It's actually very small, it would fit in a large pocket, like in cargo pants, without too much trouble. 135x85mm not including the tuning knob or antenna.
They had me at the block diagram:
The radio is based around a Silicon Labs si4734 CMOS radio receiver chip. Just look at all the features you get:
The DSP feature means that on AM and shortwave you can choose between bandwidths of 1, 2, 3, 4 and 6kHz. They really work.
Both knobs, tuning and volume are rotary encoders so there's nothing to get scratchy over time.
The radio runs off 3 AA batteries and can charge them internally via a mini USB socket. When turned on, the radio defaults to a mode where it will run for 90 minutes (selectable) and then turn itself off. This suits me fine as I tend to go to sleep listening to the radio.
Sockets are the USB charging socket (wouldn't it be great if that was a USB audio output!), stereo earphone out (it accepts a long iPhone plug with no problems, and an external antenna socket.
The front panel buttons work well but are a little slow to respond, I suspect keyboard scanning is slow to reduce interference.
Tuning, for a consumer digital radio, is reasonably good. There is some muting as you step frequency but it's not as bad as some I've used.
Sensitivity was equal to or better than the Sangean, but intelligibility was much better on the little PL-310. Side by side, for short wave listening it was much better in my tests. One complaint is that the built in temperature seems a little high to me.
Interestingly, station reception is measured in dBu and dB signal to noise. I'm not quite sure how to interpret this, the station it was tuned to in the first shot above seemed pretty weak but read 15dBu and S/N of 6dB. These readings update only every few seconds and I'd prefer a bar meter or at least an option.
The radio has every other feature you might want, lots of memories, scanning and auto memory setting, clock and alarm. The only thing I miss is side band.
It comes apart easily with six screws. The RF stuff is well shielded and the rest just looks like a pocket calculator with a ferrite rod.
I've used the radio heavily for two days on a set of three 2500mAh NMH batteries, it reported full battery all that time and then suddenly dropped to low. It will operate, and charge, via a USB cable.
Frequency coverage is:
- LW 153-513kHz
- MW 522-1620kHz
- SW 2300-21950kHz
So no 160m I'm afraid. Long wave was disabled by default.