overall Inherent Availability must be greater than or equal to .9998 excluding Legacy Components. [MVP] [CPR #5] | ||
| 133 | [RSR-SPEC-SR0779] The RSR-NCSR system must have a minimum inherent availability (Ai) of 0.9998, excluding Legacy Components. [MVP] [CPR #6] | ||
| 134 | [RSR-SPEC-SR0780] The RSR-NCSR system must have a Mean Time Between Critical Failures (MTBCF) of greater than 5000 hours. [MVP] | ||
| 135 | [RSR-SPEC-SR0781] The RSR-CSR overall Inherent Availability must be greater than or equal to .99995 excluding Legacy Components. [MVP] [CPR #7] | ||
| 136 | [RSR-SPEC-SR0782] The RSR-CSR must have a Mean Time Between Critical Failure greater than or equal to 50,000 hours. [MVP] | ||
| 137 | [RSR-SPEC-SR0783] The RSR must include Built-In Test functions to detect faults. [MVP] | ||
| 138 | [RSR-SPEC-SR0784] The RSR must implement Fault Isolation Test functionality to isolate faults detected by Built in Test to the Line Replaceable Unit level. [MVP] | ||
| 139 | [RSR-SPEC-SR0832] The RSR system load power characteristics must comply with FAA-G-2100J, Electronic Equipment, General Requirements, Paragraph 3.1.1.2. [MVP] | ||
| 140 | [RSR-SPEC-SR0833] The RSR equipment must operate with the input power conditions defined in FAA-G-2100J, Electronic Equipment, General Requirements, Paragraph 3.1.1.6. [MVP] | ||
| 141 | [RSR-SPEC-SR0834] The RSR system circuit overload protection must be in accordance with FAA-G-2100J, Electronic Equipment, General Requirements, Paragraph 3.1.1.5. [MVP] | ||
| 142 | [RSR-SPEC-SR0835] The RSR system electrical load power harmonics characteristics must be in accordance with FAA-G-2100J, Electronic Equipment, General Requirements, Paragraph 3.1.1.2. [MVP] | ||
| 143 | [RSR-SPEC-SR0837] The RSR system electrical load balance must comply with FAA-G-2100J, Electronic Equipment, General Requirements, Paragraph 3.1.1.4. [MVP] | ||
| 144 | [RSR-SPEC-SR0839] The RSR system electrical power measurements must be taken in accordance with FAA-G-2100J, Electronic Equipment, General Requirements, Paragraph 3.1.1.2. [MVP] | ||
| 145 | [RSR-SPEC-SR0879] The RSR operating system must use cryptographic modules that are validated under the NIST Cryptographic Module Validation Program (C[MVP]) and listed as compliant with FIPS 140-3. |
Glossary
| Term | Definition |
| Access Control List | As defined in NIST SP 800-12, a register of: |
| 1. users (including groups, machines, processes) who have been given permission to use a system resource, and | |
| 2. the types of access they have been permitted. | |
| Adjacent Sensor | A RSR-CSR located geographically separate and configured into a cluster of connected sensors for network-aided operations using EUROCONTROL Surveillance Coordination Network standards. |
| ADS-B Message | Target information broadcast by transponders using the 1090 MHz Extended Squitter (ES) data link, per the format defined in the Minimum Operational Performance Standards (MOPS) document RTCA/DO-260B as received on a radio frequency link. |
| ADS-B Report | A 1090 ES message which has been received and formatted per the RSR-CSR internal data structure. |
| Aircraft Types | The following are types of aircraft to be detected: |
| General Aviation | |
| Rotorcraft flying above min ground speed | |
| Small single engine fixed wing | |
| Turboprop | |
| Commercial and air cargo | |
| DoD aircraft intended to receive non-cooperative based ATC services | |
| Alarm | An alarm is generated in response to a transition event indicating that a critical parameter has exceeded established operational limits, a critical condition or status has changed to an invalid state, or the system is not meeting performance requirements. An alarm message is generated as soon as a determination is made that a performance parameter, status or condition is an alarm state, commonly referred to as a red condition. |
| Alert | An alert is generated in response to a transition event indicating that a performance parameter, condition or status has exceeded some predetermined threshold, or loss of redundancy, but is still within performance requirements. An alert message is generated as soon as a determination is made that a performance parameter, status or condition is an alert state, commonly referred to as a yellow condition. |
| Angels | False returns caused by atmospheric phenomena, birds, or insects |
| ATCRBS Reports | The RSR-CSR produces ATCRBS Reports from ATCRBS and Military Mode 2 replies (solicited from the RSR-CSR’s ATCRBS interrogations). ATCRBS Reports are formatted per the RSR-CSR internal data structure. |
