1333ND21QNB680027 Attachment A- PWS Final.pdf

Transponder Bandwidth on a Geostationary Satellite 1

TRANSPONDER BANDWIDTH ON A GEOSTATIONARY SATELLITE

PERFORMANCE WORK STATEMENT

General Statement of Need The National Institute of Standards and Technology (NIST) has a need to purchase non-preemptible Ku-band transponder capacity on a geostationary communications satellite for a Two-Way Satellite Time and

Frequency Transfer (TWSTFT) network. This network involves phase coded time transfer and data transmissions (1.0 or possibly 2.5 Mchips/s, depending on price) among 18 European and North American

Stations. Note that this is a code division multiple access (CDMA) network and that more than one station will be transmitting simultaneously.

Background NIST is one of the official sources of time and frequency for the United States and international coordination of time and frequency. The Time Realization and Distribution group maintains the primary frequency standards, the time scale, and the transfer operations for the U.S. contribution to the International

Bureau of Weights and Measures. The primary frequency standards for the U.S. is currently our cesium fountain standard, NIST F1. The time scale is a weighted average of, primarily, six hydrogen masers, whose frequencies and linear frequency drifts are regularly measured against the primary frequency standards. TWSTFT is the method for comparing our clocks with standards around the world for our participation in the generation of international atomic time (TAI and UTC).

Objective(s) Acquire the desired transponder bandwidth on a geostationary satellite for TWSTFT with one-year base period and four one-year option periods of renewal. The ability to purchase additional bandwidth for short periods of time (based on available transponder capacity) for testing purposes would be considered desirable.

Scope/General Requirements Three direct links are required: (1) North America to Europe, (2) Europe to North America, and (3) Europe to Europe. Intermediate hops are not acceptable. See Table 1 at the end of this Performance Work

Statement for the locations and characteristics of the TWSTFT stations. All three links must be on the same satellite, which must cover all stations. An example of an acceptable satellite is Telstar 11N at 37.5 degrees

West longitude. Multiple transponders are acceptable. Satellites in inclined orbits will not be considered.

For the Europe to Europe link, there may be up to 14 stations transmitting simultaneously and on the same frequency. For the transatlantic links, there are usually only two stations transmitting at the same time.

Up and down link Ku band frequencies are requested to be in the ranges listed below.

Up link frequency range (North America) - 14.0 to 14.5 GHz.

Down link frequency range (North America) – 10.95 to 12.2 GHz.

Up link frequency range (Europe) – 14.0 to 14.5 GHz.

Down link frequency range (Europe) – 10.95 to 12.5 GHz.

Polarizations will be linear, and the same polarizations for the Europe to Europe link as for the transatlantic links are required (no polarization switching for European stations changing from the Europe to Europe link to the transatlantic link).

Transponder Bandwidth on a Geostationary Satellite 2

For the 1.6 and 1.7 MHz bandwidths (GROUP 1) the minimum satellite requirements are EIRP = 46 dBW and G/T = 2 dBK. For the 3.9 and 4.1 MHz bandwidths (GROUP 2) the minimum satellite requirements are EIRP = 42 dBW and G/T = -6 dBK.

One bandwidth group will be selected for this requirement upon award.

A Quality Control Plan (QCP) will be required.

Tasks/Specific Requirements

Task Number or

Reference

Description Format Quantity Due Date

1.0 Transponder bandwidth on a

geostationary satellite for

TWSTFT

Electronic data transmission

1 See period of performance below

Performance Requirement Summary (for Performance Work Statement)

Desired Output Required Service Performance Standard Monitoring Method

Transponder bandwidth on a geostationary satellite for TWSTFT

Transponder bandwidth on a geostationary satellite for

TWSTFT

(1) All the technical requirements are satisfied;

(2) contract of multiple years is satisfied; and

(3) the payment structure is satisfied.

Contracting Officer’s

Representive (COR) will monitor that transmissions are sent and received by random sampling.

Schedule/Delivery Deliverable Schedule

Deliverable Description Quantity/Media Date Required

1.0 Transponder bandwidth on a

geostationary satellite for

TWSTFT

Electronic data transmission

See period of performance below

Period of Performance

Year Period Start Period End

Base Year May 27, 2021 May 26, 2022

Option Year I May 27, 2022 May 26, 2023

Option Year II May 27, 2023 May 26, 2024

Option Year III May 27, 2024 May 26, 2025

Option Year IV May 27, 2025 May 26, 2026

Transponder Bandwidth on a Geostationary Satellite 3

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Table 1

Station Information

NORTH AMERICA

No. Location Station ID Dish Size (m) Nominal Power (W) Max. Power (W)

1 Boulder, CO USA BRD-01E1 3.7 0.5 1

2 Washington DC USA USNO2-E2 4.5 1 5

EUROPE

No. Location Station ID Dish Size (m) Nominal Power (W) Max. Power (W)

1 Delft, The Netherlands VSL01 2.4 1 5

2 Braunschweig, Germany BRS-02G 1.8 6.3 8

3 Torino, Italy IEN-02K2 1.8 4 4

4 Boras, Sweden SP01 1.8 1.5 8

5 Paris, France PARIS OP01 2.4 0.1 8

6 San Fernando, Spain ROA01 1.8 4 4

7 Lisboa, Portugal LSB-02K3 1.8 4 4

8 Teddington, UK NPL-02G 2.4 0.2 6

9 Bern, Switzerland BEW-01NP 1.8 0.4 4

10 Borowiec, Poland AOS01 2.4 4 8

11 Plateau Calern, France CAUSSOLS OCA01 1.8 4 4

12 Besançon, France BESANCON LTFB01 2.4 0.1 16

13 Fucino, Italy PTF101 1.8 2 8

14 Oberpfaffenhofen, Germany PTF201 1.8 2 8

15 Stuttgart, Germany TIM01 1.8 2 8

16 Kocaeli, Turkey UME0 1.8 2 8