SI4732 All Band Full Frequency Radio Receiver, FM AM (MW and SW) SSB (LSB and USB) with Speaker, Antenna, Battery, Black

Works quite well. It's a great way to learn about SDR receivers. Good build quality. Exceeds my expectations. Plan on using it as a receiver for my QRP transmitter projects.

One star because the radio is not recognized by the USB port on the PC. I tried 3 computers, different cables, no joy. I changed the CH340C USB chip, same problem, the USB chip is not recognized by Windows. The radio is a poor performer, a lot of pumping in the audio. The firmware version is 1.1.15 and I was hoping to update it to see if the radios performance improved. BUT IT CAN NOT BE UPDATED!

Works, basically easy to deduce the menus double press, long button press, hold and turn etc. I must be near active transmitters but managed rfi area because I hear plenty of correspondance with the low budget, space constrained BNC telescopic whip antenna. I receive shortwave broadcasts on 7 mhz, 12mhz AM, amateur radio Morse code on 28.007 mhz, 28.015 mhz, etc, suppressed carrier upper sideband voice on 28.354 mhz, etc. Screen is good, small, but concise and updates to your latest command quickly and without flashes or gaps. Don't break those little power switches on the back. Battery charges fast (5 watts) (for an hour) and provides clean lithium four volt power for many perhaps a dozen hours. Speaker good; demodulated cw, usb lsb AM voice audio all demod and produced at speaker good. Small and light and power efficient.

If you are a computer programmer or code writer this is the item for you. All the examples of the radio that I saw mentioned firmware UPGRADES were available. To me "upgrade" means taking an existing, functional thing and improving performance somehow. It also means that some version of firmware is already installed, mine came with zero firmware, version 0.0.0 . If you are old and retired and are buying this to be a casual SW listener, don't waste your money, unless you are a retired computer whiz. UPDATE! I have to say that my initial review was based on a malfunctioning unit. When I discovered it was broken and the was the problem, I returned it for replacement. It all went through slick as snot, Thanks for a easy return process, Amazon! The new unit worked right out of the box and i couldn't be more pleased with it. It does not have a bunch of bells and whistles, but for hobby listening it is perfect for me. Handier than a forked stick. Portable does not even begin to describe it. Battery life is great so far. I am a casual SW listener but it gets five stars from me.

I was not expecting much but it a little better than I expected. Works surprisingly well below 30mhz. FM broadcast leaves a lot to be desired. Audio is much better than I expected. If it could hear better in the FM broadcast band it would be a perfect radio

Really good quality, many bandwidths to work with, good reception. Overall a really good small radio

I had expected to receive a radio with a replaceable Arduino, but it's soldered to the board, so you would need a heat gun repair station to do this. The firmware supplied doesn't allow satisfactory SSB running if ham stations. This is a known problem fixable by a firmware upgrade to a different firmware. But this wasn't possible because the UART +340c) in this radio is apparently defective. None of the 3 windows 10 machines I tried would connect to it. All reported device unknown. Lastly, out of the box, the audio has a constant clicking sound about once a second like a clock. It makes trying to use the radio annoying. I wish I'd looked at this radio sooner and returned it.

Just what I ordered, small, rechargeable, and it works.