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FM Radio Circuits
FM Radio Circuits
4W FM Transmitter
4W FM Transmitter. TECHNICAL CHARACTERISTICS: Stabilised tendency of catering: Vcc=12~16V Frequency of emission: 88~108MHz Consumption: 100~400mA Materially: The.
AM FM Simultaneous Transmitter Using Digital IC
FM Beacon Broadcast Transmitter (88-108 MHz)
FM Beacon Broadcast Transmitter (88-108 MHz). This circuit will transmit a continuous audio tone on the FM broadcast band (88-108 MHz) which could used for remote control or security purposes. Circuit.
FM Telephone Bug
FM Telephone Bug. Here is a simple transmitter that when connected to a phone line, will transmit anything on that line (execpt the dial tone) to any FM radio. The frequency.
Low Power FM Transmitter
I have had a few inquiries about a low power FM transmitter, and this article should satisfy those who might want to build one. It is designed to use an input from another sound source (such as a guitar or microphone), and transmits on the commercial FM band it is actually quite powerful, so make sure that you select an unused position on the
Sensitive FM Transmitter
Sensitive FM Transmitter. Additional Notes The default for the capacitors type is ceramic, preferably the npo 1% type or equivalent. But basically nothing critical here. Use any.
Transmitter FM 45W with valve
Transmitter FM 45W with valve. TECHNICAL CHARACTERISTICS: Tendency of catering: 220V AC Frequency of emission at FM: 88~108MHz Force of expense: max 45W (without the.
Wireless FM Transmitter
Wireless FM Transmitter. The photo shows a wireless FM transmitter, pocket radio and yellow disk for size comparisons. Speak into the transmitter and others hear you on any FM.
Long range FM transmitter
Long range FM transmitter. The power output of most of these circuits are very low because no power amplifier stages were incorporated. The transmitter circuit described here has an.
200mW High Quality FM Transmitter With TX-200
Here is the latest and abundantly bigger TX200 VFO/VCO FM transmitter. The best able transmitter to date that can be angry into aerial allegiance stereo PLL based 200mW FM transmitter. It is a absolute ambit for transmitting your music about the abode and yard. TX200 uses alone two coils; one in the oscillator and the added one in the 200mW VHF am
Single Chip FM Transmitter Circuit
A simple FM transmitter links your home-entertainment arrangement to a carriageable radio that can be agitated about the abode and into the aback yard. For example, you can comedy music on the CD banker in your active room, and acquire to it on a carriageable radio by the back-yard barbeque. IC1 is a voltage-controlled oscillator with chip varacto
Stereo PLL FM Transmitter With BH1417
This is the latest BH1417 FM Transmitter architecture from RHOM that includes a lot of appearance in one baby package. It comes with pre-emphasis, limiter so that the music can be transmitted at the aforementioned audio level, stereo encoder for stereo transmission, low canyon clarify that blocks any audio signals aloft 15KHz to anticipate any RF
50-300mW FM Transmitter With TX300
50-300mW FM Transmitter With TX300 Electronic Circuit Schematic Wiring Diagram.
Logic Gates FM Transmitter Circuit
Logic Gates FM Transmitter Circuit Electronic Circuit Schematic Wiring Diagram.
Tracking FM Transmitter Schematics Schematic Diagram
FM tracer was prepared using the LM3909 IC and some supporting components. 1. 5V FM trackers This will provide an indicator of revenue sources by providing a signal emitted by the LED. FM tracking uses a source voltage of the battery cell and fruit consumption current is 3. 7 mA. After completion of assembling Tracker FM 1. 5V, then the next...
2 Watt FM Transmitter
The circuit is basically a radio frequency (RF) oscillator that operates around 100 MHz. Audio picked up and amplified by the electret microphone is fed into the audio amplifier stage built around the first transistor. Output from the collector is fed into the base of the second transistor where it modulates the resonant frequency of the tank circ
FM demodulation with RLC circuits applet
Commercial FM demodulation is done at the IF frequency of 10. 7MHz. With a frequency deviation of ±75kHz, the deviation of the IF carrier is ±0. 7%. With this deviation, it is possible to convert the FM to AM or PM and AM using passive RLC circuits. The resulting AM is then demodulated with an envelope detector. Some basic FM demodulators are exam
iPod FM transmiter
Electronics-DIY has instructions on how to build a simple portable FM transmitter that would allow your iPod to broadcast music over radio waves. It is simple to build and fits into a mouse case. It works quite easy, there is a power switch on the bottom to turn it on and tune your radio and transmitter to the right frequency. For the.
Telephone FM transmiter
If you ever wondered how those phone bugs from spy movies work, here is the schematic for your very own. This simple FM transmitter uses a phone line to both power the device and receive the audio signal. Just hook it up to the phone line you want to monitor and tune your FM radio receiver to the transmitting frequency. If you still have a.
