Attachment_1_-_SOW.pdf

National Oceanic and Atmospheric Administration (NOAA)

DSCOVR Antenna Improvement (DAI) Hurricane Rated HR Feed Upgrade Statement of Work (SOW)

National Environmental Satellite, Data, and Information Service (NESDIS) 11-13-2018

For Official Use Only November 13, 2018

Contents

1 OVERVIEW

1.1 References

1.2 Terminology

1.3 Antenna Environmental Requirements

2 HR ANTENNA FEED UPGRADE TECHNICAL REQUIRMENTS

2.1 Antenna Surface Assessment

2.2 Antenna System RF System Requirements

2.3 Antenna RF System Components

2.4 DSCOVR Ranging

3 SYSTEM SUPPORT REQUIREMENTS

3.1 Spares

3.2 Training

4 PROGRAM REQUIREMENTS

4.1 Project Schedule

4.2 Monthly Progress Reports

4.3 Documentation

4.4 Contract Type

4.5 Period of Performance

4.6 Place of Performance

4.7 Government Furnished Property/Information

4.8 Security

5 QUALITY ASSURANCE PROVISIONS

5.1 General

5.2 Design reviews

5.3 Test plan

5.4 Installation and test readiness review

5.5 Test Reports

5.6 Warranty

6 DELIVERABLES

7 PREPARATION FOR DELIVERY

7.1 Preservation and packaging

7.2 Packing

7.3 Marking

8 APPENDIX A: ANTENNA UPGRADE SPECIFICAITONS

8.1 NOAA Wallops HR-2 Feed Upgrade Requirements

8.2 Antenna System Requirements

8.3 HR#2 Feed upgrade RF requirements

8.4 “L” and “S” Band LNA Upgrade Requirements

8.5 Triplexer Requirements

8.6 Feed Assembly mounting methodology

8.7 Antenna Environmental Requirements

8.8 Antenna Installation Requirements

8.9 Antenna Feed Acceptance Test Requirements

8.10 Antenna Data

8.11 Antenna Data (Continued)

8.12 System Gain-to-Noise Temperature (G/T)

8.13 Antenna Equivalent Isotropically Radiated Power (EIRP)

8.14 End-to-End Receive Path Requirements

8.15 Voltage Standing Wave Ratio (VSWR)

8.16 Standard Antenna Side lobe Radiation Pattern

8.17 Antenna RF Systems Link Budget

9 APPENDIX B: ACROYMNS

1 OVERVIEW

The National Oceanic and Atmospheric Administration (NOAA), National Environmental Satellite, Data, and Information Service (NESDIS) Office of Satellite Ground Services’ (OSGS) mission is to sustain current NESDIS capabilities, to enable future capabilities, and to create an integrated ground enterprise. Satellite data acquisition from the Deep Space Climate Observatory (DSCOVR) is a crucial current NESDIS capability. DSCOVR monitors magnetic plasma emanating from the Sun. This data is provided as a real-time data stream to the NESDIS National Weather Service (NWS) customer, the Space Weather Prediction Center (SWPC). The data is used by SWPC to produce space weather forecasts, watches, warnings, and alerts.

DSCOVR is NESDIS’ primary real-time solar storm warning system at LaGrange Point 1 (L1).

NESDIS Wallops Command and Data Acquisition Station (WCDAS) is the primary facility for commanding DSCOVR and downlinking DSCOVR telemetry. Currently, the backup system resides at the Fairbanks Command and Data Acquisition Station (FCDAS).

NOAA recently conducted the DSCOVR Antenna Improvement (DAI) study to determine which WCDAS antenna(s) was most promising to modify. This would serve year-round as the DSCOVR main or backup antenna. A factor driving the study was the Fairbanks backup system which is unable to provide coverage during winter months. Additionally, some WCDAS antennas need feed and/or horn improvements to achieve the required performance. Maintenance repairs are also needed to effectively support DSCOVR in out-years.

The DAI study recommended upgrading the WCDAS legacy HR2 16.4M Hurricane Rated (HR) antenna to transmit and receive DSCOVR telemetry. HR2 requires feed modifications to enable optimal long-term support to the DSCOVR mission while retaining coverage of the legacy GOES NOP mission. This upgrade will require design, photogrammetry, and development of the antenna feed hardware and software (if needed) as well as installation and acceptance testing at WCDAS to demonstrate that specified requirements are met.

The project scope shall have the contractor conduct an onsite assessment survey of the RF Feed and associated assemblies, and perform any modifications, replacements or upgrades necessary to optimize HR2 to support all DSCOVR mission requirements: data downlink, command uplink, ranging and tracking for the long term (5– 20 years) in service as the primary antenna, as well as to fulfill all existing GOES legacy ‘NOP’ mission requirements. During the study, mechanical improvements for the antennas were reviewed by the Government Program Management Office (GPMO) but are not included herein.

All the requirements contained herein shall be met simultaneously under all environmental conditions except where specified.

