VHF Pass Notch Duplexer

Amendment / Modification

This amendment addresses two questions from potential bidders:

• Question 1: Regarding MIL-SPEC packaging requirements, the Government stated they are unaware of any such requirements and advised following the manufacturer's suggestion.
• Question 2: Clarification was sought on whether a VHF duplexer with an operating range of -40°C to +60°C would be acceptable, given revised technical specifications requiring operation from -40°C to 80°C. The Government confirmed that -40°C to +60°C is acceptable, provided remaining RF performance requirements are met.

This amendment provides clarifications to technical specifications and packaging requirements.

No changes to proposal deadlines or submission requirements are indicated by this amendment.

Amendment / Modification

This document provides revised technical specifications for a 100W Duplexer. The key changes and specifications detailed are:

• Frequency Range: 144–174 MHz (standard), with some models listed as 144-190 MHz.

• Type: 6-Cavity Pass-Notch (EN Series).

• Isolation (TX-RX): 90 dB / 95 dB Typical; some sources list 80 dB.

• Insertion Loss: 1.5 dB (nominal) to 2 dB maximum.

• Power Input (Max): 100 W.

• Minimum Separation: 3 MHz.

• Connectors: N Female.

• Dimensions (H/W/D): Approximately 3.5" x 19" x 15".

• Weight: Approximately 11-12 lbs.

• Finish: Chem Film.

• Space-Saving Design: Features 3-inch "High Q" cavities to save rack space.

• Field Tunable: Can be tuned to specific TX/RX frequencies.

This amendment revises the technical specifications for the 100W Duplexer.

Bidders should review these revised technical specifications to ensure their proposals accurately reflect the updated requirements for the 100W Duplexer.

Amendment / Modification

This amendment addresses three vendor inquiries:

• Specifications: The government states that revised technical specifications should be consulted regarding the acceptability of alternative equivalent specifications.

• Quantity: The required quantity remains 6, as previously listed on the Bill of Materials.

• Due Date: The offer due date has been extended to May 05, 2025, at 3:00 PM EST.

• Technical specifications (implied by reference to revised specifications).

• Offer due date.

The proposal deadline has been extended to May 05, 2025, 3:00 PM EST.

Form / Attachment / Pricing Sheet

This document is a PDF portfolio that requires Adobe Acrobat X or Adobe Reader X, or later, for optimal viewing. It contains "USDA Security Contract Language."

• The document is a PDF portfolio.
• It contains "USDA Security Contract Language."

Bidders need to ensure they have the appropriate software (Adobe Acrobat X or later) to open and review the "USDA Security Contract Language" which may contain important contractual terms and conditions relevant to the opportunity.

Form / Attachment / Pricing Sheet

This document is a Bill of Materials (BOM) attachment, providing a detailed list of items required for the opportunity. It specifies quantities, units of issue, and potentially unit prices for each line item. Bidders should use this document to understand the specific components and quantities needed for their proposal.

• Line Item Description: Details the specific product or component required (e.g., VHF Pass Notch Duplexer).
• Manufacturer's Part Number/Specifications: Provides the exact part number or critical specifications (e.g., EMR 64536/ENC).
• Quantity (QTY): The number of units required for each item.
• Unit of Issue (Unit of issue): The unit in which the item is measured (e.g., EA for Each).
• Unit Price (UNIT PRICE) & Total Price (TOTAL PRICE): Fields for pricing information, which may need to be completed by the bidder.
• Package Price (PACKAGE PRICE): Another pricing field.
• Shipping Information: Includes the destination unit name (Eldorado NF Radio Shop), address, and contact information for shipping.
• Point of Contact: Provides contact details for the local SAT (Jaylen Chang) and the Project Point of Contact (Cyrus Thomas).

This BOM is critical for bidders to accurately price their proposals. It outlines the specific materials and quantities needed, including a particular item: a VHF Pass Notch Duplexer (144-190 MHz) with a manufacturer part number EMR 64536/ENC, required in a quantity of 6 units. Bidders must ensure their pricing reflects these specifications and quantities. The document also provides shipping and contact information relevant for order fulfillment and communication.

Form / Attachment / Pricing Sheet

This document outlines the minimum technical specifications for a High Power VHF Duplexer required for the USFS Land Mobile Radio system.

• Type: Pass-notch RF duplexer cavity assembly, mountable on a 19" rack.
• Configuration: Assembly consists of one or more vertically mounted cavities.
• Frequency Range: 138-174 MHz.
• Max Power Input: Greater than 340 Watts.
• Frequency Separation: Pass and reject frequencies separated by a minimum of 0.5 MHz or less.
• Insertion Loss: Less than 1.6 dB at minimum separation.
• Channel Isolation: Equal to or better than 70 dB at minimum separation.
• Connectors: N connectors for inputs/outputs.
• Operating Temperature: Maintains characteristics from -40 to 80 degrees C, or better.

