AirScopeUI app for iPhone and iPad

AirScopeUI is a full featured user interface to a dual trace Digital Storage Oscilloscope. Whether connected to a companion hardware device or running a set of built-in demo waveforms, AirScopeUI allows users to analyze signals in both the time and frequency domains. Traditional oscilloscope controls provide a familiar interface to select and scale primary scope display parameters. Innovative touch features allow for easy, direct control of display triggering, positioning and on screen measurements. Pinch and zoom capability on the horizontal provide a quick means to see trace details. AirScopeUI has a rich set of on-screen measuring tools for FFT and time domain displays as well as trace memories and the ability to export csv files containing all visible traces.

Please Note: The AirScopeUI app cannot sample "live" signals by itself. A companion hardware unit, purchased separately, is needed for live capture, however this unit has not been released for sale yet. So AirScopeUI will only work with demo waveforms provided (see screenshots for waveform descriptions). Using the demo waveforms AirScopeUI is an excellent trainer for operating digital oscilloscopes and the FFT resources allow users to experiment with how the scope settings affect the FFT trace display as well as seeing the FFT traces for various waveform types.

Features and Highlights:

Input Channels:
10mV/div to 50V/div in 12 Steps
Input Channel Coupling (AC, DC, GND)
Trace Variable Persistence
Trace Averaging
Auto-Ranging Input Setting
Selectable Auto-Measure Display (Vpp, Vave, Vrms, Vmin, Vmax, Freq, Duty Cycle)
Invert Trace

FFT Features:
Auto Peak Labeling (Freq & Level)
Trace Averaging
Trace Variable Persistence
Y-Axis Linear or Log Scaling
Selectable Display Units (V / dB)
Movable Horizontal Reference Line
User Defined Vertical Scale Factor, 0dB Reference and Baseline Value
Pinch Gesture Expand/Contract X Scaling

FFT On-Screen Markers Measurement Panel:
2 Independent Markers (F1, F2)
0dB Reference Setting (Single Marker)
Select Peak Function (Max, Next, Prev)
Level & Frequency Display (per Marker)
Subtract or Divide Marker Values (Level & Frequency)
Manually Position Markers (Tracks Level)

FFT On-Screen Distortion/Noise Measurement Panel:
Adjustable Bandwidth Limiting or Wideband Modes
Low and High End Cutoff Sliders/Text Fields
4 Independent Readouts
Automatic Fundamental Frequency Detection
Automatic Harmonics Detection and Labeling
SNR, SINAD, THD, THD+N and Harmonic Peaks Measurements
Correlated Noise Peaks, Random Noise and All Noise Measurements
Selectable Measurement Units - Vrms, dB, dBV, %, Ratio

Time Domain On-Screen Measurement Panel:
Manual Voltage Measurement (Ch1 or Ch2)
Track Selected Trace Data With Time Cursor
Time Displays (Delta Time and 1/Delta Time)
Sliding Horizontal and Vertical Cursors

Sampling:
Selectable Memory Depth (1024, 2048, 4096, 8192)
Selectable Sampling Rate Multiples (1X, 2X, 4X, 8X)

Trigger:
Drag Screen Cursor For Trigger Point Setting
Fine Trigger Setting Controls (X & Y)
Trigger Source Selection And Trigger Edge
Trigger Mode (Normal or Auto-Baseline)
Single Sweep Mode

Math Function:
Math Function On Input Channels (+ - * /)
Math Trace Variable Persistance
Math Channel FFT

XY Mode:
XY Display Variable Persistence
Independent X & Y Position Control

Trace Memories:
Store Channel 1 & 2, Math And FFT Traces
Clear All Memories Button

Help And Info Displays:
Overlay Help Screen Available During Operation
Help Displays Available For All Visible Objects
Operational Highlights Tutorial Available

Scope Display:
Variable Intensity Graticule
Multiple Graticule Pattern (Standard, Grid, Tick Marks, Hi-Res Grid, Circles)
Selectable Trace Style (Continuous Line, Data Dots)
Lock Individual Traces From X-Axis Panning

Other:
Export CSV File Containing All Visible Traces
Skin Dimmer Controls App Background Intensity
Double Tap Reset To Control Defaults
Snapshot Button (Screen Capture)
Trace Clipping Indicator