1.1 References

• NESDIS No. S24.801 Preparation of Operation and Maintenance Manuals March 1, 1974 (Revised 02/02/04)

• NESDIS No. S24.802 General Requirements for Ground Electronic Equipment, April 1997 (Revised 02/02/04)

• NESDIS No. S24.803 Cable and Wire Identification, March 1997 (Revised 07/15/00)

• NESDIS No. S24.804 General Requirements for Training On Electronics Equipment

(Revised 02/02/04)

• NESDIS No. S24.805 Spare Parts 12/10/74 (Revised 02/02/04)

• NESDIS No. S24.809 Grounding Standard December 01, 1989 (Revised 12/22/2000) (Best version)

• DOC NOAA, IT Security Manual 212-1302, March 31, 2008 (https://www.csp.noaa.gov/policies/manual/212-1300.html password controlled web site)

• EIA-411A 09/00/86 Electrical and Mechanical Characteristics of Earth Station Antennas For Satellite Communications

1.2 Terminology

Meaning of terminology used is as follows:

1. The term “shall” designates a requirement.

2. The terms “will” and “is” designate statements of fact.

3. The term “TBS” means “to be supplied,” and its use identifies missing or incomplete information, values, or data needed to fulfill a requirement.

4. The term “TBD” means “to be determined” and identifies a missing requirement.

5. The term “TBR”, means “to be refined/reviewed” and indicates that the requirement is subject to review for appropriateness and subject to revision.

6. The terms “Ground Segment” and “GS” include the total scope of GOES-R GS architecture and functionality identified in the GS Functional and Performance Specification (F&PS) and Interface Requirements Documents (IRDs).

7. The term “Monthly” means monthly by the 15th of each month or as required or modified by the CO.

8. The term “Bi-weekly” means submitted with Bi-weekly Status Reports by Tuesday close of business or as modified by the Contracting Officer (CO).

9. The term “Weekly” means submitted weekly by Friday close of business or as modified by the CO. The term Days means, unless indicated otherwise, calendar days.

https://www.csp.noaa.gov/policies/manual/212-1300.html

10. The term “POP” means Period of Performance, referring to contract POP.

11. The term “As Generated” means after each initial edition, revision, and addition. As

Generated items that are critical to schedule, performance, or interface shall be transmitted to the Ground Segment Project within 48 hours of generation.

12. The term “As Required” means items updated and delivered at the direction of the CO or as specified in the data item requirements.

13. The terms “Gov” and “G” mean the Government.

14. The term “B&W” refers to black and white print.

1.3 Antenna Environmental Requirements

The antenna shall operate in accordance with the environmental conditions specified in Paragraphs 3.14 through 3.14.7 of NOAA/NESDIS Standard No. S24.802, (Heaters may be used, if desired at the lower temperatures.)

• Precipitation, from rain, fog, or mist up to 100 mm per hour (3.94 inches/hour).

• If the antenna is positioned such that it will collect snow, it shall withstand a 30 centimeter (11.8 in) accumulation.

• Low wind: steady velocity of up to 45 km per hour (28.0 mph) with maximum pointing accuracy.

• Medium wind: a one minute mean wind speed between 45 km per hour (28.0 mph) and 70 km per hour (43.5 mph),

• Gusts of up to 95 km per hour (59 mph) with the defined reduced pointing accuracy.

• High wind: the equipment shall operate in winds up to 125 mph with the defined minimum pointing accuracy.

The RF feed environmental requirements are set forth in Appendix B2.

2 HR ANTENNA FEED UPGRADE TECHNICAL REQUIRMENTS

The HR2 antenna feed and related assemblies located at WCDAS shall be upgraded or replaced to support all DSCOVR mission requirements as well as existing legacy GOES NOP requirements.

The contractor shall design, fabricate, acquire, install, and test all parts, assemblies, and subassemblies of the HR2 feed to enable the antenna to meet all DSCOVR system requirements as well as existing legacy GOES NOP requirements.

2.1 Antenna Surface Assessment

In order to optimize the performance of the antenna the contractor shall evaluate/baseline the antenna’s condition and perform a reflector surface assessment. The contractor shall perform a theodolite, laser scan, and/or photogrammetry of antenna surfaces to determine corrective actions for any performance degradation due to warpage from the years of service. These corrective actions shall be incorporated on the antenna during the implementation phase.

2.2 Antenna System RF System Requirements

The HR2 feed shall be modified or replaced to improve and optimize DSCOVR mission support as well as meet all existing GOES NOP support requirements.

• RHCP and LHCP are required to support DSCOVR mission. The antenna presently provides Co-linear GOES NOP legacy mission support.

• The RHCP S-band G/T shall be as a minimum be 29 dB/K.

• The present L-band legacy GOES G/T shall be at least 26.5 dB/K (rotatable collinear). The downlink data rate shall not be less than 138 kbps.

2.3 Antenna RF System Components

The contractor shall evaluate the 16.4M antenna RF components to include all LNAs, downconverters, up-converters, and Fiber Optic (FO) transceivers. For each, the contractor shall provide a recommendation for suitability of re-use or in-kind replacement, along with replacement costs. The Government shall evaluate the recommendations and may elect to have the contractor replace all, some or none of the components. For each component the Government selects to replace the contractor shall procure and test the component at the unit level as well as integrate and perform on site system level acceptance testing. All changes to the Antenna RF system shall be documented.

2.4 DSCOVR Ranging

The antenna shall be capable of performing all DSCOVR and legacy GOES NOP ranging and ranging calibration functional requirements.

The Specific HR Feed Upgrade Requirements are defined in Appendix B.