| Automatic Recordings | A data recording that starts automatically on system start and continues through system events such as automatic reconfiguration and channel changes. |
| Automation Systems | Systems receiving Surveillance Data for supporting air traffic control, weather, monitoring, or any other FAA NAS process. This includes Standard Terminal Automation Replacement System (STARS), En Route Automation Modernization (ERAM), Advanced Technologies & Oceanic Procedures (ATOP) and Microprocessor En-Route Automated Radar Tracking System (MircoEARTS). |
| Beacon Reports | An internal data structure consisting of an ATCRBS Report or a Mode S Report. |
| Beacon Target Report | A dissemination message conveying information related to a Beacon Report containing only Secondary Surveillance Data. |
| Beacon/Search Target | An internal data structure consisting of an ATCRBS Report or a Mode S Report merged with a Search Report |
| Beacon/Search Target Report | A dissemination message conveying information resulting from the correlation of a Beacon Report and a Search Report. |
| Beam Dwell | The beam dwell is the time a target can be illuminated by the main beam per 360-degree antenna scan and is based upon the nominal Beamwidth and scan rate. The formula for Beam Dwell is: |
| Beam Dwell = (Beamwidth/360°)*(scan rate) | |
| Example: For a typical 4.8 second terminal scan rate with a 2.35°, the beam dwell is 0.0313 seconds | |
| Beamwidth | The number of degrees in azimuth measured between the -3dB points of the antenna main beam pattern. |
| Blanking | Blanking is the process by which interrogations are not performed for a sequence of azimuth values. |
| Boresight | The axis of maximum gain (maximum radiated power) of a directional antenna |
| Built-In Test | An automatic mechanism that enables the system to continually test itself in a non-disruptive manner. |
| Cabinet | Any enclosure or rack containing system equipment. |
| Call Sign | A group of alphanumeric characters used to identify an aircraft in air-ground communications. |
| Coast | The process of providing an estimated location of a radar return when a previously tracked target does not provide a report update for one or more scans |
| Cold Start | Starting the system from a full, power-off condition of all components |
| Configurable | Local parameters able to be modified or adjusted by the user for the configuration and optimization of the RSR |
| Commercial off-the-shelf (COTS) | A product or service developed for sale, lease, or license to the public. It is currently available at a fair market value. (FAA FAST) |
| Communications System | The system responsible for providing the interface between the Surveillance and Automation Systems. This includes both FTI and dedicated field cable. |
| Control Point | A system or subsystem from which the RSR can be accessed, monitored or controlled. The Control Points are limited to the. Maintenance Terminal(s), Air Traffic Terminal(s) and/or RMLS. |
| Correlated Target Reports | Beacon Reports associating to a track. |
| Critical Fault | A software or hardware issue which results in the RSR no longer satisfying the performance requirements in this spec |
| Critical Power | Facility-conditioned power bus that supports critical and essential air traffic control services. In the event of a power outage, critical loads are fed from uninterruptible power supplies until back-up power generators go on-line. |
| Degraded | A mode of operation in which alerts may be present and/or the system has a loss of redundancy. However, the system continues to meet all performance requirements. |
| Delta Channel | The phase difference antenna channel, also known as the Difference channel. Symbol: ∆. The Delta pattern in azimuth exhibits two pencil-beams symmetrically displaced about two degrees on either side of the Sigma Channel pattern peak. The Delta pattern has deep null that is aligned with the Sigma pattern peak. The Delta pattern is only used for receiving replies, and the phase of the Delta pattern relative to the Sigma pattern is used to estimate the monopulse azimuth angle of the target. |
| Electrical Safety | Recognizing hazards associated with the use of electrical energy and taking precautions so that hazards do not cause injury or death. (2004 NFPA 70E) |
| External System | An FAA system or equipment interfaced with RSR equipment. Examples include, but are not limited to, colocated primary radars, Automation systems, beacon antennas, azimuth encoders, RMLS. |
