原站：http://fmtvguide.blogspot.com/

标签：pll modulator fm filters encoder

“Electronic Transmitter Guide”的内容更新

累计：27 篇（自 2009-07-31 起）

更新：约11篇/年，最后更新863 天前

Electronic Transmitter Guide

Cable-TV Amplifier with 5 Outlets

here's the design of a cable tv distribution amplifier (catv). this cable tv distribution amplifier has 5 outlets. this amplifier boosts the tv cable signal with 18db before the signal is split into 5. the design is based around a mar-6 mmic. this integrated circuit amplifies dc to 2ghz with about 18db, uses only 15ma and costs around 4,5 euro.the cat... (310 天前)

http://inezha.com/w/0y1jiuv

Electronic Transmitter Guide

25W Broadband RF Amplifier 88-108 MHz

this rf amplifier for fm 88-108 mhz with no tune (broadband) needed to cover all the fm band. this rf power amplifier is equiped with the famous mosfet transistor the blf245. depending on the output power level you are able to provide with your fm synthesizer, you can use or not the 2n3866 driver stage included in this amplifier design.impedance mat... (310 天前)

http://inezha.com/w/eo601ua

Electronic Transmitter Guide

Frequency Converter 2.4 GHz to 700 MHz

it's theoretically possible to convert a 2.4 ghz wireless lan signal to a much lower frequency to help overcome non line-of-sight issues. many uhf television frequencies in some areas are currenty unused. those would be great to hijack. you could then use common directional uhf tv antennas for your links. this current design is theory only.it might even... (310 天前)

http://inezha.com/w/rn5q7u7

Electronic Transmitter Guide

Designing RF Filter Faster

how to design rf filter fast? a windows® electrical filter design and analysis program designed to expedite the design of lowpass and highpass filters using standard value components (nearest-5% values). you can view your spectrum analysis filter design.svcfilter™ is a program designed to expedite the design and analysis of lowpass (and highpass) filt... (310 天前)

http://inezha.com/w/nv176u4

Electronic Transmitter Guide

RF Test Probe

like the classic rf probe, this rf test probe is used in conjunction with a high-impedance-input voltmeter or digital voltmeter meter (dvm). what makes this probe unique is?what makes this probe unique is that it's built inside the shell of a regular ol' ballpoint pen. besides being conveniently compact, the unit sports a needle-probe suitable for use i... (310 天前)

http://inezha.com/w/956fluw

Electronic Transmitter Guide

MP3 FM Transmitter Circuit

here's a simple vhf fm transmitter that could be used to play audio files from an mp3 player or computer on a standard vhf fm radio. the circuit use no coils that have to be wound. this fm transmitter can be used to listen to your own music throughout your home. when this fm transmitter used in the car, there is no need for a separate input to the car st... (310 天前)

http://inezha.com/w/bw5d5u1

Electronic Transmitter Guide

RF Power Amplifier 80W 2SC2782

this is a conventional fm rf power amplifier design, using bipolar transistors in a tuned class c circuit. thanks to the use of two stages, the amplifier can be driven to full power with less than 1 watt driving power, so that a large gain margin results in this fm transmitter.bipolar vhf power transistors have a severe affinity for low frequency self- ... (310 天前)

http://inezha.com/w/tp1ei56

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