# NX Control — GPR Data Collection

> iPhone/iPad control and display for GSSI NX-series ground penetrating radar systems. (iPhone/iPad app by GSSI Geophysical Survey Systems, Inc..)

- Source: https://appshunter.io/ios/app/nx-control/id6796787363 (this page in markdown: same URL + `.md`)
- Developer: [GSSI Geophysical Survey Systems, Inc.](https://appshunter.io/developer/6796787366)
- Category: Utilities
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 15.0 · 18 MB
- Languages: American English
- Released: 2026-09-02
- Data updated: 2026-09-21
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/nx-control/id6796787363/reviews.md

## What is NX Control?

NX Control turns your iPhone or iPad into the display and control surface for GSSI NX-series ground penetrating radar systems.
Requires a compatible NX-series unit — the app cannot collect data on its own.

COLLECT
- Live 2D radar profiles with distance and depth scales
- Quick Scan for immediate single-line collection
- Survey wheel or time-based triggering

INTERPRET IN THE FIELD
- Place target marks and read exact distance and depth
- Calibrate depth by fitting a hyperbola to a known target
- Tune gain automatically or by hand, with a live gain curve
- Background removal, scan detail, and boost filters

ORGANIZE
- Group scans into projects and areas of interest
- Attach photos to document what you found

## Key features

- Live 2D radar profiles
- Quick Scan for single-line collection
- Target marking with distance/depth
- Depth calibration
- Gain tuning
- Project organization
- Attach photos to scans


## Frequently asked questions about NX Control

### What is NX Control used for?

NX Control transforms your iPhone or iPad into the display and control surface for GSSI NX-series ground penetrating radar systems, enabling data collection and in-field interpretation.

### Does NX Control work without a GSSI NX-series unit?

No, NX Control requires a compatible NX-series unit to function; the app cannot collect data on its own.

### What devices support NX Control?

NX Control is supported on iPhone, iPad, and iPod devices.

### How often is NX Control updated?

NX Control was last updated on 2026-09-02 with version 1.0.0. Future updates will depend on the developer's release schedule.

### What is the age rating for NX Control?

NX Control has an age rating of 4+, making it suitable for a wide range of users.

### Can I organize my data with NX Control?

Yes, NX Control allows you to group scans into projects and areas of interest, and you can attach photos to document your findings.

### Does NX Control have ads?

NX Control is ad-free, allowing for an uninterrupted user experience during data collection and analysis.

### What are the interpretation features in NX Control?

In the field, you can place target marks, read exact distance and depth, calibrate depth by fitting a hyperbola, tune gain, and use filters like background removal and scan detail.

## Version history (last 1 release)

### 1.0.0 — 2026-09-02

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-21.*