Broadcast Hardware
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Where Go for Test Equipment Rental
Here is the best place to rent equipment when you do not want to buy it. At TestEquity, they not only strive to provide the best in new and used test equipment, but also the widest variety of purchasing options available. Whether your needs include buying, renting, or leasing equipment, TestEquity h ...
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Small AM Transmitter
Here's a small AM Transmitter you may needed. It/s built into a plastic project box, and uses a piece of perfboard rather than a printed circuit board. Of course, a PCB would have been much more elegant, but designing and making one would have increased construction time by at least five times! ...
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4 Channel Video Mixer Edirol LVS-400
Here's a video mixer LVS-400 from Edirol , It compact, simply-operated 4 channel video switcher is so easy to use, that even without any previous video experience, you can create very professional video transition and key effects for a professional video performance. LVS-400 is ideally suit ...
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Circular Dipole Broadcast Antenna 88-108 MHz
Here's a Circular Dipole Antenna construction for FM broadcast 88-108 MHz. This antenna is made with copper pipes with a diameter of 15 mm. This is a dual antenna type circular polarization Vertical / Horizontal, one of its features is the main penetration, that is to cover urban areas. This Circ ...
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Directional Coupler with RF Filter for 88-108 MHz
Here's Directional Coupler equipped RF filter with bandwidth is wide enough to pass any VHF 87.5 to 108 Mhz, cutoff frequency of 115 MHz being something similar. The harmonic 2 is located at 65 dB and harmonic 3 at 70 dB, to ensure optimum purity of the carrier. The low-pass filter is made in ce ...
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20 dB/150 Watt RF Attenuator
Here is an attenuator schematic for your spectrum analyzer. It's simple, easy and cheap way to make fairly high power RF attenuators. These are useful for directly connecting the output of a high power RF amplifier into a spectrum analyzer, frequency counter or other piece of test equipment (additi ...
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Several Ways to Match Impedance
Most signal generators have an output impedance of 50O. To measure the performance of an FM tuner or to align it, it's best to match this impedance to 75O. Here's the ways. A simple two-resistor minimum-loss pad will do this. Use very short lead lengths to minimize stray inductance and pickup o ...
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Stereo Tool 3.30 for Winamp Plugin
This Stereo Tool application software is a Winamp plugin that delivers professional quality audio processing - for free. Stereo Tool is available in a free and a registered version. The registered version is intended for commercial users of Stereo Tool, especially aimed at FM radio stations. The ...
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5W Chinese PLL FM Transmitter With LCD
Here's PLL FM transmitter circuit from china. This circuit uses the familiar 2SC1971 for final power amplifier stage. Click image below for enlarge the circuit schematic. The PLL controller of the FM transmitter use SAA1057 and PIC16F628 (download HEX file). If want to change the ac ...
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RF Spectrum Analyzer Design
This electronic projets is an RF Spectrum Analyzer design. The sources of projects divided by into two projets and it taken from QST Magazine. Even if you don't build the project there's some great information in here regarding RF filters, mixers, oscillators and more. In part one, described the ...
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Wilkinson Splitter-Combiner Designer
Here's the formula for designing Wilkinson Splitter-Combiner your RF power. You can choose frequency you want and it's not recommended for above 400 MHz. Use it for design your FM Power Splitter-Combiner 88-108 MHz. For design the splitter-combiner you need to measure Capacitances (C1, C2, ...
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TV Transmitter for VHF Low Channel
This transmitter circuit transmits your VCR or camera signal to any nearby TV set with great audio and video quality. Please be aware that this kit is a real transmitter and can be received by others - whether they want to or not! The TV transmitter can be tuned for channel 3-6 (frequency 61.25 ...
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500W Multi-use VHF Power Amplifier Up to 500 MHz
This circuit is 500 watt Multi-use VHF Power Amplifier for frequency up to 500 MHz. This amplifier module incorporates microstrip technology and a single BLF369 mosfet transistor. Input/Output 50 ohms and Power out 500W minimum with a 3 to 5 watt input. Power Supply requirements 22.5 Amperes 32 volt ...
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AM Stereo Decoder with MC13208AP
The MC13028A is a third generation CQUAM stereo decoder targeted for use in low voltage, low cost AM/FM E.T.R. radio applications. Advanced features include a signal quality detector that analyzes signal strength, signal to noise ratio, and stereo pilot tone before switching to the stereo mode. A ...
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80 Watt FM Stereo Transmitter
This transmitter circuit was designed from the ground up to provide very high sound quality, coupled with excellent frequency stability, reliability, etc. It can be used as a standalone transmitter to serve a medium-sized town, or as an exciter to drive a kilowatt-class power amplifier to serve a la ...
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PIC FM Stereo Encoder
This application circuit is a digital analogue processed stereo encoder that combines the best from both domains to provide high-quality and easy to build device. The sampling frequency used in this stereo encoder is 97 times higher than the pilot tone frequency. This makes very easy to reject all s ...
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AM Stereo Decoder with MC13208AP
The MC13028A is a third generation CQUAM stereo decoder targeted for use in low voltage, low cost AM/FM E.T.R. radio applications. Advanced features include a signal quality detector that analyzes signal strength, signal to noise ratio, and stereo pilot tone before switching to the stereo mode. A ...
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What is AM Stereo?
AM Stereo is the technology that allows AM radio stations to broadcast with high-fidelity Stereophonic sound, far exceeding the quality normally associated with regular monaural AM radio. AM Stereo provides clear full-dimensional Stereo sound that envelops the listener with fidelity usually thought ...
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1KW Mosfet FM Amplifier Service and Operating Manual
High gain MOSFET transistors and systematic use of state-of-the-art manufacturing methods, have helped us to find effective solutions for the design of this new equipment. The amplifier, of simple and rugged construction, is able to satisfy the requests of all those end-users looking for top-quality ...
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40 MHz Garage Door Opener Transmitter
This electronic circuit is the newer and revised version of the garage door opener transmitter. The transmitter is a PIC based on 40 MHz Microchips 16F630 microcontroller. A 10 switch DIP-switch is used for setting the code. To save space, we used a different HF output coil.More about circuit Schem ...
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