Author Archives: Khanh Nguyen
Network Analyzer Repair: Six Faults and What Must Follow
TL;DR: A vector network analyzer rarely fails outright — it drifts, goes unlevelled or loses...
Spectrum Analyzer Repair: Six Faults and What Each One Means
TL;DR: Most spectrum analyzer repair requests are one of six faults: a power supply that...
Digital Multimeter Repair: Six Faults and What Each One Costs You
TL;DR: A multimeter repair is worth doing when the fault is blown input protection, worn...
Hipot Tester Rental for SEMI S2 and NFPA 79 Safety Assessments
TL;DR: A hipot tester rental for a SEMI S2, NFPA 79 or similar safety assessment...
Environmental Chamber Rental: Specify the Ramp Rate, Not Just the Range
TL;DR: Specify an environmental chamber rental by temperature range and required ramp rate, whether humidity...
EMC Test Equipment Rental: What Has to Ship With the Instrument
TL;DR: EMC test equipment rental is the normal way to run a pre-compliance campaign, because...
Particle Counter Repair: The Pump Is Usually the Problem
Note on particle counters: This page is for general information only. Techmaster does not calibrate...
Calibration vs Verification vs Adjustment vs Repair: What’s the Difference?
TL;DR: Calibration measures against a traceable standard and documents the result. Verification is the pass/fail...
How to Choose Calibration Management Software (8 Features That Matter)
TL;DR: Calibration management software earns its keep past roughly 50 instruments, across multiple sites, or...
EMC Chamber Site Validation: NSA vs. sVSWR and the 3-Year FCC Clock
Site validation proves the chamber behaves like free space; calibration proves the instruments read true....