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RF circuit schematic for hobbies
- Author: Quick Zone
- Listed in: Technology Gadgets
- Tags: antenna transmitters wireless transmitter rf transmitter rf power amplifer rf filters
Recent Posts
RF Amplifier Broadband 88-108 MHz 20W
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 two Philips bipolar transistors : the BLV10 & BLW87. All the impedance networks (Input-Output) of this RF ampl...
RF Amplifier Broadband 88-108 MHz 8W
This RF amplifier for FM 88-108 MHz with no tune (broadband) needed to cover all the FM Band. You need the 2N3866 driver stage to boost properly the BLV10 transitor. All the impedance networks (Input-Output) of this RF amplifier have been determin...
Broadband RF Power Amplifier 1.8-30 MHz
Here's RF Power Amplifier for QRP with low cost. This circuit is a broadband one from 1.8 to 30 MHz, so it is "no-tune" and you need only to regulate the quiescent current bias multiturn trimmer of each Mosfets couple. This means also low efficienc...
Field-Strength Meter
This is a very straightforward field-strength meter circuit. The first stage acts as a crystal receiver. Use a germanium detector diode (like 1N34, but AA119 is much more common in Europe), a silicon one won't do. The frequency is determined by L and...
9 Elements Yagi Antenna 144 MHz
In the amateur radio communications, this Yagi antenna is usually used for long-distance communications, ham are usually first GP without the use of directional antenna contact with each other, and then YAGI antenna at the other location, and then st...
Switchable RF Probe-Watt Meter
This is an unique project is one of the most trusted homemade test instruments to have, once you get your FM transmitter up and running. This simple little device (the Switchable RF Probe-Watt Meter), is capable of finding your FM transmitters : Unlo...