3 SYSTEM SUPPORT REQUIREMENTS

3.1 Spares

The Contractor shall provide a recommended list of equipment spares to be approved by the Government at the Operational Readiness Review. The spares shall be in accordance with the requirements of Standard S24.805. All spares should be configured such that they can be readily installed into operations, and must be tested, available and delivered by the Commissioning Review.

3.2 Training

The contractor shall develop and provide training in accordance with the requirements of Standard S24.804 and submit a training plan three months after contract award. This plan shall define training courses recommended by the contractor to qualify Government O&M personnel on the new system. Upon Government approval of the training plan, the contractor shall develop courses of instruction. As a minimum, the contractor shall provide informal operations and maintenance site training following the installation of the feed assembly for up to five people.

The training shall impart the knowledge necessary for site personnel to maintain the new feed assembly. Training shall include certification testing for the following topics: alignment, preventative, and corrective maintenance.

4 PROGRAM REQUIREMENTS

4.1 Project Schedule

A baseline Integrated Project Management Schedule (IPMS) shall be submitted within the first 30 days of the contract. The Contractor shall briefly describe the assumptions upon which the project schedule is based. These should include program management, teams or subcontractors participating in the process, engineering, manufacturing, test support, and quality assurance resources. Other areas to describe are critical schedule and long lead times, anticipated risks and key issues, and employed COTS and developmental items. This outline and the Contractor schedule should convey that the plans and methodologies are clear and achievable.

4.2 Monthly Progress Reports

The contractor shall provide monthly progress reports. The initial report (due within two (2) weeks after contract award) shall contain a schedule showing all significant milestones in the project and the methods to be used in defining completion status of each item. Each progress report thereafter is due by the tenth day of the month and shall be divided into a management section and technical section.

4.2.1 The management section shall contain the following:

• A milestone chart /progress schedule showing to date versus the anticipated progress for each major portion of the work (hardware and software tasks shall be individually divided).

• Project risk charts documenting all project related risks and/or issues. Risks shall be assessed, categorized and formatted in accordance with NESDIS Corporate ARM standards.

• A listing of any major hardware purchases throughout the reporting period.

4.2.2 The technical section shall contain the following:

• All problems encountered and solutions proposed during the preceding month.

• Major requirement clarifications received during the preceding month from the COTR or as a result of the monthly coordination meetings.

• Outstanding questions requiring government decision or guidance.

• Supporting documentation on software and hardware systems activities and integration.

• Planned activities for the following month.

4.3 Documentation

All contract developed project documentation shall be prepared in accordance with S24.801 and delivered to the government in electronic form via Acellion. A final copy of all deliverable and associated documentation shall be provided on CD, DVD, USB or equivalent at the Commissioning review.

At a minimum, a set of drawings for the feed and finished overall assembly are required as well as a detailed parts list identifying part number and OEM for each part of the feed assembly along with any other provided parts and/or hardware.

4.3.1 Document Delivery Format

Electronic deliverables shall be delivered in the following table formats unless otherwise specified in the data item description or approved by the GPMO:

Artifact Format Text Documents Microsoft Word Presentations Microsoft PowerPoint Spreadsheets Microsoft Excel

Database

Delimited ASCII files accompanied by either database schema document defining tables and entries or XML schema and tagged definitions

Schedules Microsoft Project

Schematics and Drawings AutoCAD and Portable Document Format

(PDF)

Photographs JPEG or current industry standard

Video Any readily available open standard (e.g., AVI, MPEG)

4.4 Contract Type

This is a firm-fixed price (FFP) type contract.

4.5 Period of Performance

The period of performance for this project is 104 weeks, including warranty, as defined by Section 6 Deliverables.

4.6 Place of Performance

The primary place of performance will be at the Contractor site. The Contractor is required to attend reviews in person at the NOAA Satellite Operations Facility (NSOF) in Suitland, MD.

Integration, installation and test activities shall be performed on-site at Wallops Command Data Acquisition Station (WCDAS).

4.7 Government Furnished Property/Information

The Government does not anticipate that the vendor will require Government Furnished Property (GFP) under this effort. Project-dependent Government Furnished Information (GFI) will be provided to the vendor for informational purposes.

4.8 Security

The contractor must comply with the IT Security requirements of the Department of Commerce as outlined in Commerce Acquisition Regulation (CAR):

• CAR 1352.239-72, Security Requirements For Information Technology Resources (April 2010).

• CAR 1352.239-72, section (d) includes the DOC IT Security Program Plan, the NOAA IT Security Manual

• NESDIS IT Security Handbook. The contractor must also comply with FAR Clauses 52.204-21, 52.224-1, 52.224-2 and 52.239-1.

Contractor personnel will be screened in accordance with the requirements for Moderate Risk contracts as specified by Commerce Acquisition Manual (CAM) 1337.70 section 2.2 (Oct 2015); specifically, in accordance with CAR 1352.237-70, Security Processing Requirements— High or Moderate Risk Contracts (April 2010). Any access by contract personnel who are Foreign Nationals must be in accordance with the requirements of CAR 1352.237-73, Foreign National Visitor and Guest Access to Departmental Resources (APR 2010).

The contractor must submit security forms required by CAR clause 1352.237-70 two (2) weeks prior to each new contract employee’s start of work so that the NOAA staff has sufficient time to process requests for background checks, NOAA badges, and network access.

