Custom Fiberglass Radome RFQ Checklist: What to Include Before Requesting a Quote
A useful fiberglass radome RFQ needs more than an outside diameter, a photograph and a quantity. Because a radome is both a mechanical enclosure and part of the RF path, the quotation process becomes more accurate when the supplier understands the geometry, frequency range, mounting interfaces, environment and acceptance requirements at the beginning of the project.
Not every parameter has to be finalized before you contact a manufacturer. The goal is to identify what is already known, what is fixed by the antenna or installation, and what still requires engineering review.
Why a Good Radome RFQ Needs More Than Diameter and Quantity
Once the main requirements are available, review our custom fiberglass radome manufacturing capabilities and RFQ inputs before requesting a quotation.
A request such as “600 mm fiberglass radome, 20 pieces” is enough to start a conversation, but it is usually not enough to define a reliable manufacturing quotation.
Two radomes with the same outside diameter can require different materials, wall construction, tooling, mounting features and inspection plans because they operate at different frequencies or in different environments.
The purpose of a good RFQ is therefore not to provide paperwork for its own sake. It is to reduce assumptions before tooling and production decisions are made.
1. Provide a Drawing or Define the Geometry
A 2D drawing or 3D model is one of the most useful inputs in a custom radome RFQ. It helps separate visual appearance from the dimensions and interfaces that actually control manufacturing and assembly.
Overall Geometry
Outside diameter, height, profile, curvature and any restricted installation envelope.
Flange & Mounting
Flange dimensions, bolt circle, hole diameter, inserts and mating-surface requirements.
Openings & Access
Antenna clearance, cable openings, vents, access panels or other functional features.
Split Construction
If the radome is assembled in sections, identify the split location, overlap, joint and sealing concept.
2. Specify the Operating Frequency or Frequency Band
Frequency is one of the most important technical inputs because the electromagnetic behavior of the wall depends on the relationship between wavelength, material properties and wall construction.
If the exact band is known, provide it. If it is not yet finalized, provide the antenna or radar application and the best available operating-frequency information.
This is particularly important because material dielectric behavior and electrical thickness can change with frequency. For background, see our guide to dielectric constant and loss tangent.
3. Include the RF Performance Requirements That Actually Apply
Not every project requires the same RF parameters. The RFQ should identify the criteria that matter to the actual antenna system rather than copying a generic specification.
- Maximum allowable insertion loss, if specified
- Frequency or frequency band
- Polarization
- Expected incidence-angle or scan-angle range
- Phase or pattern requirements, where applicable
- Customer-defined verification or test method
If insertion loss is part of the acceptance requirement, our guide to radome insertion loss explains what the dB value represents and why it depends on the complete structure.
4. Define Wall Thickness and Material Requirements — or State What Is Still Open
Some buyers already have an approved radome design and need the supplier to manufacture to a defined laminate, nominal wall thickness and tolerance. Other projects begin with functional requirements and need the material system to be reviewed during development.
Either approach can work, but the RFQ should make clear which parameters are fixed and which are open for engineering review.
- Specified resin system, if required
- Glass reinforcement or laminate requirement, if fixed
- Nominal wall thickness and tolerance
- Solid laminate or sandwich construction
- Any flame, UV, mechanical or dielectric requirements
Wall thickness should not be selected only from a mechanical perspective. See how radome wall thickness affects RF performance and our overview of RF-transparent materials for radomes.
5. Mounting and Interface Details Are Part of the Product
A radome that looks correct but does not fit the antenna assembly is not a successful part. Mounting interfaces should therefore be treated as controlled engineering features rather than secondary details.
- Flange OD, ID and thickness
- Bolt-hole pattern and bolt-circle diameter
- Threaded inserts or embedded hardware
- Mating-surface requirements
- Openings, cable passages and access points
- Split-section joint and sealing details
- Mounting orientation and clearance constraints
6. Describe the Actual Operating Environment
“Outdoor use” is a useful starting point, but it does not describe the full service condition. A coastal radar installation, a rooftop telecom antenna and an inland industrial sensor may require very different material and surface decisions.
Useful environmental information can include:
- Operating and storage temperature
- Humidity and condensation
- Rain or water exposure
- UV exposure
- Marine or salt-spray environment
- Wind load
- Icing, if relevant
- Chemical or industrial exposure
7. Define Surface Finish and Appearance Requirements
Surface requirements can affect material selection, finishing operations, appearance and outdoor durability. Include the requirements that are actually controlled by the project.
