Over on Reddit, there’s a discussion going on about an Android smartphone with some sort of built-in UHF radio (FRS/GMRS). It appears to be a Chinese-made Android phone from Otium called the Otium V8. It’s for sale on Amazon for about $300.
Below is a screenshot from someone asking how it works. The frequency is a shared FRS/GMRS channel (in the U.S). I would expect a radio like this to be “channelized” and not show a frequency directly on the screen — which makes me wonder what other frequencies one might be able to enter…?
Are GSM phones with built-in radios common? Has anyone ever used one of these?
From the screenshot of the built-in PTT app, it looks like it has an adjustable power level, does frequency splits, PL/CTCSS, and even has a narrow/wide bandwidth selection.
What chip are they using to do this? Can it be tweaked with software to transmit/receive “out of range” in the 70cm ham band? I’m curious!