| False Target | A surveillance report (non-cooperative, cooperative or combined) which does not correspond to the actual position of a real aircraft or vehicle (target), within certain limits. A false target can include aircraft reflections, multipath, splits, ring around, and False Replies Unsynchronized in Time (FRUIT). Wind turbines, birds, bugs, Angels, weather, and other atmospheric phenomena, which may generate false targets, are typically considered clutter for ATM. |
| Filter Threshold | A value (e.g. a percentage, a count, or binary state) which defines a transition toward (or away from) the alarm/alert condition. Typically, the comparison of the current condition against the threshold limit is made once each antenna scan period. |
| Fire Life Safety | A written review dealing with the adequacy of life safety features relative to fire |
| Format | To arrange data into an organized structure. |
| Geographical North | North according to the Earth’s axis, not magnetic north. (aka. True North) |
| Improved Azimuth Change Pulses (IACP) | 16,384 serial pulses per complete antenna revolution. |
| Ingest | The process of receiving and processing data for the purpose of creating plots, tracks, weather reports and service reports |
| Inherent Availability (Ai) | A measure of the availability values that includes only the effects of an item design and its application and assumes an ideal operation and support environment. Ai=MTBCF/(MTBCF+MTTR). |
| Interrogation Data | Interrogation Data includes, as a minimum: |
| The type (i.e. Mode S All-Call, Mode S Roll-Call, ATCRBS Mode 3/A, ATCRBS Mode C, Military Mode 2) of each scheduled interrogation. | |
| Full content of scheduled Mode S interrogations. | |
| The aircraft address for scheduled Mode S interrogations. | |
| The power of transmitted interrogations on the Sigma channel. | |
| The power of transmitted interrogation SLS pulses on the Omega channel. | |
| The scheduled UTC time for transmission of scheduled interrogations, referenced to the range clock start trigger, with the same precision and accuracy required by the system’s ranging algorithm. | |
| The UTC time of transmission of transmitted interrogations, referenced to the range clock start trigger, with the same precision and accuracy required by the system’s ranging algorithm. | |
| Antenna Azimuth at time of transmission of transmitted interrogations. | |
| A test target indicator (identifies if interrogation occurred during a test target generation period). | |
| Re-try indicator (identifies if interrogation is a re-try) for scheduled and transmitted interrogations. | |
| Scheduled UTC start time of the corresponding listen window for transmitted interrogations. | |
| Scheduled UTC end time of the corresponding listen window for transmitted interrogations. | |
| A means of associating scheduled interrogation data to its corresponding transmitted interrogation data (e.g. generation of a single message containing both scheduled and transmitted data, if applicable, for each interrogation, assignment of interrogation numbers with sufficient granularity to preclude use of the same number within any single scan period, etc.) | |
| Intrusion Detection System | A device or software application that monitors a network or systems for malicious activity or policy violations. |
| Legacy Components | Government Furnished Equipment interfaced with RSR equipment. Examples include, but are not limited to, colocated secondary and primary antennas, azimuth encoders, RF cables. |
| Likelihood | The measure to determine if a signal is a member of the class of signals of interest. |
| Line Replaceable Unit | The lowest field-replaceable component of a system. |
| Local Control Interface | RSR maintenance terminal located within the radar shelter |
| Main Beam | Antenna lobe with the largest field strength of the antenna pattern and is utilized by the Sigma Channel of a monopulse radar system. |
| Maintenance and Control (M&C) Message | A communication that conveys data needed to implement local or remote control or monitoring of a system. Typically used to interconnect a system with a remote Maintenance Terminal or a remote operator terminal. |
| Maintenance Function | Functions required to maintain the system, and commanded by an operator using a Maintenance Terminal. |
| Material handling | The movement, protection, storage and control of materials and products throughout manufacturing, warehousing, distribution, consumption, and disposal. |