The full text of the CAR clauses are available at: CAR Clause Repository

5 QUALITY ASSURANCE PROVISIONS

5.1 General

Unless otherwise specified, the Contractor is responsible for the performance of all inspection requirements as specified herein. Except as otherwise specified, the Contractor may utilize his own facilities or any commercial laboratory acceptable to the GPMO. The Government reserves the right to perform any or all of the inspections set forth in the specifications where such inspections are deemed necessary to assure the supplies and/or services conform to prescribed requirements.

5.2 Design reviews

The Contractor shall conduct two formal design reviews, preliminary and final. The design reviews and the design plan shall specifically address the requirements outlined in Section 2 of this SOW, as well as the unique performance requirements of the contract. Both design review presentations shall conducted in person by the contractor for all pertinent Government Stakeholders and shall be held at NSOF, Suitland MD. After the preliminary review the Contractor shall prepare, and submit to the GPMO for approval, a design plan.

5.2.1 Preliminary design review

The preliminary design review shall be held within 60 days after award of contract. At this time the Contractor shall describe the proposed design philosophy and present preliminary copies of electrical schematics, drawings, or other means of describing the equipment design and construction. The software portion of the review shall concentrate on major modules, routines, and their respective execution. Expected performance parameters shall also be stated. As described in section 5.2, the Contractor shall obtain approval from the GPMO of the preliminary design concept before start of detailed design by conducting a review and submitting the presented materials to the GPMO for further review and approval.

5.2.2 Design plan

The Contractor shall submit, for review to the GPMO, final schematics layout and principal shop drawings, final expected performance specifications, and a detailed description of the proposed equipment, at least two weeks prior to the final design review.

5.2.3 Final design review

The Contractor shall hold a formal final design review and obtain approval of the GPMO prior to releasing shop drawings or purchase requisitions. At this time, all drawings, schematics and performance will be reviewed in detail for conformance to the specifications. The contractor shall prepare visual aids to support this presentation and provide copies to each attendee.

5.2.4 Final design plan

The contractor shall provide the GPMO the final design plan at the final design review. The final design plan shall include a detailed description of the final design and every other element in the contract.

5.3 Test plan

The Contractor shall prepare, and submit to the COR for review and approval, a test plan at least 30 days in advance of the test date. The test plan is designed to demonstrate conformance with the specifications. After the Government approves the Test Plan, this Plan must be used by the Contractor for the corresponding test event. Prior to acceptance of any item delivered hereunder, the Contractor shall have submitted a Form DD-250 to the COR for his approval. Approval shall be granted based on completion of the tests in accordance with the procedures set forth in the Test Plan, and demonstration of the compliance of the product with the performance requirements of the SOW and the Contractor’s proposal.

This test plan, to be executed by the contractor, shall include the following in-plant and on-site tests:

A. Unit Level tests of hardware (including back-up and spare units) and software -- These tests shall be conducted in-plant and shall demonstrate the required functionality and performance of individual system components and processes within each subsystem. The hardware tests shall include running diagnostic(s) for each component.

B. Subsystem/System Level tests of hardware and software -- These tests shall be conducted in-plant and shall demonstrate required functionality and performance of the entire system utilizing simulated external devices. The contractor shall provide an effective method of debugging and testing developed software in an environment which simulates all configurations and operating conditions.

C. Pre-shipment, in-plant, form, fit, and functions tests demonstrating resolution of all discrepancies, errors, and omissions identified during unit and subsystem/system level tests.

D. Post-shipment, on-site, hardware and software tests demonstrating proper system function following installation.

E. System Integration tests, on-site, demonstrating proper interfacing, functionality, and performance with all actual external systems and equipment.

F. Final Acceptance Tests of hardware and software -- These tests shall be conducted on-site, after satisfactory installation, completion of other in-plant and on-site tests in accordance with the approved plan, and correction of all deficiencies identified during the tests or other Government inspections. The Final acceptance tests shall demonstrate total system interfacing, functionality, and performance of both hardware and software, and shall include demonstration of equipment/system availability for seven consecutive days.

5.4 Installation and test readiness review

The Contractor shall hold a formal installation and test readiness review and obtain approval of the GPMO prior to commencing installation and testing of the final product. The contractor shall provide the GPMO a copy of the final test plan at the installation and test readiness review.

5.5 Test Reports

Upon completion of both the in-plant and on-site tests the Contractor shall submit to the GPMO a copy of the test results in electronic format. These reports shall clearly identify any deviation from the specification requirements and reasons for them.

5.6 Warranty

The system, including all parts and spare parts shall be guaranteed against faulty design, materials, and workmanship for a period of one (1) year after installation and activation.

Should any defect in the design, workmanship or material develop, the defective part(s) shall be replaced with satisfactory part(s) by the Contractor at the point of installation without further expense to the Government.

Determination of the cause of failure and the subsequent redesign of components relating to warranty requirements shall be the sole responsibility of the Contractor. Failure due to poor workmanship, while not necessarily indicating poor design, will be considered in the same category as failure due to poor design. Redesigned replacements, including installation instructions and manual revisions resulting there from, which will ensure proper operation of the equipment, shall be supplied promptly, transportation prepaid, to the point of installation upon receipt of proper notice and without cost to the Government. If the Contractor elects to have the defective or replaced part(s) return to his plant, it will be returned upon receipt by the Government of proper notification and at the Contractor's expense.

