NIORFNIO 15W Fm Transmitter - Bluetooth Wireless Stereo Broadcasting Range 87-108mhz Transmitter, Used in Churches, Cars, Shopping Malls, Lecture Halls, Private Radio Stations

I did a lot of research on these little transmitters before making a purchase. I chose this one over the other "CZE" type transmitters. Granted, it's quite possible that this transmitter has CZE internal parts (they look very, very similar, except for the back panel). However, this one has more features than the CZE boxes, and often at a lesser price. First of all, 15 watts is a lot of power for a little FM transmitter like this. If you're going to use the (inferior) little "rubber ducky" antenna they include with the transmitter, then you might need that power to get the signal to reach the areas you want. I *highly* recommend using a different antenna. Either a dipole, or a ground plane (my personal choice, like the GP100 which you can find here on Amazon). By simply replacing the antenna, you can increase your range by 3x to 5x or more. It is absolutely worth purchasing a separate antenna if you want to reach beyond a block or two. The included antenna simply can't cut it. With one of those separate antennas, and the 15 watts of power form this transmitter, you can easily reach 10 miles or more if you mount your antenna on a rooftop or even a balcony. Next, a note on sound quality. FM radio transmitters do something called "pre-emphasis", meaning it changes the sound before it transmits the signal. Then, the receiving radio does "de-emphasis" to reverse that change. The result gives you a better sound when listening on your radio. If you live outside of the USA, this emphasis is done one way (50μs). But the USA uses a different kind of emphasis (75μs). The end result is that transmitters built to be used anywhere other than the USA produce a more bass-heavy sound. Although this transmitter broadcasts at 50μs, it includes ways to compensate for this by providing some very basic equalization presets. "normal", "pop" "rock" "jazz" "classical" and "bass". Depending on what your program material is, you can use these to tweak the sound which is a great workaround for the pre-emphasis difference if you're within the USA. Ny favorite thing about this transmitter, however, is one key feature that none of the others have. That is, the ability to plug a USB stick into the transmitter and have it automatically loop or shuffle audio files on the USB drive. This allows you to pre-record your program material, plug it in, then set it and forget it. It's not necessary to have a computer or microphone connected to it constantly. If you pre-record your material for whatever reason, it makes this very easy to play back. You can also connect to it via bluetooth if you want to transmit music from your phone, for example, to FM radios within your house or office. It also has basics that the CZE line of transmitters have. Cooling fans (a little noisy but work well with no overheating), and minimal power requirements (you can run the thing for days by hooking it up to a fully charged car battery). Oh, one last comment. You'll see in the description that this transmitter can broadcast RDS signals. RDS is the feature that sends text to your radio. It's how commercial stations send the song title and artist to your radio's display when you're listening to them. While it's true this transmitter will do RDS, the software the manufacture provides - if you can manage to locate it - does NOT work. To even find this software package, you have to do some deep googling. Then once you install and run it (which requires a password that they do not include - which is 123456) the RDS feature doesn't work. The transmitter DOES do RDS, but you have to hunt down a separate free program written by someone else called "JMPX". With this separate program, which is poorly documented by the way but highly functional, you can send RDS text with your program material. You have several choices for these small transmitters. This one is a good mix of ample power, and features. It's the one you want.

After using the NIORFNIO 15W FM Transmitter for an extended period, I can confidently say it's a robust choice for setting up a small radio station or broadcasting over short distances. I used it as a sound source for 8 radios for a theatre piece. It was rock solid. Pros: Impressive 15W output power, providing excellent coverage for local broadcasting Clear sound quality with minimal interference Compact design, making it portable for various applications Good value for the price compared to other transmitters in this range Reliable performance during extended use - I've had it running continuously for six weeks without any issues Cons: Included antenna could be of better quality Instructions could be more detailed for first-time users Heat Management: I was initially concerned about potential heat issues, but I'm pleased to report that I haven't experienced any significant heat generation. The unit has been operating continuously for six weeks without any heat-related problems, suggesting efficient heat management. However, as with any electronic device, proper ventilation is always a good practice. Overall: The NIORFNIO 15W FM Transmitter has proven to be a dependable, powerful option for my theatre broadcasting need. Its ability to operate continuously for extended periods without issues has been particularly impressive. It's an excellent choice for community radio, drive-in events, or small-scale broadcasting. If you're looking for a powerful, budget-friendly FM transmitter that can handle long operating hours, I highly recommend considering the NIORFNIO 15W. It has certainly met and exceeded my expectations.

