ANYSECUSF-103 A-SF103 Portable Frequency Counter 2MHz - 2.8GHz for Two-Way Radio Update Version of SF401

This is a excellent Frequency Counter. Very accurate, easy to use and the price is just right... I highly recommend buying this frequency counter for all your radio research needs...

El equipo no ha funcionado desde la recepcio.Le he acercado diferentes tipos de controles remotos y ninguno detecta la frecuencia como lo menciona en la publicidad.

I purchased this to figure out what frequency and lock code my local elementary school admin was using as they coordinate daily pickups from parents and school buses. From more than 50' away, I was able to capture the frequency (they weren't using any tones) and was quickly able to tune my Baofeng UV5R to the frequency. At that point I could hear what they were saying. Doesn't make any difference in the routine, or how I pick up my kids, but it does kill some of the boredom while waiting.Another use that might be of interest... If you've ever been stuck behind a road flagger allowing only one side to go (and you've been waiting forever) you can also listen in to what they're saying....

This thing actually works. I am deducting one star because there is not much of a manual and what you can find online is pretty hard to parse.I think this is a newer model than the black SF401 that you will also find on Amazon. Again, the documentation is scarce and the numbering scheme does not make determining that easy. There is more information on the screen on this model. There seem to be a number of companies putting their name on the same unit so look around. I think I might have paid $20 too much for mine, but I was rewarding this seller for doing a better job of providing photos and info in their description of the device. Also, the cheaper one has a name that makes it sound like a breakfast item at McDonalds (a McBazel). But that's good for a joke among your ham buddies when you pull it out.Thankfully it is mostly intuitive to use. However, I initially thought it would not read DMR transmit frequencies. Then I later figured out how to put it into digital mode. Once it was in digital mode it worked fine. The setting is not in the menu that you are most likely to look for it in. To get to it you have to stop the scanning, and then hit F3. That will let you scroll down (again hitting F3 to scroll) and then toggling Analog/Digital.I am using it to figure out what frequencies a set of DMR radios have been programmed to so I can match other radios to them.

Was a bit skeptical about buying this device because of its low price. But it does work!The SF-103 is geared towards ham radio operators, to allow them to verify that their radio is programmed correctly. For analog, it will show transmit frequency; and if repeater access tones (CTCSS/PL/DCS) are being used, what is being transmitted. For digital transmissions, it will display transmit frequency (although I wish it would also show DMR color code/timeslot - maybe in a future update).The wide 2 MHz-2.8 GHz range means that it will also work in the HF bands for measuring frequency and relative signal strength.The user manual is somewhat lacking and in poor English, but the unit is relatively easy to figure out.