In addition, the Contractor shall state the number of years, after the warranty period, during which special or non-standard parts will be available for procurement by the Government.

6 DELIVERABLES

Deliverable Description Deliver to

Due Date (After Contract Award) Weeks

1. Antenna Surface Assessment

Per SOW Para 2.1 Surface Assessment Findings (include in PDR)

COR 8

2. New Antenna Feed Per SOW Para 2.2 Design, Test, Install, Integrate, Document, Accepted

COR 52

3. Antenna RF System Components

Per SOW Para 2.3 Procure, Test, Install, Integrate, Document, Accepted

COR 52

4. DSCOVR Ranging Certifications

Per SOW Para 2.4 Include all Tests Performed/Certification sign off Delivered

COR 52

5. Spare Parts Per SOW Para 3.1 COR 52

6. Training Per SOW Para 3.2 COR 50

7. Project Schedule Per SOW Para 4.1 COR 4

8. Monthly Progress Reports

Per SOW Para 4.2 COR Every 4

9. Documentation Per SOW Para 4.3 COR 48

10. Design reviews Per SOW Para 5.2 COR

11. Project Kick off Meeting

Review project schedule COR 2

12. Preliminary Design Review (PDR)

Per SOW Para 5.2.1 COR 8

13. Design Plan Per SOW Para 5.2.2 COR 10

14. Final

Design Review Per SOW Para 5.2.3 COR 12

15. Final Design Plan Per SOW Para 5.2.4 COR 12

16. Test plan Per SOW Para 5.3 COR

17. In-plant Test Per SOW Para 5.3 c) COR 36

18. On-site Acceptance

Test Per SOW Para 5.3 f) COR 48

19. Installation Plan Per SOW Para 5.4 COR 36

20. Test Reports Per SOW Para 5.5 COR 48

21. RF Feed Upgrade

Warranty Per SOW Para 5.6 COR 104

7 PREPARATION FOR DELIVERY

7.1 Preservation and packaging

Preservation and packaging shall be sufficient to afford protection against corrosion and deterioration during shipment from the Contractor's plant to the destination and until installation. This degree of protection may conform to the manufacturer's commercial practice when such practice meets or exceeds these requirements.

7.2 Packing

Each unit of the equipment shall be substantially packed, including necessary bracing, to assure delivery in undamaged condition. Large parts, electrical and electronic assemblies, and other delicate mechanisms shall be packed in sturdy wooden crates or heavy boxes. Large structural items need not be completely packaged so long as they are adequately protected.

7.3 Marking

Each crate, box, or unit or equipment shipped as less than a truckload shall be legibly marked with consignee's name and address, Contractor's identification, contract number, and any additional required labeling. If shipment is by Contractor's vehicle these marking, requirements are waived.

8 APPENDIX A: ANTENNA UPGRADE SPECIFICAITONS

8.1 NOAA Wallops HR-2 Feed Upgrade Requirements

Upgrade requirements for the Wallops 16.4M HR-2 series Antenna are set forth herein. The prime objective is to replace or retrofit the existing feed on HR2 to enable fulfillment of all DSCOVR mission requirements. Additionally, the feed shall also fulfill all current legacy GOES NOP mission requirements.

The existing GOES NOP mission requirements require an L-band G/T of 26.5 dB/K. This is currently implemented via a rotatable co-linear L/S-band feed configuration. DSCOVR, on the other hand, requires a circular feed configuration (RCHP/LHCP) due to the spacecraft’s RF uplink and downlink polarization. The contractor may modify and/or redesign the present feed or any portion thereof if it will work with their design. The final feed configuration must satisfy each mission’s requirements.

For the 16.4M antenna RF components the contractor shall also replace the LNAs, down-converters, up-converters, and Fiber Optic (FO) transceivers.

The Government will provide access to existing drawings and photos of the 16.4 M antenna and its subassemblies. The offeror is welcome to visit Wallops for a period as defined in the solicitation to review all documents and inspect the antenna and subsystems thereof. If any special testing is required this must be coordinated through the COR or their designated representative at least two weeks before the visit. An onsite inspection is recommended prior to contract award.

8.2 Antenna System Requirements

The 16.4M HR Antenna Subsystems design life shall be as follows:

Subsystem Design Life (Years) Structure (pedestal, reflector, feed) 20 Electronics (Feed, Controls, Motors, Brakes) 10 Controller (Local, remote, remote interface) 5 Other 20

8.3 HR#2 Feed upgrade RF requirements.

The HR#2 Feed upgrade shall meet or exceed the following “S” and “L” Band RF requirements:

S-Band Requirements

S-Band Requirements Receive Transmit

Frequency Range (MHz) 2200 – 2250 2025 - 2050

Operational Frequencies (MHz) 2208 to 2216 2025 – 2040.5

Minimum Dish Gain 48.4 dB 49.34 dB

Minimum G/T (dB/K), 5 degrees elevation, clear sky

29.0 dB/K N/A

Polarization

RHCP

/LHCP

Selectable

RHCP or LCHP/ Co-linear switchable

Axial Ratio within 1 dB Beam-width with new horn

<1.5 <1.5

VSWR with new horn worst case <1.5:1 <1.5:1 Min Port-to-Port Isolation at 2027 and 2040 MHz

20 dB N/A

Transmit-to-Receive Isolation N/A > 120 dB

Gain Flatness across band +/- 1 dB +/- 1 dB

Dynamic Range (for info purposes) -120dBm to -

50 dBm at LNA input

N/A

First Sidelobe Level -20 dB N/A

Transmit Sidelobe Pattern Gain Where M = the angle between the antenna main beam center and the direction considered.

