Methods to Get Touchstone Files to Android
| Source | Transfer Method | Speed |
|---|
| Email attachment (.s2p) | Open email → tap attachment → "Open with RF View" | Instant |
| Google Drive | Drive app → find .s2p → tap → "Open with RF View" | Instant (requires Drive app) |
| Dropbox / OneDrive | Find .s2p in cloud app → Export/Open with RF View | Instant |
| USB cable (PC → Android) | PC: copy .s2p to phone Downloads folder. Android: open in RF View | 30 seconds |
| VNA companion app (Bluetooth) | NanoVNA app → Measure → Share → "Open with RF View" | 10 seconds |
| Manufacturer website | Download .s2p from SimSurfing/Qorvo in Android browser → Open with RF View | 5 seconds |
Opening from the RF View File Browser
- Open RF View app on Android
- Tap the S-Parameter Plot tab (first tab)
- Tap the folder icon (top left of the plot area)
- Android file manager opens — navigate to your file location
- Tap the .s2p file → RF View loads and plots instantly
- The plot shows S11 (default) — tap other S-parameters to switch views
Opening Multiple Files at Once
Method A: Open first file → tap "+" button → select second file
Method B: Long-press first file in picker → select multiple files → Open
→ Up to 8 files load simultaneously with auto color coding
File Doesn't Open? Troubleshooting
| Problem | Cause | Fix |
|---|
| "Cannot open file" | File extension not recognized | Rename .txt to .s2p |
| Garbled data / wrong plot | Wrong data format (MA vs DB) | Use Batch Converter to standardize format |
| File opens but nothing plots | Options line missing or malformed | Add "# GHz S DB R 50" as first non-comment line |
| Frequency axis wrong | Wrong frequency unit in options line | Check: Hz vs MHz vs GHz in options line |
RF View: Supports .s1p, .s2p, .s3p, .s4p in DB/MA/RI formats. Files from any VNA, EM simulator, or manufacturer download open instantly. Free on Android 6.0+.
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