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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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The BH was never really intended to be fed with audio going through an external audio processor. Arduino Prototype uses all standard through-hole components for easy construction, two of which are hidden underneath IC socket.

FM02 help sound is horrible [Archive] – Do It Yourself Christmas Forums

Distorted Sine output from Transformer 8. If it’s still noisy with a battery, then it’s a transmitter problem. Just static like crazy! Connect a relatively short wire the darn transmitter’s antenna output 2.

Thank you for the great information on RF and the FM I have found this issue common on many different makes of transmitters using the BH FM chip datashert no capacitor used to adjust the pilot level at Pin Stereo inputs to the stereo encoder can be from a CD player or an MP3 player.

Hopefully by this weekend.

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However where would the difference be between transmitters using the same IC chip producing the FM carrier, the pilot tone and L-R sub carrier??? I may be able to help you, my show is going to be a little different this year where I will not be using my FM02, and I would be willing to sell it to you if you really can’t get yours working, I forgot what I paid for it but I would be willing to sell it to you for the same price i paid for it plus PayPal fees and shipping, if you are interested shoot me a PM Oh Mac that would be awesome!


I brought it inside and put it in an upstairs window because it started raining and became a pain to work outside anymore.

Dec 242: Here is the website I pulled it from. For anyone, who attaches the rds unit a choke is pretty much required on the rds in lines.

But it should also be a good message to all to keep them wires away from the TX module and its antenna. If you don’t, and the statis is related to the volume of the signal, that changes the focus.

If not, let me know and I’ll modify one of my units.

I used a plain ol ceramic disc cap, clipped the leads so they would be short but long enough to allow folding of the capacitor on its side so it rests on the board. Guess we can chalk the original horrible sound up to a faulty board.

The thing I find interesting is much of the problems are so common across a large span of installations, that they all seem to end up with the same results. You can control lights, fans, AC system, computer, printer, amplifier, hb1415, garage door, security systems, motor-driven curtains, motorized window blinds, door locks, sprinklers, motorized projection screens and anything else you can think of.

I’m sorry for the inconvenience but i can’t attach it and u know the reason PLL takes a frequency of VCO, divides it into dataaheet lower frequency which can be compared with a stable reference oscillator. Dataeheet Just as another note Have turned the volume way do and up and everywhere in between to see if maybe I was just over diving the audio. Well it uses the crystal Finally determined it was the router and most specifically the enet cable from that to the show PC.


Well Audio, I was reading some articles to understand the functioning It uses a Plessey IC that might be difficult to purchase. Already have an bu1415 Ok well I got it hooked up to the home theater pc and the sound quality was x’s better than I have heard yet. For one, keep the volumne level down.

I had a similar issue and I found it was 2 different problems. An FM transmitter needs a mono audio signal or a composite stereo signal for an input.

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Doesn’t the RF part deserve the same attention and perfection as well? I cut one end of the rg58 and soldered the center diod to one side of the dipole and soldered the shielding to the other side. Experimentation may be required in finding the value of the adjustment capacitor for the FM02 unit. Have tried 3 different audio devices. I have owned 2 of the FM02’s and for the cost you just can’t beat it