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| Author | Views | Views Today | Rank | Comments |
| 256,922 | 30 | |
326 |
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Here is the schematic, PC board pattern, and parts placement for a low powered FM transmitter. The range of the transmitter when running at 9V is about 300 feet. Running it from 12V increases the range to about 400 feet. This transmitter should not be used as a room or telephone bug. |
Schematic |
PC Board Layout and Parts Placement |
Parts |
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Notes |
Related Circuits |
Comments |
| On which frequency i can pick up the signals. The Q2 transistor happens to be very hot easily. is it normal thatway | ||
| hello,how do i bypass the battery with .01uf capacitor and what its job.thank you from jason | ||
| Just finished mine, its awesome, works perfectly, thx! | ||
| on which frequency i can pick up the signals | ||
| i got the fm transmitter working but it still has a lot of interference. however i am not use a variable cap instead i am using the cyrstal or cap i do not know what its called that you get from a remote for a radio controleld car at 49 mhz and the radio still picks it up and the frequncy on the lcd diplay magicly changes. Weird! if anyone knows whats wrong plz send a email reply or comment back | ||
| the trasmitter is quit simple but i think that more explanations should be given about the circuit connection | ||
| and i can make the antennae as long and tall as necessary and a custom receiver. i just need the signal to be heard clearly and reliably at the other end. I'm also not going to be in the standard radio range. i basically just need ways to make the components take more volts and then push that to the max then make up for whats left with antennae height. Thanks for your help. :) | ||
| What would it take to boost this thing to a range over 8,500 w/o burning out any components? i calculate 255 volts but that would certainly fry almost anything. i was looking for something to take and boost the outgoing FM signal instead but no luck so far. | ||
| im in need of a circuit that will transmit at a distance of 100m for only audio if any one has one that has made into trial and has worked please send it to me i will appreciate. | ||
| How to build simplest FM Receiver ? | ||
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