long range fm transmitter - search results

Several circuits for constructing FM transmitter have been published in EFY. The power output of most of these circuits were very low because no...

As seen in James Bond movies, audio spy bugging devices are used by intelligence agents in different parts of the world. These devices can...

The idea of buying a TFMini LiDAR was to build a radar but for many days nothing really got kicked off and then one...

The circuit presented here uses a crystal oscillator and frequency multiplier to generate a highly-stable carrier signal frequency of 96MHz. With 40mW of RF...

Gas detector systems are mainly used for sensing the presence of gas leaks and then taking an action, such as automatically shutting down the...

Prof Dr Dogan Ibrahim of the Near East University in Cyprus describes the basic principles of gas sensors and shows how a wireless gas...

This article shows you how to build a small radio station at home and share music with others. The station can also be used...

If your car has an FM radio with stereo output but no inbuilt cassette player, this circuit will come handy for listening to your...

Here is a simple low range radio transmitter for transmission up to 25 metres. It is basically an AM modulator whose signal can be...

This multiple appliance keypad control circuit employs DTMF technique to switch on/off up to ten appliances. It can be modified to operate up to...