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Saelig introduces iPhone-based Wi-Fi spectrum analyzer


The Saelig Company ( has introduced the US$199.99 WiPry-Combo, a dynamic power meter and spectrum analyzer accessory for the iPad, iPod touch, and iPhone.

It turns an iOS device into a portable spectrum analyzer and dynamic power meter.  WiPry-Combo brings RF power measurements to a graphical interface to show RF waveforms like an oscilloscope; instead of showing voltage, RF amplitude is displayed on an iOS portable device.  

Actual power output can be triggered, captured, and recorded for protocol verification or for troubleshooting wireless devices. Data is collected at up to 12 MSa/s, allowing analysis and verification of the smallest protocol level on/off times. WiPry-Combo offers data logging in csv format, while screenshot results can be instantly emailed via the iOS host phone.

In its spectrum analyzer mode, WiPry-Combo offers a solution for identifying interference or open channels in the 2.4GHz ISM band, or for identifying unauthorized WiFi access points. Operating in the frequency range 2.400 to 2.495 GHz, it measures signals from -40dBm to +20dBm with an amplitude resolution of 2.0dBm and a bandwidth resolution of 1MHz.  The band sweep time is 200ms.

In its dynamic power meter mode, the device becomes a 100MHz-2.7GHz RF power meter accessory that graphically displays RF power levels.  The graphical interface instantly shows waveform amplitude with respect to time.

Software for running the WiPry-Combo — including a demo package that does not require the actual WiPry device — is available free at the Apple App Store and is available in English, French, German, Italian, and Spanish. WiPry-Combo is compatible with all generations of iPod touch, iPhone, and iPad devices running iOS version 3.1.3 or higher.  

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