NOI STATEMENT OF WORK.docx

DOCX document 73 KB Posted Jun 6, 2024

Attached to: NOAA 14. 2 Meter Antenna RF Feed Upgrade/Replacement
Solicitation number: 144002-24-0128
Issued by: Department of Commerce National Oceanic and Atmospheric Administration

About this file

Written by GovTribe AI · Jun 6, 2024

This document is a Statement of Work (SOW) for the upgrade or replacement of the 14.2-meter antenna Radio Frequency (RF) Feed Assemblies at the NOAA/NESDIS Wallops, VA Command and Data Acquisition Station (WCDAS). The SOW defines the requirements for a new 1000-watt L/S-Band antenna feed assembly, including tasks such as project planning, site survey, design review, factory acceptance testing, site acceptance testing, integration, training, and maintenance procedures. The related Federal contract opportunity is a sole source procurement from CPI Satcom & Antenna Technologies Inc., the original equipment manufacturer, due to their exclusive knowledge of the existing feed system and recent upgrade of the 14.2-meter Antenna Control System. The anticipated period of performance is a 10-month base period with a 1-year option period for warranty and technical support. The procurement will be conducted using Simplified Acquisition Procedures up to $7.5 million.

View the file

On GovTribe

Work with this file

Download the original file
Contacts named in this file
Similar government files
Ask GovTribe AI about this file

Try for free Login

Text version

The file's text, extracted by GovTribe without its formatting.

NOAA 14.2 Meter Antenna RF Feed Upgrade/Replacement Statement of Work (SOW) June 6, 2024

1 INTRODUCTION

The National Oceanic and Atmospheric Administration (NOAA), National Environmental Satellite, Data, and Information Service (NESDIS), Office of Satellite and Product Operations (OSPO) mission is to sustain current NESDIS capabilities, and to enable future capabilities. NOAA/NESDIS’s overarching goal is to migrate to an Enterprise ground system solution and eliminate mission specific designs. A needed step in this migration is the upgrade or replacement of the Polar 14.2-meter antenna RF Feed Assemblies. The current L/S-Band feed had been degraded subsequently impacting operation performance. OSPO requires a new or complete replacement feed assembly.

The purpose of this SOW is to define requirements for a new replacement L/S-Band antenna feed assembly for the 14.2-Meter antenna located at the Wallops, VA Command and Data Acquisition Station (WCDAS) to meet or exceed the stated Government requirements & specifications. RF feed assembly shall be capable of continuous 1000 Watts power operation.

2.0 SOW TASKS

The following tasks provide the specifications, requirements and services needed for the implementation of the 1000-watt L/S-Band 14.2-meter antenna feed replacement.

· The Contractor shall provide an initial Project Plan and conduct a Project Kickoff meeting two weeks after contract award.

· The Contractor shall provide a baselined Project Management Schedule (PMS) within thirty days of contract award.

· The Contractor shall perform a site survey to determine mechanical and electrical interface requirements.

· The Contractor shall hold a design review within 4 months of contract award. The design review shall address all necessary requirements outlined in this SOW and any issues or concerns observed during the aforementioned site survey.

· The Contractor shall provide and install the antenna feed assembly, which meets or exceeds the stated Government requirements and specifications within Section 2.1.

· The Contractor shall deliver a L/S-Band feed design which can tolerate a sustained 1000-watt continuous uplink power and comply with all stated requirements and specifications within this SOW. Unit level devices or Systems level devices shall not be negatively impacted by the aforementioned stated power level.

· The L/S-Band feed design shall include, but is not limited to, low noise amplifiers (LNAs), LNA Plate, Triplexers, orthomode transducer (OMT), relevant filters and associated cabling. The aforementioned devices shall meet the requirements and specifications per this SOW as unit level devices and when integrated as a coherent system. Unit level devices or Systems level devices shall not be negatively impacted by the aforementioned stated power level.

· The Contractor shall ensure the 14.2-meter L/S-Band feed assembly provides the relevant error and sum channels inputs to the monopulse/scan plate. These tracking signals shall enable the “as built” system to maintain auto-track capability.

· The Contractor shall ensure the new 14.2-meter L/S-Band feed assembly conforms to Equipment Specification in Section 2.1 of this SOW and meet the functional and performance requirements.

· The Contractor shall provide the Factory Acceptance Test (FAT) Plan and procedure 4 weeks prior to the test. Government comments will be provided 2 weeks prior to the test and the Contractor shall integrate the comments into the test plan where applicable. Government concurrence on the FAT plan must be received prior to FAT execution.

· Factory acceptance testing shall demonstrate the RF Feed assembly’s ability to accept 1000-watts of continuous power while meeting the specifications for Transmit Band Rejection from Transmit to Receive Port, Receive band rejection from transmit to receive port, and Out of Band Rejection listed in the table of specifications in section 2.1 of this SOW.

· The Contractor shall accomplish a successful FAT for the new 14.2-meter L/S-band feed assembly and provide the test results to the Government for approval prior to shipment.

