Post by sennikovkiy on Oct 31, 2019 20:39:20 GMT -6
Hello, please help me with a choice fm transmitter, with MPX input. I know only cheap fm chips BH with MPX input. I use Stereo Tool for generation MPX, and it makes the sound much better(pre-calibrate the transmitter), but from 0 to ~75 hz modulation begins "double up, expand", because of this really affects on the music, especially the electronic music that I listen to.
I have a choice, buy professional fm transmitter(eyes look on FMT5.0 50w, the cheapest with MPX input)and continue to enjoy life, or buy fm transmiter on BH1414K. I'm certainly not rich and I want to save. Who may have a transmitter on board BH1414K can drive a sinusoid across the entire frequency (0-57000 hz) and show me the result as in the video, which laid out here. pls I also saw more power transmitters on BH1418FV, is it worth paying attention to this chip?
Here's what happens to the spectrum when listening to drum and bass, where a lot of bass Sorry for my English
Hello, please help me with a choice fm transmitter, with MPX input. I know only cheap fm chips BH with MPX input. I use Stereo Tool for generation MPX, and it makes the sound much better(pre-calibrate the transmitter), but from 0 to ~75 hz modulation begins "double up, expand", because of this really affects on the music, especially the electronic music that I listen to.
I have a choice, buy professional fm transmitter(eyes look on FMT5.0 50w, the cheapest with MPX input)and continue to enjoy life, or buy fm transmiter on BH1414K. I'm certainly not rich and I want to save. Who may have a transmitter on board BH1414K can drive a sinusoid across the entire frequency (0-57000 hz) and show me the result as in the video, which laid out here. pls I also saw more power transmitters on BH1418FV, is it worth paying attention to this chip?
Here's what happens to the spectrum when listening to drum and bass, where a lot of bass Sorry for my English
I would recommend PCS electronics or NRG PLL PRO. Neither use an all-in-one chip.
Yes, they are a bit more expensive, but you know you are getting quality. When you buy those cheap Chinese transmitters, you don't know what kind of shit they might put out.
I would also make sure you put a low pass filter on your audio. It's possible that the PC itself is putting out high frequency spurs.
Post by sennikovkiy on Nov 2, 2019 17:55:25 GMT -6
I have not seen these transmitters on the Internet, thanks for the links. I do not use any external low-pass filters, only a direct connection. Yes, and this is not necessary for a transmitter with a power of 100 milliwatts, i`m think. Computer noise is heard in silence. ibb.co/MNCNf9B
I have not seen these transmitters on the Internet, thanks for the links. I do not use any external low-pass filters, only a direct connection. Yes, and this is not necessary for a transmitter with a power of 100 milliwatts, i`m think. Computer noise is heard in silence. ibb.co/MNCNf9B
No, I think you misunderstand. Put a low pass filter on the AUDIO INPUT, not for the RF output of the transmitter (with more power its good too).
I think 100 kHz MPX audio filter should be fine. I am not sure you need it though because the problem is probably from the cheap transmitter, but it won't hurt to have it.
I think you need to build it. I can't find it for sale. Maybe don't bother...
Those transmitters are great and PCS makes other ones also if you want to spend less money:
...but the bass response is not as good on this one. You can see they also make boxed transmitters if you want. Just don't buy the STMAX3015. It uses a similar chip as the Chinese.
Hello, please help me with a choice fm transmitter, with MPX input. I know only cheap fm chips BH with MPX input. I use Stereo Tool for generation MPX, and it makes the sound much better(pre-calibrate the transmitter), but from 0 to ~75 hz modulation begins "double up, expand", because of this really affects on the music, especially the electronic music that I listen to.
I have a choice, buy professional fm transmitter(eyes look on FMT5.0 50w, the cheapest with MPX input)and continue to enjoy life, or buy fm transmiter on BH1414K. I'm certainly not rich and I want to save. Who may have a transmitter on board BH1414K can drive a sinusoid across the entire frequency (0-57000 hz) and show me the result as in the video, which laid out here. pls I also saw more power transmitters on BH1418FV, is it worth paying attention to this chip?
Here's what happens to the spectrum when listening to drum and bass, where a lot of bass Sorry for my English