- White, gray or specified color / RAL reference
- Gloss or matte appearance
- Gelcoat or coating requirement
- UV resistance requirement
- Marking, labeling or logo requirements
- Cosmetic acceptance criteria, if applicable
8. State the Testing and Acceptance Criteria Before Quotation
Testing scope can influence tooling, sample planning, documentation, lead time and cost. If a customer requires specific inspection records or specialized testing, it is better to identify those requirements during the RFQ stage.
- Dimensional inspection report
- Wall-thickness inspection
- Visual or surface acceptance criteria
- Material certificates or coupon testing
- RF transmission or insertion-loss verification
- Environmental testing, where applicable
- First Article Inspection or sample approval
- Third-party laboratory requirement, if specified
For a practical overview of these verification methods, see our guide to fiberglass radome testing.
9. Prototype Quantity and Production Volume Matter
Quantity affects more than unit price. It can influence tooling decisions, manufacturing route, inspection planning and the economics of prototype versus repeat production.
Useful information includes:
- Prototype quantity
- First production batch
- Estimated annual demand
- Expected reorder pattern
- One-time project or repeat program
- Target delivery date
10. Include Destination and Packaging Requirements
Larger radomes can be sensitive to packing size, handling and transport method. Providing the destination early helps the supplier consider export packing and practical shipping constraints while reviewing the project.
- Destination country or city
- Preferred shipping term, if already defined
- Air, sea or courier considerations
- Crate, pallet or special protective packaging
- Oversize or handling restrictions
A Practical Fiberglass Radome RFQ Checklist
Before Sending the RFQ, Check What You Already Have
- 2D drawing, 3D model or reference sample
- Overall dimensions and wall thickness
- Operating frequency or band
- RF performance target, if defined
- Material or laminate requirement
- Mounting interfaces and hardware
- Operating environment
- Surface finish and color
- Inspection / test requirements
- Prototype quantity
- Estimated production volume
- Destination and packaging requirement
What If Some Information Is Not Available Yet?
You do not need to have every parameter finalized before contacting a radome manufacturer.
Early-stage projects often begin with an antenna envelope, approximate geometry, operating band and environmental requirement while details such as laminate construction or final mounting features are still being developed.
In that situation, identify which information is confirmed and which areas require engineering discussion. This is more useful than filling gaps with assumptions that may later change.
From RFQ Information to a Manufacturing Review
Once the basic technical and commercial information is available, the manufacturer can review geometry, material options, tooling approach, production quantity, inspection requirements and areas that still need clarification.
For drawing-based OEM projects, review our custom fiberglass radome manufacturing capabilities.
Related Radome Engineering Guides
Fiberglass Radome RFQ FAQs
Do I need a complete 3D model before requesting a radome quote?
No. A 3D model is useful, but a quotation can often begin from a 2D drawing, critical dimensions, photographs or an existing sample. The important point is to identify what dimensions and interfaces are already fixed.
Why does the supplier need the operating frequency?
Frequency affects wavelength, electrical thickness and material behavior. It helps the engineering team understand which wall and material considerations may influence RF transmission.
Should I specify insertion loss in the RFQ?
If your antenna system has a defined insertion-loss limit, include it together with the frequency band and relevant test conditions. If no target has been established, provide the available RF requirements rather than inventing a number.
What if I do not know the best fiberglass resin or laminate?
State the performance and environmental requirements you do know. Material and laminate options can then be discussed during engineering review unless the project already requires a specific approved construction.
Do all fiberglass radome projects require RF testing?
No. Testing scope depends on the application, risk, customer specification and development stage. Some projects may require only manufacturing inspection, while others require coupon, finished-radome or third-party RF verification.
Why should prototype quantity and annual demand be included?
Volume can influence tooling, process selection, inspection planning and unit economics. A supplier can evaluate the manufacturing route more realistically when both prototype and expected production quantities are known.
Conclusion
A strong radome RFQ does not need to be a long specification document, but it should give the supplier enough context to understand the geometry, RF environment, mounting, service conditions and production plan.
Drawings and dimensions define the physical part. Frequency and RF criteria define the electromagnetic context. Environment and surface requirements define the service conditions. Quantity and logistics help determine how the project should be manufactured and delivered.
The more clearly these inputs are separated into confirmed requirements and open questions, the easier it becomes to move from an initial inquiry to a practical engineering review.
Ready to Request a Custom Fiberglass Radome Quote?
Send the information you already have — drawing, dimensions, operating frequency, mounting details, quantity and application requirements. Missing details can be identified during the engineering review rather than guessed in advance.
Review our custom fiberglass radome manufacturing capabilities.
Send Your Radome RFQ