· The Contractor shall provide a Monitor & Control interface for control of feed switches, filter selection, status messages, and alarms.

· The Contractor shall provide engineering support for the integration of the new feed assembly into the existing 14.2-meter antenna system.

· The Contractor shall baseline and record the current S/L and X-Band RF and tracking performance prior to the integration of the new feed.

· The Contractor shall provide the Site Acceptance Test (SAT) Plan 4 weeks prior to the test. Government comments will be provided 2 weeks prior to the test and the Contractor shall integrate the comments into the test plan where applicable. Government concurrence on the SAT plan must be received prior to SAT execution.

· The contractor shall accomplish a successful SAT for the 14.2-meter antenna system. SAT shall demonstrate Government requirements & specifications at nominal power & at high power (1000 watts) levels. High power levels shall not negatively affect SAT performance.

· The Contractor shall provide resources to support the Operations Verification period post SAT for 30 days of continuous operation to address any anomalies or operations issues after the first article installation at WCDAS.

· The Contractor shall support technical interchange meetings, working groups, and attend biweekly status meetings with Government representatives and stakeholders.

· The Contractor shall provide a monthly Progress Report that covers the production and installation schedule.

· The contractor shall integrate the new feed assembly and work with the Government or its designated representative to address all non-compliance requirements and specifications. The feed assembly integration schedule shall be coordinated with the Government in order to address any operational concerns. The feed assembly integration shall not negatively affect WCDAS Operations.

· The Contractor shall provide site training following the installation of the new feed assemblies. Training shall address the following areas; operations, tracking, preventative and corrective maintenance. Operator training shall include a combination of classroom and hands-on activities.

· The contractor shall provide applicable preventative and corrective maintenance procedures.

· The Contractor shall use a Government approved configuration management (CM) application and process.

2.1 EQUIPMENT SPECIFICATION

The 14.2-meter L/S-Band prime focus feed system currently consists of a feed horn, polarizer, orthomode transducer (OMT), triplexer, and associated rejection filters. It is positioned into its precise location by utilizing a quadpod apex structure. The tracking subsystem consists of four crossed dipoles with matched hybrids arrayed around the antenna’s feed horn. The crossed dipole and hybrid combination produce phase shifted dual circular signals to the relevant diplexer, comparator and rejection filter and ultimately generate dual circularly polarized L and S band X/Y error signals referenced to relevant the phase comparator. These X/Y error channel signals, in conjunction with the required sum channel signals, are provided to the tracking plate as inputs. Although the current tracking subsystem utilizes a crossed dipole design, this implementation type is not required. The tracking subsystem shall provide dual circularly polarized L and S band X/Y error channel signals and sum channels signs with sufficient gains as inputs to the antenna tracking/scan plate.

The S/L band beam alignment shall be within 0.01° of the existing Cassegrain X-band beam.

The upgrade to the L/S-Band prime focus feed shall not in any way negatively impact the X-band Cassegrain feed performance.

Prime Focus L/S-Band feed requirements

S-Band Requirements

Receive/Transmit

Receive

Transmit

Operational Frequency Range (MHz)

2200-2300

2025 – 2110

Minimum Transmit Gain at input of LCP/RCP switch (dBi)

N/A

46.8

Minimum G/T (dB/K), 5 degrees elevation, clear sky, referenced to the LNA input flanges

26.0

N/A

Polarization

Simultaneous Dual Circular RH & LH

RHCP or LCHP

switchable

Axial Ratio within 1 dB beam width (dB)

<1.0

< 1.0

Gain Flatness across band

1 dB peak to peak

Maximum First Sidelobe Level (dB)

-14

N/A

Maximum Continuous Transmitter Power (KW)

N/A

1.0

L-Band Requirements

Receive/Transmit

Receive

Transmit

Operational Frequency Range (MHz)

1690-1710

1750-1850

Minimum G/T (dB/K), 5° elevation, clear sky referenced to the LNA input flanges

24.0 dB/K

N/A

Minimum Transmit Gain at input of LCP/RCP switch (dBi)

N/A

46.0

Polarization

Simultaneous Dual Circular RH & LH

RHCP or LCHP

switchable

Axial Ratio within 1 dB beam width (dB)

< 0.75

< 1.0

First Side-lobe Level (dB)

-14

N/A

Maximum Continuous Transmitter Power (KW)

N/A

1.0

LNA Requirements

Requirement

Specification

L-band Frequency Range

1690-1710 MHz

2/3 L-Band LNA assembly with low loss switching and controls

>50 to 54 dB Gain

S-band Frequency Range

2200-2300 MHz

2/3 S-Band LNA assembly with low loss switching and controls

>50 to 54 dB Gain

LNA Input and Output Impedance

50 ohms

LNA input interface

Type N Female

LNA plate outputs

Type N female

LNA Gain flatness

0.5 dB peak-to-peak, maximum

LNA Gain slope

±0.005 dB / MHz, maximum

LNA Gain Variation with Temperature

±0.05 dB / °C maximum at -30 °C to 50 °C

LNA Gain Variation with Time

±0.5 dB / 24 hours at constant temperature

Noise Temperature (K)

