C2 value could be tweaked for achieving even better response from the circuit.Preferably a 10pF could be tried. This circuit can be used as a voice transmitter or audio signal transmitter by adding Encoder and Decoder at receiver we can transmit digital data also. This is because it is a simple circuit and does not have the power and sensitivity to receive the weak signal.You may want to add a voltage regulator to the circuit if you want tuning stability when running from a battery.What should I use as ground in this circuit? Here we are building a wireless FM transmitter which uses RF communication to transmit the medium or low power FM signal. CTRL + SPACE for auto-complete.A platform for enablers, creators and providers of IOT solutions.Career advice and jobs related to electronics and IOT.Great resource for users, buyers & sellers of T&M solutions.Enabling commerce between buyers & sellers of electronics in IndiaEverything you want to know about India's electronics industryEnabling you to benefit from investments in technology The amplification is done by an amplifier, whereas the modulation and carrier signal generation is done by an variable frequency oscillator circuit. Frequency modulation is widely used for FM radio broadcasting.
This gives R5 = (Ve/Ie) = 540 Ohms. You can build it. It is built with 3 transistors: BC109, BFR91A and BFR96S.
What may be problem ??
But when i tested it did not work.
These are FM receiver circuit.
Here we select a 18K resistor.Here we select an electrolyte capacitor of 15 uF, which bypasses the DC signal.Here we require a frequency between 88 MHz to 100 MHz. you can 23 AWG, instead it may be better to check the thickness of the wire…ideally a 0.6 to 0.8 mm thickness works best as per my experience hi sir please tell me every think about 3v transsmiterpraveen, you can try the following circuit, it has a PCB design and all the details regarding the connections.Sir, i want to ask if i can make changes to the electrolitic capacitors in the last circuit, …by the increasing(not reducing) range(nf) of capacitorsTun, Please do not repeat your question more than once…your questions appears at least 25 to 30 times which becomes very disturbing while moderating.there's only one electrolytic capacitor in the last diagram and its value is 1uF…which can be increasedhi SWAGATAM , CONSTRUCT FOR ME A CIRCUIT OF SIMPLE FIELD STRENGTH METER which can measure the freguency radiated by transmit antenna.
Thread starter Hina_Rubab; Start date Oct 15, 2008; Oct 15, 2008 #1 H. Hina_Rubab Newbie level 6. Stereo FM Transmitter using BA1404 IC – This is a stereo FM transmitter circuit using an IC from Rohmm semiconductors named BA1404 – which is a monolithic IC and has a built-in stereo modulator, FM modulator, RF amplifier circuitries. The oscillator circuit generates a signal with a frequency determined by the value of the variable capacitor.