B08 W91RUS26QA0350001 - Amendment 01.pdf

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High Power - Low Loss Coaxial Cables
Solicitation number
W91RUS26QA035
Issued by

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This is a Standard Form 30 (SF 30) Amendment of Solicitation/Modification of Contract, Amendment Number 0001, effective 26 JUN 2026. The amendment modifies solicitation W91RUS26QA035, originally dated 22 JUN 2026, issued by the W96QK ACC-APG CONT CT SW SECTOR, ITEC4 CONTRACTING CENTER located at Fort Huachuca, Arizona. The contracting officer is ROSA L. RASCON.

The amendment adds technical requirements for high power, low loss coaxial cables required by EPG (Engineering and Planning Group) for outfitting the Large Arc facility. The cables must feature 3.5 mm male connectors on each end and be ruggedized with neoprene jackets for use in antenna pattern measurement testing at outdoor capacity. Required quantities include: 1x 140-foot, 2x 100-foot, 4x 50-foot, 4x 25-foot, 4x 10-foot, and 2x 6-foot cables. Technical specifications include 50 ohm impedance (±2 ohms), maximum operating frequency of 26.5 GHz, shielding effectiveness exceeding 100 dB up to 18 GHz and 90 dB from 18-26.5 GHz, minimum static bend radius of 0.75 inches, minimum dynamic bend radius of 1.375 inches, and operating temperature range from -65°C to 200°C. Maximum cable attenuation limits are specified across multiple frequency points, ranging from 0.06 dB/ft at 1 GHz to 0.36 dB/ft at 26.5 GHz. Connectors must be standard 3.5 mm male interfaces supporting 26.5 GHz frequency rating, straight-oriented for facility alignment, with standard hex-nut coupling required. The receipt of this amendment must be acknowledged prior to the solicitation deadline to avoid offer rejection.

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B08 W91RUS26QA0350001 - Conformed Copy.pdf PDF
3.5mm-connectors-diag-erf-com.png PNG image
B08 W91RUS26QA035 - RFQ.pdf PDF

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11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers is extended. is not extended.

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended, by one of the following methods:

(a) By completing items 8 and 15, and returning copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or electronic communication which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER.

If by virtue of this amendment you desire to change an offer already submitted, such change may be made by letter or electronic communication, provided each letter or electronic communication makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NUMBER AS DESCRIBED IN ITEM 14.

CHECK ONE A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER

NUMBER IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation data, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor is not is required to sign this document and return copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print) 16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

15B. CONTRACTOR/OFFEROR

(Signature of person authorized to sign)

15C. DATE SIGNED 16B. UNITED STATES OF AMERICA

(Signature of Contracting Officer)

16C. DATE SIGNED

Previous edition unusable STANDARD FORM 30 (REV. 11/2016) Prescribed by GSA FAR (48 CFR) 53.243

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT 1. CONTRACT ID CODE PAGE OF PAGES

2. AMENDMENT/MODIFICATION NUMBER 3. EFFECTIVE DATE 4. REQUISITION/PURCHASE REQUISITION NUMBER 5. PROJECT NUMBER (If applicable)

6. ISSUED BY CODE 7. ADMINISTERED BY (If other than Item 6) CODE

8. NAME AND ADDRESS OF CONTRACTOR (Number, street, county, State and ZIP Code) (X) 9A. AMENDMENT OF SOLICITATION NUMBER

9B. DATED (SEE ITEM 11)

10A. MODIFICATION OF CONTRACT/ORDER NUMBER

10B. DATED (SEE ITEM 13)

CODE FACILITY CODE

SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

Continuation of Description

Miscellaneous text in this section has been modified to:

SALIENT CHARACTERISTICS:

High Power - Low Loss coaxial cables

EPG requires new cables for outfitting the Large Arc facility at various lengths and makes in a high-power low loss coaxial cables with 3.5 mm (male) connectors on each end. Used for antenna pattern measurement in testing at an outdoor capacity. Must be a ruggedized (neoprene- see below length various section) bendable cable to static and dynamic bend radius listed below for use within the Large Arc and mechanical IGUS chain parameters.

Length: Various (Quantity 1) 140' Neoprene ONLY

(Quantity 2) 100' Neoprene ONLY

(Quantity 4) 50' Neoprene ONLY

(Quantity 4) 25' Neoprene ONLY

(Quantity 4) 10' Neoprene ONLY

(Quantity 2) 6' Neoprene ONLY

W91RUS26QA0350001

Impedance: 50 ohm 2 ohms

Maximum Operating Frequency: 26.5 GHz

Shielding Effectiveness up to 18GHz >100 dB

Shielding Effectiveness 18 - 26.5GHz >90 dB

Minimum Static Bend Radius 0.75"

Minimum Dynamic Bend Radius 1.375"

Maximum Cable Attenuation: See table

Operating Temperature range -65C to 200C

Maximum Attenuation Allowable: (decibels per foot)

1 GHz: 0.06 dB/ft.

4 GHz: 0.13 dB/ft.

8 GHz: 0.18 dB/ft.

12 GHz: 0.23 dB/ft.

16 GHz: 0.27 dB/ft.

18 GHz: 0.29 dB/ft.

26.5 GHz: 0.36 dB/ft.

Frequency

(GHz)

Max

Attenuation

(dB/ft.)

1 0.06

4 0.13

8 0.18

12 0.23

16 0.27

18 0.29

26.5 0.36

ADDITIONAL TECHNICAL CLARIFICATIONS:

- Connector Type: The required connectors are standard 3.5 mm (male) interfaces on both ends.

- Frequency Rating: The 3.5 mm connectors must support a maximum operating frequency of 26.5 GHz.

- Orientation: All connectors must be straight to align with the facility's connection points.

- Coupling: Standard hex-nut coupling is required.

IDCode: J
Page: 1
Pages: 5
AmendNo: 0001
EffDate: 26 JUN 2026
ReqNo:
ProjNo:
IssCode: W91RUS
AdmCode:
IssuedBy: W6QK ACC-APG CONT CT SW SECTOR

ITEC4 CONTRACTING CENTER, 61801 ARIZONA STREET RM 3212

FORT HUACHUCA, AZ 85613-5000

UNITED STATES

FELISA COPE, EMAIL: FELISA.M.COPE.CIV@ARMY.MIL TELEPHONE: 520-692-1479

AdminBy:

SCD: PAS:

ContractorNameAdd:
Code:
FacCode:
SolChg: 1
SolNo: W91RUS26QA035
SolDate: 22 JUN 2026
AwardChg: Off
AwardNo:
AwardDate:
Amended: 1
OffrExt: Off
OffrNoEx: 1
NoCopies: 1
ApprData: SEE CONTINUATION
ChgeOrd: Off
ChgeOrder:
Modify: Off
SuppAgre: Off
SuppAuth:
ModOthr: Off
OthrSpec:
NoReq: Off
Require: Off
Copies:
Descript: The purpose of the amendment is to:

14.1. Add the diagram/drawing for reference regarding the physical layout of the cables. It will be attached as a separate document.

14.2. Add additional technical clarifications. See Salient Characteristics.

All other terms and conditions of the solicitation remain unchanged.

ContNameTitle:
CoNameTitle: ROSA L. RASCON
ContDate:
CODate: 26 JUN 2026

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