WWZMDiBVK-172 USB GPS Dongle Receiver: Compatible with for GPS/GLONASS Positioning System

It works great with the car Android tablet and GPS connector.

Works good for low power ham

Works well as long as you can get a clear overhead. I use it outdoors with a laptop computer to keep UTC time in digital ham radio applications. If you’re indoors, you probably need a USB extension cable to get it near a window. A green flashing LED says you’ve got satellite signals. You’ll need one of the many software applications/apps to translate signals into time/location on your computer.

It can locate 24 GPS satellites, get accurate time, yet still can't deliver longitude and latitude. No amount of configuration changes could fix it. For $10, it's not worth refunding. It made a satisfying sound when it hit the trash can.

Only takes a couple of minutes to find the satellites. I have used this with both a Raspberry Pi and a WindowsPC with no issues what-so-ever.

I wish the antenna was a little better, as it does struggle to get a signal in my house. In fairness though, I have thick plaster walls, with metal mesh in them, so it's not an easy task. Keeping it a few inches away from the walls/ceiling is necessary for it to get a fix, but even then it's a bit hit and miss. I haven't tested it outdoors.

Read about them elsewhere to use as a precise time source so was aware of about how long it would take to go 3D and get a fix. Pretty much plug 'n play, put it on a window sill and it was ready in about 10 minutes. Causes no discernable interferance on short wave. 73 KI4ZUQ

I was initially concerned that there were no instructions. But I plugged it in and it started spitting out NMEA sentences. It was having a bit of trouble getting a good lock on some satellites. So I added a 6 foot USB extension cable and placed it next to a window. Success! Now it has solid lock on all of the GPS constellation. My purpose for buying it was to have an atomic time reference for my FT8 setup. Works like a charm. As a bonus, it knows my Maidenhead grid square to 8 places. I couldn't ask for better.