| Mean-Time-To-Restore (MTTR) | Mean Time to Restore is a basic measure of maintainability. It is the sum of corrective maintenance times (required at any specific level of repair) divided by the total number of failures experienced by an item that is prepared at that level, during a particular interval, and under stated conditions. |
| Mean Time to Restore Service (MTTRS) | The MTTRS is also an inherent measure of the design characteristics of complex systems. It represents the time needed to manually restore service following an unscheduled service failure requiring manual intervention. Like MTTR, it includes only unscheduled downtime and assumes an ideal support environment, but the MTTRS includes not only the time for hardware replacements, but also times for software reloading and system restart times. MTTRS does not include the time for the successful operation of automatic fault detection and recovery mechanisms that may be part of the system design. The performance specifications for the operation of automatic recovery mechanisms are addressed separately. |
| Mechanical Hazard | Sharp projections, unguarded moving parts, etc. that may injure personnel. |
| Message | A collection of data elements that convey an event or status over a communications medium. |
| Minimum Ground Speed | The minimum speed of flight at which the ASR can detect and distinguish an aircraft from ground clutter, usually defined as 25 knots |
| Monopulse | Denoting a system of radar in which the angular location of a target is determined by comparison of two or more simultaneously received signals. |
| Mode S Report | The RSR-CSR produces Mode S Reports from Mode S replies (solicited from the RSR-CSR’s Mode S interrogations). Mode S Reports are formatted per the RSR-CSR internal data structure. |
| Mode S Target | An aircraft equipped with a Mode S or 1090 ES ADS-B transponder which is compatible with secondary surveillance radar systems |
| RSR Output Port | The radio frequency connection for the radio frequency cabling at the antenna rotary joint. |
| NAS Systems | A classification defined in FAA JO 1370.114 – A system that operates in the NAS environment and has been designated as “NAS” in the ATO Information Systems Security (ISS) Program Authorization Inventory (based on performance of NAS functions as defined in NAS-RD-2010 and/or direct connectivity with the NAS Operational networking/computing environment). |
| Network Aided Report | ASTERIX Category 017 track data type messages exchanged with an adjacent sensor in a RSR-CSR cluster. |
| Non-Aircraft Sources | Sources include wind turbines, angels, birds, insects, precipitation, ground vehicles (including road, rail, and ship), ground and sea clutter, and RF interference (not to include intentional jamming) |
| Non-Closely Spaced Targets | Targets with a range separation greater than 1.7 nautical miles or an azimuth separation of greater than 2.4 degrees |
| Non-Weather Sources | Sources include moving clutter, wind turbines, anomalous propagation, or RF interference (not to include intentional jamming) |
| Non-Critical Fault | The loss of a redundant module or a failure that does not significantly affect the performance of the system |
| Non-NAS Systems | A classification defined in FAA JO262 1370.114 – Any system/network that is not designated as “NAS” in the ATO ISS Program Authorization Inventory (this includes Non-FAA systems/networks, Admin systems/networks, and Mission Support systems/networks). |
| Non-Volatile Memory | Data that is stored in non-volatile memory remains on the system after it is shut down |
| Omega Channel | The omnidirectional antenna channel, also known as the control, Omni, or SLS channel. Symbol: Ω. The Omega channel provides omnidirectional radiation in azimuth for side-lobe suppression (blanking). The Omega pattern has a null in the region of the Sigma main-beam to minimize main-beam kill by the SLS system. The Omega pattern is used for transmitting side-lobe suppression interrogations and for receiving side-lobe replies. |
| Operational effectiveness | The degree to which a product accomplishes its mission when used by representative personnel in the expected operational environment. |
| Overload Situation | Condition during which target load causes decreased system performance, outside of processing tolerances. |
| Permanent Echo | Radar signals reflected from fixed objects on the earth's surface, e.g., buildings, towers, terrain, used to check radar alignment. Permanent echoes are distinguished from ground clutter by being definable locations rather than large areas |
