13M Fiber Transmitter Modules for the Fairbanks Command and Data Acquisition Station (FCDAS)

AMENDMENT 0002 (July 22, 2026) The purpose of this Amendment 0002 is to post additional Government responses to vendor inquiries:

1. Vendor Questions & Answers:

Question 3: Is the fiber standard SMF-28 which is dispersion shifted for 1310 nm?

Government Response: Specific fiber sub-model details (such as SMF-28 characteristics) are not available. The station operates across both 1310 nm and 1550 nm.

Question 4: Have they measured the fiber path at 1550 nm?

Government Response: Yes. The fiber path was physically measured on-site to determine the optical loss values.

Question 5: The SITU-3013 requires +/- 5 VDC and +/- 15 VDC. Does the site power setup support these voltage levels?

Government Response: Yes. The site's existing power supply provides +15 VDC, -15 VDC, +5 VDC, and -5 VDC.

Question 6: Is the SIRU-3013 Receiver Module required?

Government Response: No. The SIRU-3013 Receiver Module is not required. The Government is strictly acquiring the SITU-3013 Transmitter Module. ALL OTHER TERMS, CONDITIONS, AND THE OFFER DUE DATE OF AUGUST 03, 2026 AT 3:00 PM EDT REMAIN UNCHANGED. (END OF AMENDMENT 0002) AMENDMENT 0001 (July 21, 2026) The purpose of this Amendment 0001 is to post Government responses to vendor inquiries and clarify site-specific RF technical parameters:

1. Vendor Questions & Answers:

Question 1: What is the required fiber optic cable length?

Government Response: The required fiber optic length is less than 2 km (approx. 2 km).

Question 2: What is the expected optical fiber loss (attenuation)?

Government Response: Expected fiber loss at 1310 nm is approximately 0.5 dB; expected fiber loss at 1550 nm is approximately 0.35 dB.

2. Site RF Technical Parameters:

Operating Frequency Range:

7700 MHz – 8500 MHz Patch Panel Configuration: 4 patch panels utilizing FC/APC optical connectors RF Connectors: SMA connectors Power Requirements: AC Input 90 VAC / 240 VAC; DC Input +15 VDC Operating Environment: Temperature -25°C to +65°C; Humidity ? 90% non-condensing ALL OTHER TERMS, CONDITIONS, AND THE OFFER DUE DATE OF AUGUST 03, 2026 AT 3:00 PM EDT REMAIN UNCHANGED.

(END OF AMENDMENT 0001) The U.S. Department of Commerce, National Oceanic and Atmospheric Administration (NOAA), Acquisition and Grants Office (AGO), Satellite and Information Acquisition Division (SIAD), issues this Request for Quotation (RFQ) No. 1332KP26Q0051 for the procurement of replacement fiber transmitter modules for the Fairbanks Command and Data Acquisition Station (FCDAS) in Fairbanks, Alaska.

This acquisition is conducted under FAR Part 12 (Acquisition of Commercial Products and Commercial Services), utilizing simplified acquisition procedures in accordance with active Revolutionary FAR Overhaul (RFO) class deviations.

SET-ASIDE STATUS: This requirement is a 100% Total Small Business Set-Aside. The North American Industry Classification System (NAICS) code is 334220 (Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing) with a Small Business Size Standard of 1,250 employees.

BRAND NAME ONLY RESTRICTION: In accordance with FAR 13.106-1(b)(1), this requirement is restricted to Brand Name Only for Ortel components. The contractor shall deliver two (2) new brand-name Ortel SITU3013 Fiber Transmitter Modules. The FCDAS baseline architecture is engineered exclusively around proprietary Ortel fiber optic links to deliver X-Band capabilities to the station's 13M antennas. These modules must operate at a nominal 1550 nm wavelength and match existing optical output profiles to integrate seamlessly with downstream telemetry processors without retrofitting or modifications. Alternative brands are non-conforming and will not be accepted.