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NanoVNA Quick Reference Guide.

NanoVNA Quick Reference Guide & Cheat Sheet

This summary reference sheet compiles all essential NanoVNA controls, display elements, calibration procedures, and measurement formats into a quick visual guide for everyday RF measurements.

Comprehensive NanoVNA-H interface breakdown and menu structure infographic.

📌 NanoVNA Essentials Summary

1. Screen Layout & Status Indicators

  • Top Line: Active trace info (Channel, Format, Vertical scale, Marker values). Inverted color header = Active trace.
  • Left Bar: Calibration status flags (C0...C4 = saved slots; c0 = interpolated; D, R, S, T, X = active error compensations).
  • Bottom Line: Sweep frequency parameters (START, STOP, and frequency step size).

2. Display Formats Quick Guide

  • LOGMAG: Amplitude in dB (Filter attenuation S21 / Return loss S11).
  • SMITH: Complex impedance chart (Antenna tuning & matching).
  • SWR: Standing Wave Ratio (VSWR measurement for antennas).
  • PHASE: Signal phase response (-180° to +180°).

3. SOLT Calibration Checklist

  1. Set sweep range: STIMULUS → START / STOP.
  2. Clear old matrix: CAL → RESET.
  3. Connect standards on CH0 test cable: OPEN → SHORT → LOAD (50Ω).
  4. Calibrate port isolation: ISOLN (CH1 load or open).
  5. Calibrate throughput: Connect CH0 – CH1 cable → THRU.
  6. Save profile: DONE → SAVE 0 (default auto-load profile).

🔍 Quick Smith Chart Calibration Check:

• OPEN connected: Dot on the far-right edge of the center line.
• SHORT connected: Dot on the far-left edge of the center line.
• LOAD connected: Dot right in the geometric center (50Ω).

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