This guide focuses on sourcing 1/2 inch feeder cables (coaxial) via the showroom. Prioritize due diligence; this isn’t a retail purchase, it’s a B2B supply chain decision.
Understanding Specifications: The “1/2 inch” refers to nominal diameter. Critically verify inner conductor size, shielding type (single, double, triple), jacket material (PE, PVC, corrugated), and impedance (typically 50 or 75 ohms) against your system requirements. Don’t assume compatibility. Request detailed datasheets before inquiring.
Supplier Verification – Beyond “Gold Supplier”: Alibaba’s badges are indicators, not guarantees.
Factory Audit Reports: Request recent* (within 6 months) audit reports from reputable third-party inspection companies (SGS, Bureau Veritas). Focus on production capacity, quality control processes, and equipment calibration.
Transaction History: Review supplier’s transaction history specifically* for 1/2 inch feeder cables. Volume and consistent positive feedback are valuable.
Sample Testing: Always* order and thoroughly test samples before committing to a large order. Test for VSWR, loss, and physical durability.
Payment Security: Use Trade Assurance. Never* pay via direct bank transfer without Trade Assurance.