N/A

G=32-25 Log M for 1° < M< 48 °

G= -10 for 48° < M< 180 °

Transmit EIRP (max) existing capability N/A 109.6 dBm

Max Transmitter Power (Future) Capability) N/A 1.0 KW

Replaceable Waterproof Feed Horn window to prevent water intrusion into the Feed assembly

(i.e., Teflon/ Goretex)

L-Band Requirements L-Band Requirements Receive Transmit Frequency Range (MHz) 1675- 1695 N/A

Operational Frequencies (MHz) 1675-1695 N/A

Minimum G/T (dB/K), 5° elevation, clear sky

26.5 dB/K N/A

GOES Existing capability Rotatable

Co- Linear

N/A

New feed assembly or modifications to existing to meet requirements.

TBD N/A

Axial Ratio within 1 dB Beamwidth with new feed

<1.5 N/A

VSWR with new feed worst case <1.5:1 N/A Port-to-Port Isolation at 1675 and 1695 MHz

20 dB N/A

Transmit-to-Receive Isolation

N/A N/A

Gain Flatness across band +/- 1 dB N/A

Dynamic Range (for info purposes)

-120dBm to - 50 dBm at

LNA input

N/A

First Side-lobe Level -20 dB

N/A

Replaceable Waterproof Feed Horn window to prevent water intrusion into the Feed assembly

(i.e.,Teflon/ Goretex)

8.4 “L” and “S” Band LNA Upgrade Requirements The LNA Subsystem shall meet or exceed the following electrical specifications:

Requirements

3.1 Redundant S Band LNA assy.

with controls (Existing components)

60 dB Nominal Gain 30 degree K Noise Temperature

3.2 Upgrade option - LNA plate to an

inter-stage filtered LNA is desired to minimize/ eliminate interference @ 2196MHz. 40 dB of attenuation is required.

Provide a quote for a redundant LNA plate with WR-430 waveguide interface and mounting hardware.

SMA coax output.

3.3 Optional Redundant L-Band LNA

assy. with controls (Existing components)

60 dB Nominal Gain 30 degree K Noise Temperature

8.5 Triplexer Requirements

The Triplexer assembly shall meet or exceed the following electrical specifications:

Requirements

4.1 S Band Transmit frequency 2025 to 2050 MHz

4.2 L Band Receive frequency 1675 to1695 MHz

4.3 S Band Receive frequency 2200 to 2250 MHz

4.4 VSWR

Port 1 Antenna Feed 1.2:1 Max Port 2 L Receive 1.2:1 Max Port 3 S Receive 1.2:1 Max Port 4 S Transmit 1.2:1 Max

4.5 Insertion Loss

Transmit 0.3 dB Max L Receive 0.2 dB Max S Receive 0.2 dB Max

4.6 Isolation Port 4 to Port 2: -120 dB Min

Port 4 to Port 3: -120 dB Min

4.6 Flanges WR-430 CPRG

4.7 Receive path filtering

All interference signals operating at 2196 MHz shall be attenuated in the S receive band by at least 40 dB or more. This may require an integral notch filter (or equivalent).

4.8 Filter Type

The triplexer shall utilize low loss band pass (elliptic function) filters (or equivalent) to eliminate out of band noise and RFI.

8.6 Feed Assembly mounting methodology

The Feed Assembly for the 16.4M Antenna shall meet the following mounting requirements:

Requirements

5.1 The new Feed Assembly shall be integrated into the existing Metal Feed support shroud

Mounting of feed assembly shall be rigid and stable. It shall include sufficient adjustment range to position the Feed for optimal sub-reflector and dish illumination.

5.2

The Feed Horn housing is to provide weather tight mounting in the Feed Horn Shroud

The Shroud shall have a weather tight seal between the feed and the feed shroud to prevent water intrusion.

8.7 Antenna Environmental Requirements

The feed assembly shall meet or exceed the following environmental Requirements at Wallops Island, Virginia:

Requirement Specification

6.1 Survival Winds (stowed) 180 MPH

6.2 Operational Winds 125 MPH

6.3 Ambient Temperature (Survival

and Operational, outside -10o to 120o F

6.4 Rain (Operational

and Survival)

Up to 1.96 inches/hour

6.5 Relative Humidity

(Operational and

0% to 100% with condensation

6.6 Ice (Operational) 0.5 inches

6.7 Ice (Stowed) 1 inch

6.8 Snow (Accumulating) 12 inches

6.9 Solar Radiation 360 BTU/h/ft2 (1000 Kcal/h/m2)

6.10 Shock and Vibration As encountered during shipment by

commercial air, sea or truck

6.11 Corrosive Atmosphere coastal region

8.8 Antenna Installation Requirements

Following are 16.4M antenna installation requirements:

Requirements

7.1 Modifications The contractor shall modify the feed housing or design and fabricate a new housing to accept the new feed.

