Brand Name Description.pdf

BRAND NAME JUSTIFICATION: SYSTEMS WITH RELIABILITY (SWR) LIMITED

PARTNERSHIP (LP)

The National Reconditioning Center (NRC), located in Grandview, MO is requesting procurement through SWR LP and any of their authorized

United States distributors or resellers.

Basis for Request:

The NRC intends to purchase thirty (30) of the SWR 4-Way RF Power

Dividers. The 4-Way Power Dividers are part of a standardized antenna assembly that the NOAA Weather Radio (NWR) system uses. The NWR is a system whose primary mission is the protection of life and property.

The SWR brand Power Dividers have been through extensive field testing

(qualification and environmental testing) by the National Weather

Service to prove their long term reliability.

This product is proprietary to SWR and there are no suitable substitutes available. The WRX-PD4W-DFNF is required because the power dividers being procured must be the same in form, fit, and function as well as environmentally compatible with the other NWR antenna elements already installed at fielded sites.

Acceptance of any item other than the SWR brand would require additional extensive and expensive testing and qualifications. The

National Weather Service would incur a significant cost to evaluate, validate and implement an alternative to the SWR brand of Power

Dividers.

Technical Requirements:

1. Power Divider Description: WRX power divider, 4 way, equal power distribution, 7-16 DIN female input to (4) type N female outputs.

2. Frequency Range: 162.400 - 162.550 MHz, VSWR: 1.1:1 or better

3. Impedance 50 ohms

4. Power Handling Capacity: 1.1 Kilowatt average RF power rated, 10

Kilowatt power surge capacity, without sustaining damage.

5. Physical Configuration: Cylindrical design based around 1 5/8 inch copper pipe, output ports configured (4) N type female outputs down, towards 7/16 female DIN input on opposite end of tube, (2) stainless steel mounting brackets with galvanized saddle clamps and hardware, for a 1-1/2" to 3-1/2" OD pipe/tower leg included.

6. Maximum dimensions: 27 inches tall by 6 inch outer diameter

7. Maximum weight: 15 pounds

8. Environmental Requirements

a. Weather protection: Power divider shall be completely sealed for full time outdoor operation in all-weather environments, including rain, snow, hail, ice and wind.

b. Operational Temperature Range: -54 to + 105 C

c. Humidity: Shall continue to operate without degradation at

95% Relative Humidity

(Verified per MIL-STD-202F, method 103B, condition B)

d. Shock: Shall survive a 30G shock for 11 milliseconds without damage (Verified per MIL-STD-202F, method 213B, condition J)

e. Vibration: Shall continue to operate without degradation in a

15G sinusoidal vibration environment between 10 and 2000 Hertz

(Verified per MIL-STD-202F, method 204D, condition B)

Additional Information:

The statutory authority for this action is FAR 11.105(a)(1) The particular brand name, product, or feature is essential to the

Government’s requirements, and market research indicates other companies’ similar products, or products lacking the particular feature, do not meet, or cannot be modified to meet, the agency’s needs.

Manufacturers that propose a solution using other than SWR LP and their authorized resellers/distributors must furnish detailed specifications and descriptions to demonstrate their capability to provide the 4-Way Power Dividers that satisfy the Government’s needs.

To be considered, interested parties must be able to demonstrate their ability to provide comparable 4-Way Power Dividers that meets the specific characteristics and technical standards as outlined above.

Capability information shall include, at minimum, name, telephone number, address of customers for which you have previously furnished the 4-Way Power Dividers, and a detailed narrative that describes your ability to provide the 4-Way Power Dividers as specified. Interested parties must respond via email to bryton.curtis@noaa.gov prior to the closing of this notice.

The NAICS code for this requirement is 334220. The government intends to solicit and negotiate with only known sources (SWR LP and their authorized resellers/distributors) that can provide the 4-Way Power

Dividers. The Government reserves the right to solicit quotes based on the receipt of affirmative responses to this posting without further notice. Information received will normally be considered solely for the purpose of determining whether to open competition to manufacturers other than SWR LP and their authorized resellers/distributors.

PLEASE NOTE: All contractors doing business with this Contracting

Office (Eastern Acquisition Division – Kansas City) must be registered with the System for Award Management (SAM) website. Vendors can register with SAM at the following website https://www.sam.gov.