All Entries in the "RF" Category
Circuit Mini transmitter video assembly instructions – 1 transistor FM transmitter
Instructions, how to build a mini station from cheapest simplest components. Either frequency, modulation, FM (frequency modulation), sends the component values at around 100 MHz Mini Transmitter Instruction Building a super spy bug transmitter. The 20k resistors together with the resistance of the condenser microphone sets a voltage divider composed of the (dc) operating point [...]
How make a wooden FM Transmitter – Circuit FM transmitter mount unusual – a piece of wood – No pcb and solder
In this video we are showing you how to make a FM transmitter Bug using 2 transistors and a wood circuit board. The reason for author make FM transmitter this from wood is because people that can not make there own circuit boards ,can not solder or can not find the capacitor trimmer for adjusting [...]
Circuit of stereo FM transmitter Hi-Fi with IC BA1404 with power stage
With this circuit you will be able to mount a mini stereo FM station and broadcast to your entire home, a simple way to have an audio link wireless with ease. With the FM transmitter BA1404 Hifi Stereo you can stream your music from your iPod MP3, satellite receiver, computer, DVD player, Mobile Phone, MP4 [...]
Wideband DTV UHF Antenna TV Amplifier Circuit using transistor 2sc3358 – Antenna amplifier for digital tv band
This HD TV UHF wideband amplifier(Ultra High Frequency amplifier) has a total gain of 10 to 15 dB in the 400 – 850 MHz domain frequency so it can be used where the tv signal is weak. For this UHF antenna tv amplifier to work correctly you need to cut the components pins as short [...]
28W power RF Amplifier for FM Broadcast 88-108 MHz 2SC1946
This RF Amplifier designed for FM broadcast using a single 2SC1946 VHF Power Transistor. This 10-30W RF amplifier circuit provides an appropriate power boost with an input of 1-3 watt. Tower are 30 meters high will send signal surrounding air should be around 15 km. RF Amplifier Artwork The layout of the 2SC1946 28 Watts [...]
Download PolarPlot V3 free antenna program for amateur radio
PolarPlot V3 became a free program for amateur radio personal use. Antenna software that lets you see what the polar diagram of your rotatable beam actually looks like where it is operating. The program will operate fully for 30 runs during a 15 day period. You can check that it works on your equipment and [...]
Download RadioWORKS 2.0 tool for calculating various items related to radio waves and radio wave propagation
RadioWORKS is a tool for calculating various items related to radio waves and radio wave propagation. Get detailed information about a frequency, such as the free-space wavelength, band classification, propagation methods, common transmitter configurations, etc. Calculate antenna lengths or frequencies. View a 3D coverage map by providing a latitude / longitude coordinate and transmitter height. [...]
Download PI Filter – Designer simple 3 element 50 ohm input and output impedance free qrp home builder series
PI Filter Designer is a simple 3 element 50 ohm input and output impedance pi filter designing application. This program allows the user to design simple lowpass filters by selecting from a variety of standard capacitor values either empirically or to suit what you have on hand. The filter 3 dB cutoff frequency and required [...]
Download Hamic – The Ham Intelligent Calculator
The Ham Intelligent Calculator, also called Hamic, is a program designed to simplify a number of calculations commonly used by Hams. It is designed for the Ham radio hobbyist, but may be useful to others as well. Hamic has a simple to use, but powerful graphical interface that allows solving simple circuits such as resistors [...]
Download AppCAD RF design tools and computerized Application Notes
What is AppCAD? AppCAD is an easy-to-use program that provides you with a unique suite of RF design tools and computerized Application Notes to make your wireless design job faster and easier. AppCAD’s unique, interactive approach makes engineering calculations quick and easy for many RF, microwave, and wireless applications. AppCAD is useful for the design [...]