LONG RANGE FM TRANSMITTER ELECTRONIC DIAGRAM
Wireless alarm FM transmitter module
There are a lot of alarm systems on the market but you might be inclined to build your own. This little project can be put together using inexpensive parts readily available. The alarm transmitter module allows for a delayed trigger and auto turn-off as it is designed assuming that once the remote alarm has been triggered it will remain on until i
FM wireless transmitters
FM Broadcast Audio Transmitter The circuit consists of a frequency modulated oscillator, an audio preamplifier with pre emphasis to supply the frequency modulating signal, and a buffer amplifier to drive the antenna connector FM radio pirate Introduction to Community Radio Electronics, A Design for a 40W broadband VHF RF Power Amplifier for FM bro
la1800 portable am fm radio circuit
This portable am fm radio circuit is designed using the LA1800 IC and some other external components. As you can see in this circuit diagram the LA1800 manufactured by Sanyo Semiconductors, require few additional components. Also the output signal is driven into earphone speakers, but you can use an additional speaker ( in that case you need t
ta8122 am fm radio receiver electronic project circuit design
A very simple low power AM FM radio receiver electronic projects can be designed using the TA8122 integrated AM FM receiver, manufactured by Toshiba Semiconductor. This radio receiver circuit can be used for portable radio applications or other similar devices. TA8122 radio receiver circuit supports a wide input voltage range from 1. 7 volt up t
tda7088t fm radio receiver circuit
TDA7088 contains a frequency-locked-loop (FLL) system with an Intermediate Frequency (IF) of about 70 kHz. For supplying this circuit we can use an 3 volts battery cell or a regulated power supply.
tda9887 if pll demodulator fm radio circuit
The IC is an alignment-free multistandard (PAL, SECAM and NTSC) vision and sound IF signal PLL demodulator for positive and negative modulation, including sound AM and FM processing. A special function is implemented for the demodulation of FM radio signals (fRIF = 10. 7 MHz).
Simple FM transmitter circuit
A lot of FM transmitter circuits have been already published here. This just another one, a simple two transistor FM transmitter. The first stage of the circuit is a preamplifier stage based on transistor Q1. This is a collector to base biased amplifier stage where resistor R2 sets the collector current and R1 provided the necessary collector to ba
1W FM Transmitter
A very good 1 watt fm transmitter circuit, very easy to build circuit. It has 4 transistors, one is a very stable oscillator, followed by a buffer stage to prevent frequency variation when you adjust the transmitter. Next is a resonance stage and the final stage built with a minimum 1W transistor which must have a heatsink. You must use a LM7805...
1W Long Range FM Transmitter
Long range, very stable, harmonic free, FM transmitter circuit which can be used for FM frequencies between 88 and 108 MHz. With good antenna transmitter can cover 5km range. It has a very stable oscillator because it uses LM7809 voltage regulator which is a 9V stabilized power supply for T1 transistor. Frequency adjustment is achieved by using th
2 Watt FM Transmitter
This 2 Watt FM transmitter will provide 10km range in good weather conditions. Use dipole antenna for maximum range. Transmitter can be tuned between 88-108 MHz with c5. BB204 could be replaced with conventional led (big) with reverse bias (no light given in correct polarity). 9v power for 2km transmission with good sound quality and up to 18v...
500mW Broadcast FM Transmitter
This little broadcast FM transmitter has 500mW of RF output power and runs of 12-15V battery or power supply. DC whose signal modulated by FM using four transistors. Transmitter includes four transmitter stages and draws around 100-150mA of current. Using the values of the circuit components, the frequency will be around 100 MHz but can be...
50mW BH1417 Stereo PLL FM Transmitter
This is an excellent Hi-Fi Stereo PLL FM Transmitter, the audio source can be the computer, sound card, game consoles, CD, DVD, MP3, stereo mixer for stereo audio signal modulated emission transmission, the board also contains two mic amplifier, with the common receiver can achieve high-fidelity FM stereo radio FM stereo transmission. Suitable for
RF Transmitter Circuits
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FM Transmitter Circuits
Ultrasonic distance finder circuit
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is measured. There are three main categories of distance measurement methods in use: a) By...
Simple Metal detector circuit with CD4030
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to find something potentially valuable, hidden a few centimeters below the soil. So many...
Fully automatic watering circuit for flower pots
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This circuit comes as a solution to this problem. Depending on humidity of the pot at...
Simple deep searching metal detector circuit
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the circuit of this metal detector, it is possible to detect a metal coin in depth of 90 to...
Sub-Harmonic Bass Converter for Electric Guitars
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound, such as filtering or distortion. Instead, a frequency division system produces outputs...
Echo Depth Sounding Sonar for Boats
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the calibration of the rope. This arrangement still exists in some yachts. The big...
100W HiFi Audio Amplifier Circuit
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power supply must be symmetrical so that no electrolytic capacitors are needed at the outlet....
Plant-Pot Water Level Indicator Circuit
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower. The circuit of the device is shown in Figure 2. The water detection is made from the bottom...
Analogue Sound Preasure dB-Meter Circuit
The best human ear can capture sounds from 20Hz to 20KHz. These limits are known to be the broadest that can exist. Normally the normal limits range from 100Hz to about 13KHz and depend on the age and health of the individual. We for our measurements and to have a good accuracy we will get the limits of 20Hz to 20KHz. A sound to be heard does...
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