Gino 8M UHF 5M VHF 50Mhz to 2.4Ghz Portable Radio Frequency Counter GY560

This looked like a nice budget frequency counter, but ended up being a waste of money.I did receive my order quickly, and it was cheap, but that's about the only good things I can say.First off, the build quality is mediocre. It looks and feels cheap. Second, mine arrived with the antenna flopping around and not connected to the circuit board. I didn't want to go through the hassle of exchanging this, so being experienced in working on electronics, I soldered the antenna back on myself. Now the unit at least worked (which it didn't when I got it), but it's neither sensitive nor selective. Even with the antenna all the way up and now electrically in the circuit, you have to have it very close to an RF source or it reads randomly. There is no external input jack either.Next complaint, the el-cheapo decision to combine every function into one button. While this sounds feasible on paper, in practice when you try to use the button, it almost always does what you don't want it to do. Just trying to get the display to hold a captured frequency usually results in turning the unit off instead. Trying to select a frequency range is frustrating as the time out for each stop is very fast and it usually takes several tries to get what you want. The display gives no indication of what range you're on either, so you have to remember what you selected or start over. Lastly, the instructions consist of a tiny pamphlet that gives only the most basic instructions.Your money would be better spent on a more expensive unit.

This is an OK little frequency counter. You need to understand how it works, and that it has both digital and analog modes, or you'll think it doesn't work right. Try these instructions:Hold the button down as it powers up and you'll see it slowly cycle through three modes: 200kHz, 1kHz, and 100Hz.Let the button up on 200kHz and you're in 200kHz digital mode. For checking the frequency of digital signals like garage door transmitters. Display says:0.0NoSignalAccurate to the nearest 200kHz. When you tap the button again, it turns the unit off. No Auto-Off in this mode. Will not measure analog signals in this mode.At power on, let the button up on 1kHz or 100Hz to check analog signals to the nearest 1kHz or 100Hz. Tap the button to freeze the display. Tap again to unfreeze. 1 minute Auto-Off. Will not measure digital signals in this mode. Hold the button down to power off.When you turn the unit on with a single tap of the button, it returns to the mode it was in when last used.Don't believe the range.

It apparently was inoperable when it was shipped. When I opened the box, I noticed that the unit was on. When I attempted to measure know frequencies, it would not accurately measure these but instead continue to display the same frequencies when received. It was returned via UPS. I expect to get a credit.

Work well, but batteries were dead.

Wish it would have worked, but I had to return it.

worked great for the price

Stable enough for most projects

Nice, only thing was battery coming with it was zombie!, had to replace after 1st use. I recommened for all with hobbies in radio comunicationsG