| Point of Demarcation | The point at which the RSR is physically connected to the Communications System. Additionally, the system boundary of responsibility, where data leaves the RSR (i.e. connection to primary radar, or other external interfaces). |
| Preventive Maintenance | The activities (adjustment, cleaning, replacement of consumables, etc.) that the RSR system supplier recommends be carried out on a periodic basis to maintain proper operation. |
| Processing Artifacts | Processing artifacts may include radio frequency returns, Doppler response, clutter maps, thresholding, target alarms or other vendor specific datums |
| Pulse Repetition Frequency | The number of Mode S and ATCRBS all-call pulse trains transmitted per second. Beacon systems radiate each pulse train during transmit time, wait for returning replies during the listening period, and then radiate the next pulse train. The time between the beginning of one pulse train and the start of the next pulse train is called pulse-repetition time (PRT) and is equal to the reciprocal of the Pulse Repetition Frequency (PRF). PRF is typically cited on the FAA Facility Transmitting Authorization as three numbers; ATCRBS PRF / Mode S PRF / Total PRF. |
| Quality | Signal characteristics such as positional accuracy, resolution, power level, Doppler, or others, used by the signal and data processing to determine signals of interest. |
| Quality assurance | A way of preventing mistakes or defects in manufactured products and avoiding problems when delivering solutions or services to customers. QA applies to physical products in pre-production to verify what will be made meets specifications and requirements, and during manufacturing production, runs by validating lot samples meet specified quality controls. QA is also applied to software to verify that features and functionality meet business objectives, and that code is relatively bug free prior to shipping or releasing new software products and versions. |
| Radar Control Panel | A user interface that allows operators to control and adjust how the RSR NCSR system works, such as setting the range, rotating the antenna, and checking the system's status. |
| Radio Frequency Port | The point of radio frequency demarcation connection at the RSR-CSR for 1030 MHz transmissions and 1090 MHz receptions. |
| Real Time Quality Control Target | An internal, injected, RF target used for monitoring in real time the quality of the sensor data as for confirming azimuth and range accuracy and for registration bias |
| Recorded Data Types | Information for recording that includes, but is not limited to the following: |
| Interrogation Data | |
| Reply Data | |
| ADS-B Reports | |
| Beacon Reports | |
| Search Reports received from a primary radar | |
| Service Messages received from a primary radar | |
| Weather Messages received from a primary radar | |
| Surveillance Data | |
| System Track Data | |
| ASTERIX Cat017 messages when configured for network aided distributed operation mode RMS Data | |
| M&C Messages | |
| Reflector | An object that causes false responses by acting as a mirror to RF Transmissions. The objects are usually man-made such as hangars, office buildings and chain-link fencing, but occasionally can be terrain. |
| Remote Control Interface | RSR maintenance terminal located away from the radar shelter, such as in the Terminal Radar Approach Control (TRACON) facility |
| Reply | Radio frequency signal sent from transponder avionics in response to radar interrogations |
| Reply Data | Reply Data includes, as a minimum: |
| Reply type (i.e. Mode S All-Call, Mode S Roll-Call, ATCRBS Mode 3/A, ATCRBS Mode C, Military Mode 2). | |
| Full content of the reply. | |
| Aircraft address associated with Mode S replies. | |
| UTC time of reply detection, referenced to the range clock stop trigger, with the same precision and accuracy required by the system’s ranging algorithm. | |
| Range of reply. | |
| Azimuth of antenna boresight at time of reply detection. | |
| Estimated monopulse off-boresight angle of reply. | |
| Power level of reply on the Sigma, Delta, and Omega channels. | |
| Validity indicator for estimated monopulse off-boresight angle. | |
| Reply length for Mode S replies. | |
| Parity error indicator for Mode S replies. | |
| Parity error correction failure indicator for Mode S replies. | |
| Garbled reply indicator. | |
| Confidence for each ATCRBS reply pulse. | |