7.2 Installation of

feed

The contractor shall install the feed in the feed housing with sufficient adjustability to permit proper focusing of the feed. Feed stability shall be rigid enough to maintain a stable position throughout the full range of antenna azimuth and elevation motion while allowing polarization rotation.

7.3 Polarization

rotation control

The contractor shall reconnect all polarization control cabling and verify functionality.

7.4 Dry Air

system

The contractor shall ensure that the new feed accepts dry air from the antenna air dryer at the necessary pressure to ensure no moisture will remain in the feed. A controlled airflow leak and pressure relief valve is the best way to guarantee the feed remains water free.

8.9 Antenna Feed Acceptance Test Requirements

Following are 16.4M antenna acceptance test requirements:

Requirements

8.1 Final Acceptance

Test The Final Acceptance Test shall performed following the installation of the new feed in the HR series antenna at the Wallops Island Facility. Testing shall include azimuth and elevation antenna patterns for transmit and receive as well as Beam-width, and transmit to receive isolation at 1000 watts uplink power at low, mid and high end of the transmit band while monitoring the L and S receive bands.

Monitor both bands for the presence of uplink signal in the downlink paths.

8.2 Subsystem Tests Feed primary patterns and other tests to verify compliance with the above specifications shall be conducted at the contractor’s facility. These tests are required to demonstrate that the feed provides a proper illumination pattern for the sub-reflector and main reflector optics.

8.3 G/T Test The contractor shall demonstrate the required G/T by measurements at the output of the IFDS, and of the LNAs, made both during first article testing of the fully functional antenna and post-installation.

G/T Test methodology shall comply with EIA-411A

6.6.2 (Radio Star Method) and be approved by COTR. Antenna elevation shall be greater than 5 degrees.

8.10 Antenna Data

The following compilation is data from antenna manuals and other sources.

The SETI League, Inc. Parabolic Antenna Analysis User specifies variables shown in Yellow

Frequency = 2215 MHz; 13.5 Cm

Reflector Diameter = 16.40 meters 53.80000 ft 645.

Reflector Depth 3.45 meters 11.30641 ft 135. inches =

Focal length 4.88 meters 16.00000 ft; F/ 0.2974 Feed Illumination = 2.80 radian = 1 Degrees

Illumination = 60 % Computed Antenna = 8.7E+04 Ap = 4 DBi

Antenna Half Power = 8.5E-03 radian = 0. Degrees Minimum Drift Scan = 1.9E+00 min = 11 Sec

Given f and D solve for c Focal Length = f = 16.000 feet From Manual

Focal Length = 16 Feet 192 inches Diameter = D = 53.800 feet F/D = 0.2974 c=Depth = (D^2/f)/16

11.3064 feet Vertex to Elevation axis = 8.166 Feet

Reflector Diameter = 5 Feet ~16.4 meters Given D and c solve for f

Focal Length = f = HR Antenna Depth = c = 11.306 feet Frequency MHz

Diameter = D = 53.800 feet DishHR Series Diameter

Feet f = (D*D)/(16*c) 16.000 feet Reflector Depth = c = 11 Feet Focal Length = f = 16 Feet 1 meter = 39.370 Inches

8.11 Antenna Data (Continued)

The SETI League, Inc. Parabolic Antenna Analysis User specifies variables shown in Yellow

Frequency = 2215 MHz; 13.5 Cm

Reflector Diameter = 16.40 meters 53.80000 ft 645.

Reflector Depth 3.45 meters 11.30641 ft 135. inches =

Focal length 4.88 meters 16.00000 ft; F/ 0.2974 Feed Illumination = 2.80 radian = 1 Degrees

Illumination = 60 %

Computed Antenna = 8.7E+04 Ap = 4 DBi Antenna Half Power = 8.5E-03 radian = 0. Degrees

Minimum Drift Scan = 1.9E+00 min = 11 Sec

Given f and D solve for c

Focal Length = f = 16.000 feet From Manual Focal Length = 16 Feet 192 inches Diameter = D = 53.800 feet F/D = 0.2974 c=Depth = (D^2/f)/16 11.3064 feet Vertex to Elevation axis = 8.166 Feet Reflector Diameter = 5 Feet ~16.4 meters

Given D and c solve for f

Focal Length = f = HR Antenna

Depth = c = 11.3064 feet Frequency MHz Diameter = D = 53.800 feet DishHR Series Diameter Feet f = (D*D)/(16*c) 16.000 feet Reflector Depth = c = 11 Feet Focal Length = f = 16 Feet 1 meter = 39.3700 Inches

8.12 System Gain-to-Noise Temperature (G/T)

The L-band and S-Band receive antenna gains should be sufficient to meet system G/T requirements (see “System Gain-to-Noise Power Density”). The contractor shall demonstrate the required G/T by measurements at the output of the IFDS, and of the LNAs, made both during first article testing of the fully functional antenna and post-installation. G/T Test methodology shall comply with EIA-411A 6.6.2 (Radio Star Method) and be approved by COTR. Antenna elevation shall be greater than 5 degrees. Offerors shall include in their proposal an analysis of how the required G/T will be achieved, plus a description of, and the accuracy provided by, the proposed method of measurement. First article test data of antenna gain; LNA gain; insertion losses; etc. shall be used to predict on-site G/T at each progress and design review.

