Published on 10/13/2026
A procurement lead at a US radio company has bought RF cable assemblies from one overseas source for years. A tariff change, a long shipping delay and one lot with high VSWR in the same quarter convince her to qualify a second source. The shortlist includes India. What should she check?
India has a growing electronics and cable assembly base, with skilled technicians, cost-effective labor and supportive manufacturing policy under the Make in India program. The questions for a buyer are the same as anywhere: does the supplier build to your drawing, test every unit, document the result and ship on time?
This guide explains how to evaluate an Indian RF cable assembly supplier, what quality and compliance items to ask for, what changes in logistics, and how a combined India plus USA model reduces risk. It is a buyer's checklist, not a sales pitch. For the RFQ details see our RFQ checklist, and for report content see our test report article.
On This Page
| Reason | What it means in practice |
|---|---|
| Supply diversification | A second source away from a single country or port reduces schedule risk |
| Cost structure | Skilled labor with a lower cost base helps in volume and mid-complexity assemblies |
| Engineering access | English-language drawings, direct engineer contact and time-zone overlap with Europe and Asia |
| Customization | Small and mid-size shops adapt quickly to custom lengths, marking and connectors |
| Policy support | Make in India and related programs encourage domestic electronics manufacturing |
Step 01
Test method
Ask what is tested on every unit. A VNA sweep for VSWR and insertion loss across your band is the right baseline. Continuity alone is not enough.
Step 02
Calibration
Ask how the VNA and cables are calibrated and how often.
Step 03
Process control
Look for documented crimp and solder procedures, torque control and visual inspection of connectors.
Step 04
Traceability
Serial numbers or lot codes linked to test data and to connector and cable lots.
Step 05
First article and sampling
Order a pilot lot, test it on your own VNA, and compare against the supplier data.
At SigmaRF every assembly is VNA-swept for VSWR and insertion loss before shipment, with coverage from 100 MHz to 40 GHz.
| Item | What to request |
|---|---|
| RoHS | Declaration that connectors, cable and plating meet RoHS requirements |
| REACH | Declaration for substances of concern where required in your market |
| Country of origin | Clear marking and documents for customs |
| Certificate of conformance | Statement that the part meets the drawing and the test limits |
| Test report | Plots or data files with limit lines |
| Export controls | Confirm whether your end use needs special handling; ask early |
Air freight from India to the US or Europe typically takes several days door to door for parcel and courier shipments, while sea freight takes weeks and suits bulk orders. Plan for customs paperwork, tariff classification (HS code) and the incoterm: FOB, CIF or DDP changes who pays and who carries risk. Ask the supplier which incoterm they quote and who handles clearance.
Production lead times for standard assemblies can be short. SigmaRF lead times can be as short as 2 days for standard builds. Precision and special-material builds take longer and the date is confirmed at quotation.
A single-country source concentrates risk. A split model uses each location for what it does best: volume and cost-driven assemblies from India, and quick-turn or precision work close to the customer.
| Need | Better fit |
|---|---|
| Volume jumpers and pigtails | India volume facility (Vadodara) |
| Precision, phase-matched or urgent builds | USA precision facility (Cleveland area) |
| Prototype then scale | Prototype in one location, release volume in the other |
Volume buildsPrecision buildsVNA testedCustom lengthsQuick turnDual-source
Are RF cable assemblies made in India good quality?
Quality depends on the supplier's process and test, not on the country. Look for VNA testing on every unit, traceability and documented processes, and verify with a pilot lot.
What is Make in India for electronics?
A government initiative that encourages manufacturing in India, including electronics and components, through policy and incentives.
How do I qualify an Indian RF cable supplier?
Review their test method and calibration, ask for sample VNA data, order a pilot lot, test it on your own equipment, and check compliance documents.
How long does shipping from India take?
Air courier typically takes several days door to door. Sea freight takes weeks. Customs clearance adds time.
Does SigmaRF manufacture in India?
Yes. SigmaRF has a volume facility in Vadodara, India and a precision facility in the Cleveland area, USA.
What compliance documents should I ask for?
RoHS and REACH declarations where needed, certificate of conformance, country of origin and test reports.
Is India cheaper than China for coax assemblies?
Pricing varies by part and volume. Compare landed cost, including freight, duty, lead time and quality, not only unit price.
What is a dual-source strategy for RF cables?
Qualifying two suppliers or locations for the same part so a disruption at one does not stop supply.
Sourcing from India works when you treat it like any qualification: define the spec, ask for measured data, run a pilot lot, and document compliance. A second source in a different region is a practical hedge for any RF program.
SigmaRF combines an India (Vadodara) volume facility with a USA (Cleveland area) precision facility. Every assembly is VNA-swept for VSWR and insertion loss before shipment, 100 MHz to 40 GHz, and lead times can be as short as 2 days.
Qualifying a second source?
Send a drawing and we will quote a pilot lot with VNA data.
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