This attachment details critical technical requirements for the VHF Duplexer. Bidders must ensure their proposed equipment meets or exceeds these specifications to be considered compliant with the opportunity requirements.

Form / Attachment / Pricing Sheet

This document outlines the Information and Communication Technology (ICT) Accessibility Requirements Statement per Section 508 of the Rehabilitation Act. It details the standards and criteria that ICT procured, developed, maintained, or used by the agency must conform to, specifically referencing the Revised 508 Standards and WCAG 2.0.

• E201 Application Scope: ICT must conform to Revised 508 Standards.
• E202 General Exceptions: Specific exceptions for ICT functions located in maintenance or monitoring spaces.
• E205 Electronic Content: Requirements for public-facing and agency official communication, including emergency notifications, decisions, announcements, notices, acknowledgements, surveys, templates, forms, educational materials, and intranet content.
• E205.4 Accessibility Standard (WCAG 2.0): Electronic content must conform to Level A and Level AA Success Criteria. For non-web documents, specific word substitutions are provided.
• E206 Hardware: Hardware components with user interfaces must conform to Chapter 4 requirements.
• E208 Support Documentation and Services: Support documentation and services for ICT must conform to Chapter 6 requirements.
• E301 General: Chapter 3 requirements apply to ICT as specified.
• E302 Functional Performance Criteria: Details requirements for ICT operation without vision, with limited vision, without perception of color, without hearing, with limited hearing, without speech, with limited manipulation, with limited reach and strength, and for users with limited cognitive, language, and learning abilities.
• Instructions to Offerors: Requires submission of an Accessibility Conformance Report (ACR) using the Voluntary Product Accessibility Template (VPAT) Version 2.1 or later for each ICT item offered. The ACR must detail how the ICT meets Section 508 requirements, describe the approach to universal design, outline plans for non-conforming features, and include typical user scenarios with disabilities.

This document is critical for bidders offering any ICT products or services. It mandates compliance with Section 508 accessibility standards and requires the submission of a detailed Accessibility Conformance Report (ACR) using the VPAT. Bidders must understand these requirements to ensure their proposed solutions meet accessibility mandates and to accurately complete the required ACR, which will be used by the agency to validate conformance claims.

Solicitation / RFP / RFQ

This is a combined synopsis/solicitation for commercial items, issued as a Request for Quotation (RFQ) for VHF Pass Notch Duplexer, 144-190 MHz. The government intends to make one award for this Firm-Fixed-Price (FFP) delivery order.

• Procurement of VHF Pass Notch Duplexer, 144-190 MHz.

• Products offered must meet the technical requirements of the bill of materials.

• Offerors must provide an Accessibility Conformance Report (ACR) for each commercially available Information and Communication Technology (ICT) item, using the Voluntary Product Accessibility Template (VPAT) Version 2.1 or later.

• Delivery of all items is required 60 days after receipt of order.

• Contract Type: Firm-Fixed-Price (FFP), Delivery Order.

• Period of Performance: Not explicitly stated, but delivery is 60 days after order.

• Estimated Value: Not stated.

• Quotations are requested and a separate written solicitation will not be issued.

• Pricing must be provided for all individual line items in Attachment 1 – Bill of Materials.

• Quotes will be evaluated based on the following criteria:

  1. Products offered meet the technical requirements of the bill of materials.
  2. Award will be made on the basis of the lowest evaluated price of a quote meeting or exceeding the acceptability standards for non-cost factors.
  3. Accessibility Conformance Reports (ACRs).

• F.O.B. Destination is requested for all deliverables.

• Offerors must hold prices firm for 90 calendar days from the date specified for receipt of offers.

• This acquisition is set-aside for small business concerns.

• NAICS Code: 334220.

• Small Business Size Standard: 1,250.

• This is a Total Small Business Set-Aside.

• Questions are due no later than April 27, 2026, at 3:00 PM Eastern Time.

• Submit questions via email to corrine.gonzales@usda.gov.

• The following documents are included as attachments: Attachment 1 – Bill of Materials, Attachment 2 – USDA Security Contract Language, Attachment 3 – ICT Accessibility Requirements Statement, Attachment 4 – VHF Duplexer Specifications.

• Federal Acquisition Regulation (FAR) and United States Department of Agriculture Acquisition Regulation (AGAR) Clauses and Provisions are incorporated by reference and set forth herein.

• The USDA Ombudsman Program for Agency Protests (OPAP) is available for protest issues.