ANTENNA

FEED RX

Rx L-Band Co-Linear

Rx S-Band

LHCP/RHCP

G/T (dB/K) 26.5 29

8.13 Antenna Equivalent Isotropically Radiated Power (EIRP)

The S Band transmit system shall provide a maximum EIRP of at least 109.6 dBmi at S-band.

The contractor shall demonstrate EIRP capability for all uplinks. Separate antenna gain, line loss, and transmitter power measurements may be used; first article and post-installation tests shall be performed.

8.14 End-to-End Receive Path Requirements

The receive parameters shall be met from the input of the LNAs to the input to the IFDS for each designated band.

Parameter Specification Gain: 70 dB nominal Gain Adjustment: ± 20 dB minimum Output Level: - 15 dBm nominal Output 1 dB Gain Compression: 10.0 dBm Output Amplitude Variation: 1.0 dB peak to peak within the designated bandwidth Gain Stability: 1.0 dB peak to peak due to temperature and aging Gain Slope: 0.2 dB/MHz maximum Image Rejection: 80 dB minimum Spurious Outputs: -65 dBc Phase Noise: 1.0 degree RMS (integrated from 1 Hz to 100 MHz) AM/PM Conversion: 0.1 degree/dB maximum

8.15 Voltage Standing Wave Ratio (VSWR)

The VSWR at the feeds shall not exceed 1.5:1 over its applicable operating receive frequency band and over the applicable transmit frequency band between the antenna feed connection and the first stage amplification.

8.15.1 Waveguides and Rotary Joints. The contractor shall provide and install all waveguide, rotary joints, pressurization fittings, etc., complete with all necessary hardware, between the feed assembly and the connection points in the equipment shelter. The transmit feedline shall be WR 430 for L- and S-Bands.

8.15.2 Waveguide Flanges. All waveguide, and all equipment mating to waveguides, whenever possible, shall be of welded construction (not epoxied) and supplied with grooved butt flanges.

8.15.3 Gaskets. The contractor shall supply and install RFI (Chromerics or equivalent) gaskets for all waveguide flanges. Full gaskets shall be used whenever possible. 100% spare gaskets shall be provided by the contractor.

8.15.4 Pressurization. All equipment that handles RF energy and contains air or gas cavities shall be pressurized with dry air. S- and X-band equipment shall be maintained at a pressure of approximately 3.5 kPa (0.5 psi) above atmospheric, but shall be able to withstand 34.5 kPa (5 psi) without damage. Offerors shall propose a suitable pressure for X-band equipment.

8.16 Standard Antenna Side lobe Radiation Pattern

The contractor shall use the radiation pattern in ITU recommendation P.465 as a reference. This recommendation states the radiation patterns shall produce side lobes with a gain (G) less than or equal to the following:

G = 32 - 25 log M dBi for 1˚ # M < 48˚ = - 10 dBi for 48˚ # M # 180˚ Where M = the angle between the antenna main beam center and the direction considered.

The contractor is not required to meet this pattern but shall compare it to the radiation pattern of the product being offered. It is desired that antennas come as close as possible to the ITU recommended pattern. As part of the reflector’s surface alignment, the contractor shall provide the theoretical antenna pattern and measured radiation pattern for the COTS product offered in the technical proposal.

8.17 Antenna RF Systems Link Budget

The Contractor shall submit a link budget and supporting analysis, showing the implementation loss for both L-Band and S-band of its proposed antenna system. The Contractor must propose a compliant link budget that meets the required performance specifications for closing the link with the DSCOVR satellite. Minimally, a 2 dB contingency design margin should be assumed for G/T.

9 APPENDIX B: ACROYMNS

ANSI American National Standards Institute BER Bit Error Rate CDA Command and Data Acquisition COR Contracting Officer’s Representative COTR Contracting Officer’s Technical Representative COTS Commercial Off the Shelf dB Decibel dBm Decibels relative to one milliwatt DAI DSCOVR Antenna Improvement DOC Department of Commerce DSCOVR Deep Space Climate Observatory DSN Data Source Name DSP Digital Signal Processor; Digital Signal Processing ERIP Equivalent Isotropically Radiated Power FTP File Transfer Protocol GMT Greenwich Mean Time GOES Geostationary Operational Environmental Satellite GPMO Government Program Management Office Hz Hertz HR Hurricane Rated ICD Interface Control Document IP Internet Protocol IRIG-B Inter-Range Instrumentation Group code B for 1 second timing standard kHz Kilohertz LAN Local Area Network MHz Megahertz NASA National Aeronautics and Space Administration NESDIS National Environmental Satellite, Data, and Information Service NIST National Institute for Standards and Technology (formerly NBS) NOAA National Oceanic and Atmospheric Administration NSOF NOAA Satellite Operations Facility NWS National Weather Service O&M Operations and Maintenance OEM Original Equipment Manufacturer RF Radio Frequency S/C Spacecraft SNR Signal to Noise Ratio SNTP Simple Network Time Protocol SQL Structured Query Language STX Start of Transmission Character in a communications protocol SYNC Synchronizer; Synchronization TCP Transfer Control Protocol TFTP Trivial File Transfer Protocol UDT User Description Table UHF Ultra High Frequency VLAN Virtual LAN VSWR Voltage Standing Wave Ratio WCDAS Wallops Command and Data Acquisition Station

4.2.2 The technical section shall contain the following:

9 APPENDIX B: ACROYMNS