The Broadcast Electronics Online |
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| Country | Indonesia |
| Language | English |
| Owner | bcasthardware |
| Member Since | January 7, 2008 |
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| Tags | fm_transmitter | rf_amplifier rf_filter | transmitter_antenna tv_modulator tv_transmitter |
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Latest Posts on: The Broadcast Electronics Online
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Posted on 1 April 2009 | 6:01 pm
470-580 MHz UHF TV Transmitter
TV transmitter circuit is working on the UHF channell, 470-580 MHz frequency channel 21-34. This transmitter can radiate as far as 30-100 meters by using a cable 10-20 cm. TV transmitter requires supplies voltage of 9-15 Volt. However, you can also use a 9v batteries. This is an important thing to remember for building of the tv ransmitter circ..
Posted on 29 October 2008 | 8:14 pm
VHF Video Transmitter for Camera
This is a simple video transmitter that can radiate as far as 50 meters. This video transmitter can be used with the camera as a source. You can view them on VHF channel analog TV. Supply voltage to the transmitter can use 9V battery. Transistor components that are used for a video transmitter is BC548 or you can use another type of transistor BF1..
Posted on 29 October 2008 | 7:37 pm
RF Spectrum Analyzer
Below is a two part project for an RF Spectrum Analyzer 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.Spectrum Analyzer (Part One)A mong the many measurement tools sought by the amateur experimenter, the most desired but generally considered the least..
Posted on 18 October 2008 | 10:20 pm
Audio Limiter/Compressor for Electret Desk Microphones
This electronic circuit is audio limiter compressor specifically designed to use with very low-cost electret desk microphones. Overcomes the heavy attack/decay problems with diode rectifier VOGAD circuits. A TL074 IC was used with a dual supply of +/-5v Note the lack of rectifier diodes in the feedback loop, instead the circuit uses high gain BC8..
Posted on 24 September 2008 | 12:31 pm