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BH Specifications. alldatasheet, free, Datasheets, databook. BH data sheet, Manual, BH parts, chips, ic, Electronic Components. application. BH Datasheet, BH PDF, BH Data sheet, BH manual, BH pdf, BH, datenblatt, Electronics BH, alldatasheet, free, datasheet. It adopts a stereo FM IC BH to transmit audio FM signals, and its transmitting .. [3] BH datasheet on [4] Zhang.

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Control BH with a 16f88

You need to try different cables and you need to have a ferrite bead on your cables. I’ve used one of these transmitters going on three seasons and it works great!

The same happens to the FM02 when power is reduced to try to solve the hissing. I know using IC will make it easy,but I think that not using IC will help in understanding many concepts It’s a switching power supply and as such, is probably very, very noisy.

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I was searching about the stereo encoders and got this Has anyone been able to look at the FM02 and determine if what I’ve wondered from the online pictures are vias are actually viable connection points to pin 19, rather than having to solder directly to the IC lead? Crystal Oscillator – Oscillator that uses a crystal to generate a frequency.


We may have to start a new thread if it works. In order to correct this, a proper modulation monitor or O-scope capable of Mhz or more will be needed dataeheet adjust properly.

Where was ground available? Sign up for a new account in our community. Your 12 supply may be a switching supply, but you can tell if it is transformer or switching by the weight. Like I said, probably very datxsheet, but if it’s already been successfully done before, I’m happy to borrow from that experience.

Bh4115 now, being this close to the holiday, let’s enjoy it and tackle the problems in more detail after the holidays.

Analog Layout Finger Size datasheeet. The problem is the 19Khz pilot level on the BH chip. Is there nobody who can answer my question on where to solder the capacitor???

Many thanks to RFBurns for finding an answer to a problem with the FM02 and better still, supplying a fix for it. A soft dataaheet limiter circuit will allow you to keep the FM deviation high for good SNR, but also handle thundering audio passages without bad distortion. It appears to me your problems are in the audio feeding it and not the transmitter itself.

Secure the capacitor with a dab of silicone or putty. Dec 242: Removed one wire at time.

Just trying to be datasgeet and provide some ideas to the issues being posted. As well as the final RF output section, which has NO low pass filter!! Have replaced the audio cable twice now with no success. At least one of them I clicked seemed to be a similar price point as the FM02 and might be a contender for the DIYC community’s affections! Is this crkt going to give me nothing or is it worth trying?


I mean with the dipole it picks up further than I need it too but datashwet like crap. I’m now moving the big screen to hook it up to my home theater pc to see if it has static.

BH Datasheet, BH PDF – Free Datasheets, Wireless Audio Link IC

I don’t have any testers here to see what the unloaded voltage reading is. There was also no ‘defacto-standard’ for datashete DIY community and therefore, any type of common support and enhancements didn’t exist. Regardless of what unit type or make you may have, if it is using the BH FM chip and there is no capacitor installed at Pin 19 and ground, the unit will have noise. I’m a bottom-line, results-oriented guy and I enjoy technology as much as the next person.