30 K maximum

LNA Noise Temperature v. Ambient

0.4 K / °C maximum

LNA Linear Group Delay Variation

±0.5 ns / MHz maximum

LNA Parabolic Group Delay Variation

±0.078 ns / MHz maximum

LNA Ripple Group Delay

3 ns p-p maximum

VSWR

Input: 1.25:1; Output 1.25:1 or better

LNA Total Group Delay Variation

15 ns p-p maximum

LNA Switchover Time

<600 ms

LNA Input 1dB Compression Point

-30 dBm, minimum

LNA No Damage RF Input (1 minute)

0 dBm, minimum

Input and Output Return Loss

-17.7 dB, minimum

LNA Plate Requirements

· Plate shall consist of three LNAs, two primary units (online), and one offline backup unit

· LNA Controller shall communicate via TCP/IP text based and SNMP_v3 protocols for remote operation

· Two coax switches at the receive input and two coaxial switches at the receive output. Switches are individually configurable.

· One 40dB waveguide coupler at the assembly input – this coupled input will be used to introduce a test inject signal to either of the receive LNAs & associated paths. Coupled port connector will be N-type-F.

· Two 20dB coaxial couplers dedicated for the primary receive path, their outputs used as sum channels signals to the antenna tracking plate

· Coaxial switch and LNA connectors within the LNA plate assembly will be SMA connectors. The LNA plate outputs will be adapted to N-type-F connectors

· Interconnecting RF-Cable is low loss 141 semi rigid coaxial cable terminated with SMA-M connectors

Sample L&S band LNA plates

Triplexer Requirements

The Contractor shall meet or exceed the following triplexer specifications.

Triplexer Port Definitions

Port 1

Antenna

Port 2

S-band Receive

Port 3

S-band Transmit

Port 4

L-band Receive

Specification Type

Path

Frequency Range

Attenuation

S-band RX Filter

Port 1 to Port 2

2200 to 2300 MHz

< 1 dB

2100 to 2197 MHz

> 55 dB

2300 to 2400 MHz

> 55 dB

S-band TX Filter

Port 1 to Port 3

2025 to 2110 MHz

< 1 dB

2010 to 2021 MHz

>20 dB

2115 to 2140 MHz

>20 dB

1750 to 1850 MHz

< 1 dB

1720 to 1745 MHz

> 20 dB

1855 to 1875 MHz

> 20 dB

L-band RX Filter

Port 1 to Port 4

1690 to1710 MHz

< 1 dB

1600 to 1680 MHz

> 55 dB

1720 to 1745 MHz

> 55 dB

TX noise protection

Port 3 to Port 2

2200 to 2300 MHz

> 80 dB

Port 3 to Port 4

1690 to1710 MHz

> 85 dB

TX power protection

Port 2 to Port 3

2025 to 2110 MHz

> 100 dB

Port 2 to Port 3

1750 to 1850 MHz

> 100 dB

Port 3 to Port 4

2025 to 2110 MHz

> 100 dB

Port 3 to Port 4

1750 to 1850 MHz

> 100 dB

Return Loss

Port 1 to Port 2

2200 to 2300 MHz

>17.7 dB

Port 1 to Port 3

2025 to 2110 MHz

Port 1 to Port 3

1750 to 1850 MHz

Port 1 to Port 4

1690 to1710 MHz

Waveguide Connections

Port 1: CPR-430; Ports 2-4 : N Type

3 SECURITY

· The Contractor shall comply with personal identity verification requirements from FAR 4.1302 and FIPS PUB 201 [in accordance with Homeland Security Presidential Directive (HSPD-12)]

· The Contractor shall comply with FAR part 11.002(g) requirements which state that unless the agency Chief Information Officer waives the requirement, when acquiring information technology using Internet Protocol, the requirements documents must include reference to the appropriate technical capabilities defined in the USGv6 Profile (NIST Special Publication (SP) 500-267) and the corresponding declarations of conformance defined in the USGv6 Test Program.” To meet this requirement each DOC acquisition of IP protocol technology must express requirements for IPv6 capabilities in terms of the USGv6 Profile (i.e., using the USGV6 Capabilities Check List) and vendors must be required to document their product’s support of the requested capabilities through the USGv6 test program (reference http://www.antd.nist.gov/usgv6/) using the USGv6 Suppliers Declaration of Conformity.

· The Contractor shall conform with and apply all technical security controls contained in NIST SP 800-53, Revision 5, Security and Privacy Controls for Federal Information Systems and Organizations as required.

· The Contractor shall work with the Information System Security Officer (ISSO) to provide the necessary documentation required for Government assessment and authorization of the effectiveness of security controls in system components developed under this contract. This shall include but not be limited to documentation of the hardware and software changes needed for the Government to update the System Security Plan (SSP) and the Contingency Plan.

4 DELIVERABLES

The Contractor shall provide the following deliverables:

Description

Quantity/To Whom

Delivery Schedule/Reference

Project Plan and Schedule