The following shows the AM transmitter circuit. The circuit is very simple, and very practical. Recommend Duokanjibian The schematic in order to master...
Veronica 1W FM transmitter is easy to build and to operate in FM. Veronica is also known for frequency stability, clean fm signal and uses no integrate...
Description Using this circuit, audio musical notes can be generated and heard up to a distance of 10 metres. The circuit can be divided into two parts...
A modulated beam of IR light is produced by this transmitter. This circuit can be used for on/off controls or tone (CW) communications. The pot can be ...
Description. Here is the circuit diagram of an FM transmitter using the IC UPC1651. UPC1651 is a wide band UHF Silicon MMIC amplifier. The IC has a bro...
Circuit principle: the multivibrator signal is led out by D2 output. When D2 output is high, the monostable circuit is in a steady state, and D3 output...
4-to-20 ma current transmitter (courtesy Analog Devices, Inc)....
25-watt marine band transmitter. See page258 for parts list,...
Circuit diagram Notes: I have used a pair of BC548 transistors in this circuit. Although not strictly RF transistors, they still give good results. I h...
This article describes the FM sound transmitters. The principle is simple there, we recommend that combine text carefully read the complete schematic. ...
3 Watt FM Transmitter This is the schematic for an FM transmitter with 3 to 3.5 W output power that can be used between 90 and 110 MHz. Stability of th...
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. Circ...
300mW FM Transmitter Here's a long range 300mW FM Transmitter for the 88MHz to 108MHz band. This particular TX is of special interest to those wishing ...
This circuit is discussed in more detain in the Experimenters Journal. The transmitter?s six-inch diameter coil launches powerful magnetic 175KHz ring ...
This transmitter uses two-stage amplifier Q1/Q2 to frequency modulate an NE555 (configured as a VCO) operating at about 50 kHz. The resultant FM-modula...
In 1896, Marconi successfully covered a distance of about 3 km using electromagnetic waves. A little later, he established radio contact across water b...
This transmitter can be used for transmitter hunts, for remote key finding, or for radio telemetry in model rockets. It can be tuned to the two meter b...
5 Watt Transmitter This is a very simple 5 watt CW TX based upon a TTL logic chip. There is just one "tricky" component and this is Cx. This component ...
Resistance temperature sensor(RTD, resistive temperature device)? comes inNTC(negative temperature coefficient) andPTC(positive temperature coefficient...
This is a little transmitter that could be put into a plastic Easter egg. It delivers approximately 1 W of measured rf output into a 50-Ω dummy load, ...
Here's a PLL FM Transmitter using LMX1601, ATtiny2313 or AT90S2313 microcontrollers. The common characteristic of all of the previous low power FM tran...
Using this circuit, audio musical notes can be generated and heard up to a distance of 10 metres. The circuit can be divided into two parts: IR music t...
40mW FM TRANSMITTER The transmitters on my homepage seem to be quite popular, especially those intended for the 88 - 108MHz FM band. I must really conf...
This Field Strength Meter has been specially designed for ourFMbugs. It is capable of detecting very low power transmitters and will assist enormously ...
MC145026/145027 are dedicated remote control encoder / decoder ICs. They can achieve binary or ternary addressing(ternary makes encoding / decoding bec...
KD704/KD705 is a pair of RF remote control transmitter / receiver CMOS LSI specifically designed for electric fans and lights.KD704/705 shape pin map.K...
BUl301F is theinfrared remote control transmit circuit. The Internal circuit is composedof theoscillator frequency device, drive, points, output drives...
If you want to be independent of the local radio stations for testing VHF receivers, you need a frequency-modulated oscillator that covers the range of...
Circuit diagram A very nice simple and useful circuit diagram of an FM transmitter is sown in this schematic . This FM Transmitter software is very sim...
Presented here is a 1.5 Watt FM Transmitter. A transmitter is an installation in which electrical oscillations are generated by an antenna as radio wav...
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