My initial experience was not great and is described below.... But with patience and correspondence the vendor stood up and made good my purchase Thank you. There is an issue with the fans on these units. They are loud and often malfunction. I own several of these to use with televisions around my house and they work pretty well... a little buzz. The last one I bought had issues with the fan out of the box, but the behavior was erratic at best. When I contacted customer support the first response sounded sincere. But all they ever did was refer me to the manual and eventually sent me a .pdf I have 6 hard copies. I know how to use the thing. When I asked a question not in the manual the question was not even acknowledged. I guess its up to me to replace the fan. On the other 5 the fan runs constantly and a little loud for my taste. But if it doesn't the thing will burn up. In General they work pretty well but not without a little help from you and your soldering iron and your amazon account. Good luck!

This is an excellent little transmitter that does everything it claims to. The range and fidelity are very good, the Bluetooth interface is easy to use, and there are some nice features such as readouts for forward and reflected power, as well as internal temperature. There is also a warning for over-temperature or bad SWR. My only complaints are that there is no setting for 0-6 watt power – the unit produces 0-15 watts, period; and the fan turns on and off constantly, may be a problem when you’re using a mic (cheap condensor mic with 1/8” plug works fine). A 4-page pamphlet in decent English explaining setup and use comes in the package. The PC Control software doesn’t do anything more than the controls on the transmitter face can do, except for allowing a playlist to play automatically; however there is no info on how to do that. Easier to just do the playlist on a tablet or phone and connect with Bluetooth. (Make Bluetooth connection from device to Niorfnio, and then audio from device will be broadcast by transmitter.) If you want to use the Windows PC control software, you need to request the web address from LIDI-US (use the link on the Amazon product page under "Sold by" and use the "Ask a question" button to request the web address to download PC Control Program – email will not go through, but you will still get a response, download is from a Google Drive website). At that website, download both the “NIO PC Control V2.1.rar” and “6W 15W Drivers CP210x_Windows_Drivers.zip” files. Install the x64 version of the drivers. To use PC Control program: connect a USB cable from the transmitter to the PC, start NIO PC Control program, login as Admin (Admin password is count to 6), then click "Connect" button -- you'll see data from transmitter when it connects, and transmitter screen will flash "PC". But for most users all this may be more trouble than it’s worth.

I've had one of these in service for over 8 years in a moderate size urban area. It transmits FM audio from TV RCA jacks so stereo sound is received by tiny RETEKESS FM Stereo receivers and heard on studio-grade headphones for watching TV late at night without disturbing others. Sound in my Sony headphones has plenty of volume and full range HiFi audio to match studio grade equipment. The RETEKESS FM Stereo receivers recharge quite quickly by USB cable, and I keep several of those charged and none have ever failed to work perfectly for long hours of listening. Programming instructions for the receivers were a bit of a challenge due to Chinglish instructions 8 years ago. If you mess up an entry you may need to erase and re-enter it. Again, I have been using mine going on a decade without any issues.

Used this product to broadcast the announcer for an outdoor sporting event. Worked for five days then quit transmitting.

This transmitter seems to be good quality and works just as advertised. Controls and included antenna all good. The frequency is stored and returns next time turned on. Very stable frequency. Included instructions are fairly clear, but I had to use my thinking to follow the menus. I am very well pleased.

I am editing this review due to finding that the problem of sounding overmodulated was with the FM receiver I was listening on, not the transmitter. Yes, the first one I received was definitely bad. When I got it, it locked onto frequency just fine. However, on the second day, it would only lock onto frequencies ranging from 64.0 - 88.1 MHz, which is not a range you can transmit on in the US. On 88.1, if I tried any power over 3 bars with my outside antenna, it alarmed due to high reflective power. I received a replacement promptly from Amazon. The new transmitter locks onto the proper frequency. However, the antenna connector I have to use will not screw down all the way. The looseness doesn't seem to be causing a problem, as it didn't alarm for reflective power. I had it up to 5 bars which I'm guessing is about 9 watts of output power with an antenna 12-15 ft. off the ground. I could pick up the signal fairly well for about 3 miles. I will never leave it at that power, due to a packed FM band that's hard to find a vacant frequency. I didn't even try to go past that. I do like that it has a variable power output, unlike some others on the market. Now, about the transmitter to PC interface. As another reviewer mentioned, I had to contact the seller through this page to request links to download the software. I installed the driver and placed a link to the software on the desktop. On my Windows 11 computer, the driver does not work properly. I grabbed an old laptop that still had Windows 10, and it worked OK. A huge positive I can mention is that the transmitter came configured with the 75uS pre-emphasis standard that's used in North America. That makes the signal sound clearer and less muddy than the transmitters that have the 50uS pre-emphasis which is standard in other countries. The power supply is very noisy! I paused my music to listen to the output during the silence. There's a slight buzz, and A LOT of noise! I noticed on some of the videos that others came with a laptop-style power supply. However, mine came with a "wall wart". I tried another power supply, which resulted in much less noise. Don't use other power supplies unless you know what you're doing! This Niorfnio transmitter sounds pretty good on a car radio. I would recommend it for a hobbyist. It is much too powerful to use as a transmitter to just play mp3s around the house