| A test target indicator (identifies if reply is from a test target). | |
| Resiliency | Ability for the NAS to effectively prepare for and adapt to changing conditions and withstand and recover from deliberate attacks, accidents, and naturally occurring threats or incidents. Key principles for building resiliency into the NAS include redundancy, diversity, separation, transparency, response, and recovery. |
| Return to Normal | When an alert or alarm event is no longer present, commonly referred to as a green condition. |
| RF Blanking Zone | An RF blanking zone inhibits RF output of the transmitter while the antenna is pointed at that zone. |
| Scan Rate | The rotation period of the ground beacon antenna. |
| Schedule | The process by which interrogations are sequenced in time. |
| Search Target Report | A dissemination message conveying information related to an uncorrelated Search Report. |
| Second Time Around Returns | For a given pulse, a return from a target at a greater range than the radar’s instrumented range, caused by the radar receiving the return on the subsequent pulse. This return will be displayed at an incorrect range |
| Secure Configuration Baseline Standards | (1) NAS Operating System (OS) Configuration Baseline Standards (ATO ISS Program website), |
| (2) United States Government Configuration Baseline (USGCB), or | |
| (3) Center for Internet Security (CIS). | |
| Security Administrator | A user access group that has access privileges for local auditing and security controls and user account management. The Security Administrator is responsible for (1) ensuring the security features appropriate to the intended level of system operation are properly set; (2) ensuring audit software is properly configured; and (3) ensuring audit trail reports are periodically reviewed. (Reference FAA Order 1370.121B). The Security Administrator does not have System Administration privilege. |
| Sensitivity Time Control | A Sensitivity Time Control is a range varying receiver threshold value, utilized within a user defined azimuth wedge or applied over 360 degrees. |
| A Sensitivity Time Control is created with one or more user-defined range segments, which may contain additional site adaptable settings that compute the receiver detection threshold for each range cell within the segment. | |
| Service Messages | Messages received from a primary radar or generated by RSR, processed and sent to an Automation system, or returned to a CARSR, including, but not limited to, status messages, sector sync messages, search strobe messages, jamming strobe messages and CW interference messages. |
| Service Volume | Maximum range and altitude from the antenna for which a radar type is certified for use. For a terminal non-cooperative, this is normally defined as 60 nmi and 24,000’ AGL |
| Sigma Channel | The main-beam antenna channel, also known as the Sum channel. Symbol: Σ. In azimuth, the Sigma antenna pattern is a pencil beam that is approximately 2.4 degrees wide. The Sigma pattern is used for transmitting interrogations and for receiving replies. |
| Simultaneous Replies | A group of replies in which the F1 pulse of the last reply occurs no later than the SPI pulse position of the first (earliest) reply. |
| Site Adaptable | Local configuration parameters able to be modified or adjusted by the user for the configuration and optimization of the RSR. |
| Six Level Weather | As defined by NOAA, precipitation is categorized in six levels, depending on the strength of the return at the radar. The six Video Integrator and Processor levels are defined as follows: |
| (Level 1, 18-29 dBZ) - Light precipitation. | |
| (Level 2, 30-38 dBZ) - Light to moderate rain. | |
| (Level 3, 39-44 dBZ) - Moderate to heavy rain. | |
| (Level 4, 45-49 dBZ) - Heavy rain. | |
| (Level 5, 50-57 dBZ) - Very heavy rain; hail possible. | |
| (Level 6, >57 dBZ) - Very heavy rain and hail; large hail possible. | |
| Solution List | The set of network coverage maps and other parameters used for each state of a RSR-CSR Surveillance Coordination Network cluster. The Solution List is specified in Eurocontrol SUR/MODES/EMS/ICD-03 European Mode S Station Coverage Map Interface Control Document. |
| Split Detection Cluster | A return which the processor has determined is too large in range or azimuth to be a single target; the processor splits the target in two based on its complex cluster algorithm scheme |
| Split Target | One of the resultant targets split off from the split detection cluster |
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