Building Simple FM Transmitter This article shows you how to build a very simple FM transmitter from thirteen components, a Printed Circuit Board (PCB) and a 9v battery.This project was designed to be mounted on a PCB, however you dont ha
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Building Simple FM Transmitter
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How to Make FM Transmitter
How to Make FM Transmitter This tutorial is for making simplest FM transmitter using only one transistor. VC1 is a small, screw-adjustable, trimmer capacitor and its rating should be around 10-100pF. Set your FM receiver for a clear, blank
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iPod FM Transmitter
iPod FM Transmitter Here are instructions for building your own ipod FM radio transmitter. 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 antenna
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Phone Spy Transmitter
Phone Spy Transmitter Here is a very simple telephone broadcaster transmitter which can be used to eavesdrop on a telephone conversation. The circuit can also be used as a wireless telephone amplifier.One important feature of this phone tra
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Long Range FM Transmitter
Long Range FM Transmitter The power output of many transmitter circuits are very low because no power amplifier stages are incorporated. The transmitter circuit described here has an extra RF power amplifier stage, after the oscillator stag
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PLL Exciter
PLL Exciter This is a PLL controller that works with the VCO/Modulator that I designed. Use these two modules together for a complete baseband-capable exciter unit. This PLL controller features a rock-stable crystal controlled reference, in
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Long Range FM Transmitter Circuit
Long Range FM Transmitter Circuit This circuit is a circuit diagram fm transmitter. This circuit is somewhat different from the previous fm transmitter circuit. Transmitter circuit described here has the additional RF power amplifier stage,
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Low Pass Filter For FM 88-108 MHz
Low Pass Filter For FM 88-108 MHz Filter used for eliminate unwanted harmonic frequency at second and third. Notch filter, Band Pass Filter (BPF), and High Pass Filter (HPF) sometime combined in constructing LPF design.Schematic below for F
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FM Transmitter with 2N2218
FM Transmitter with 2N2218 Here's simple FM transmitter circuit using medium power 2N2218 transistor. Micropohone is of electret type that connects to two input terminals and the antenna should be a copper wire from 15 to 40 cm. Below is sc
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8W Broadband FM RF Amplifier
8W Broadband FM RF Amplifier Here's 8W broadband FM RF amplifier using 2SC1971 VHF power transistor. The RF Amplifier PCB layout designed for FM broadband 88-108 MHz transmitters using microstripline technique. This 8W RF amplifier circuit
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Low Power FM Transmitter
Low Power FM Transmitter This low power fm transmitter is designed to use an input from another sound source and transmits on the commercial FM band. This low power fm radio transmitter it is actually quite powerful.The first stage is the o
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Broadcast FM Transmitter
Broadcast FM Transmitter Here's a nice AC mains powered FM Broadcast Audio Transmitter with pre-emphasis, audio level control, and tuning control. The circuit consists of a frequency modulated oscillator, an audio preamplifier with pre emph
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8W PLL Stereo Transmitter with LCD
8W PLL Stereo Transmitter with LCD Very stable PLL FM transmitter based on TSA5511 synthesizer. Frequency is performed with three buttons through PIC16F84 microcontroller. Frequency is displayed on 16x1 LCD. Transmitter oscillator is based
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CB Transmitter
CB Transmitter For the regulation it needs a voltmeter (with needle better) and charge 50W/5W. Connect charge 50W in the place of aerial, with the voltmeter in the exit voltmeter. Be supplied the transmitter with + 12V. It will be supposed
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5 Watt UHF TV Amplifier
5 Watt UHF TV Amplifier This small circuit is a Linear amplifier for driving small UHF TV transmitters. Its gain is 7dB and can amplify a signal between 450-800 MHz. You can drive the circuit with 1 to 1,5 Watts signal. Better use double la
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A Wide Dynamic Range Field Strength Meter
A Wide Dynamic Range Field Strength Meter This unit is an updated version of the Wide Dynamic Range Field Strength Meter. While the basic function is the same, it has several critical differences:It uses a specialized integrated circuit, th
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5 Watts FM RF Amplifier
5 Watts FM RF Amplifier This fm rf amplifier uses 2SC1971 transistor to provide 5 watts of output. Output matching is adjusted via the two 40pF trimmer capacitors likewise also to the input. Note that the emitter of this transistor is direc
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500mW Broadcast FM Transmitter
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 stage
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Coilless FM Transmitter
Coilless FM Transmitter The RF oscillator using the inverter N2 and 10.7Mhz ceramic filter is driving the parallel combination of N4 to N6 through N3.Since these inverters are in parallel the output impedance will be low so that it can dire
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ALTOIDS Tin Part 15 Version FM Transmitter
ALTOIDS Tin Part 15 Version FM Transmitter The transmitter uses 2 MPSH10 (equiv BF494 or NTE229) transistors in a double-ended free-running voltage controlled oscillator (VCO) operating at half the output frequency on each side and combined
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