Module/software make iPhone a spectrum analyzer/ power meter
Made in Taiwan by Oscium, the WiPry-Combo module and software turn an iOS device (iPad, iPod Touch, and iPhone) into an spectrum analyzer and dynamic power meter with a touch interface. Data is collected at up to 12 MSa/s and can be logged in csv format, while screen-shot results can be emailed via an iPhone host.
In spectrum-analyzer mode, the instrument can identify interference or open channels in the 2.4-GHz ISM band (2.400 to 2.495 GHz), or unauthorized WiFi access points. It measures signals from −40 dBm to +20 dBm with an amplitude resolution of 2.0 dBm and a bandwidth resolution of 1 MHz with a 200-ms sweep. As a dynamic power meter mode, the device works as a 100 MHz to 2.7-GHz RF power meter graphically displaying RF power levels. Time scale is adjustable from 2 μs/div to 1 s/div and amplitude display is from −45 dBm to +20 dBm with a resolution of 2.0 dBm.
Display configurations can be saved for on-the-go measurements, and iOS’s two finger “stretch” allows zooming in and out of scaling without the need for buttons or knobs. A demo package that does not require the module is available free at Apple’s AppStore. ($199.95 — available now in the U.S. from Saelig.)
By Richard Comerford
Saelig , Pittsford , NY
Information 585-385-1750
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