Published on 10/13/2026
Compare imported and Indian-made RF assemblies by the cost and time to obtain accepted units, not only the quoted unit price. Import duty depends on the actual classification, origin and applicable notifications, so a generic coax percentage is not a reliable landed-cost answer.
A lower ex-works quote can become the more expensive option after freight, clearance, inspection and one drawing revision. A local quote can also lose its advantage if it has a different cable construction or acceptance boundary. Compare equivalent specifications first.
This guide provides a calculation framework, not a customs ruling or a claim that domestic sourcing always wins. All example costs are illustrative.
On This Page
| Compare | Required common basis |
|---|---|
| Cable and connectors | Exact construction/interfaces or approved equivalent |
| Length and orientation | Same reference planes, tolerance and drawing revision |
| RF acceptance | Same band, loss and matching limits |
| Inspection/documents | Same coverage, traceability and reports |
| Commercial delivery | Clear Incoterm, destination and included charges |
A quote with nominally similar RG cable, different connectors or a lower test ceiling is not an equivalent purchase. Resolve substitutions and acceptance before calculating savings.
The ICEGATE customs duty calculator provides a service to calculate applicable duty for imported/exported goods. Determine the correct classification and applicable treatment for the actual item with the importer and customs specialist; do not assign a rate from the words RF cable alone.
Check classification, country of origin, assessable value, applicable duties/cesses, IGST, exemptions and any origin documentation. Keep the date and basis of the calculation. The purchase form, components and declared use can matter to classification; this article does not provide a tariff code or a current rate.
| Import-cost input | Who should confirm |
|---|---|
| Classification and rate | Importer/customs adviser using current rules |
| Valuation and freight basis | Importer and logistics documents |
| Origin/exemption evidence | Supplier and applicable customs requirements |
| Tax treatment/credit | Buyer's tax adviser and actual eligibility |
Key idea: Separate tax cash outlay from economic cost. Any credit treatment must be confirmed for the actual buyer and transaction, not assumed from a general business label.
A useful sourcing model adds product cost, freight, clearance, applicable nonrecoverable charges, inspection and expected rework or replacement cost. Divide by accepted units, not ordered units, when comparing quality-adjusted cost. Keep recoverable taxes and cash timing visible separately.
Step 01
Start with the complete delivered scope
Include packaging, insurance where applicable, logistics, required reports and any tooling or nonrecurring charges.
Step 02
Model the actual acceptance outcome
Use observed defect/rework data where available. For an unproven supplier, show a scenario rather than inventing a historical failure rate.
Step 03
Include revision and schedule exposure
Account for prototype changes, replacement freight and engineering time if they are relevant. A low unit price does not repay a missed build milestone automatically.
Specify the loss you can afford, not only the cable name
Send SigmaRF your frequency band, connector interfaces, installed length and insertion-loss target. Every assembly is VNA-swept for VSWR and insertion loss before shipment.
Specify a Custom AssemblySeparate material availability, manufacturing, testing, dispatch, transport, clearance and incoming acceptance. A factory lead time is not the date usable assemblies arrive at the production line. Ask what starts the clock and what approval or payment conditions stop it.
Local assembly may make drawing changes and communication easier, but its materials may still be imported. Imported assemblies may be ready stock or require a custom build. Verify each actual quote rather than treating country as a schedule guarantee.
Read SigmaRF's Coaxial Cable Assembly Cost Drivers, Prototyping to Production and How to Specify a Custom Coaxial Cable Assembly for the technical/commercial handoff. This article focuses on comparing equivalent accepted outcomes.
Illustrative 100-piece comparison in INR. Import option uses a placeholder for verified nonrecoverable import charges rather than a claimed duty rate; taxes and credit treatment require separate confirmation.
Neither option is a real quote and the acceptance counts are scenario assumptions, not supplier quality claims. The example shows why a lower unit price need not produce a lower accepted-unit cost. Replace every placeholder with the actual equivalent-scope evidence.
What is the import duty on RF cable assemblies in India?
It depends on the actual classification, origin, valuation and applicable rules or exemptions. Verify the item-specific calculation through current customs sources and the importer's adviser.
Are Indian-made RF assemblies always cheaper?
No. Compare equivalent specifications and complete accepted-unit cost. Materials, quantity, test requirements, logistics and revision needs can change the result.
Should IGST be included in total cost?
Show the cash outlay and confirm whether credit is available for the actual buyer and transaction. Do not assume the tax treatment from a generic sourcing comparison.
Does local manufacture guarantee shorter lead time?
No. Check component availability and every stage through incoming acceptance. Local assembly may still depend on imported materials.
How do I compare two coax quotes fairly?
Use the same drawing, materials/interfaces, RF limits, inspection coverage, documents and delivery scope. Then calculate landed and accepted-unit cost.
What is TCO for an RF assembly?
It is the relevant total cost of obtaining and using accepted assemblies, including purchase, logistics, qualification, inspection, rework and revision effects where applicable.
Start with equivalent technical scope, then replace every logistics, duty and quality assumption with actual evidence. Keep economic cost, tax cash flow and ready-for-use timing separate so the comparison answers the real sourcing decision.
SigmaRF VNA-sweeps every assembly for VSWR and insertion loss before shipment across its stated 100 MHz to 40 GHz capability range. It has Vadodara volume and Cleveland-area precision facilities, with lead times as short as 2 days for suitable builds. Ask for a quote against your full drawing and acceptance package, not a country-based price promise.
Specify the loss you can afford, not only the cable name
Send SigmaRF your frequency band, connector interfaces, installed length and insertion-loss target. Every assembly is VNA-swept for VSWR and insertion loss before shipment.
Standard AssembliesCustom AssembliesTalk to an Engineer