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60-120MHz FM Receiver with AFC – Circuit Schematic
60-120MHz FM Receiver with AFC
We can say in simple words that AFC will lock the receiver to any valid RF signal. Below, we can see a basic block diagram of an receiver. The VCO is mixed with...
2 Transistors Mini MW Transmitter – Circuit Schematic
2 Transistors Mini MW Transmitter
This is a Mini MW (Medium Wave) Transmitter circuit. This circuit consist of combination of transistors SA103 and SA101. Those transistors is used as oscillator...
2.4 GHz Field Strength Meter Circuit with Optional Amplifier – Circuit Schematic
2.4 GHz Field Strength Meter Circuit with Optional Amplifier
Field strength meter is a must have equipment if you`re dealing with radio transmitter electronics. Here is one example of this kind of circuit that works for....
1500 Watt RF Amplifier Circuit – Circuit Schematic
1500 Watt RF Amplifier Circuit
1500 Watt RF Amplifier circuit can be used to drive your transmitter antenna, it can also include driving to the source of the RF high power, microwave heating,...
100W Transmitter RF Power Amplifier 2SC2782 – Circuit Schematic
100W Transmitter RF Power Amplifier 2SC2782
This is a 6m band transmitter RF power amplifier (50 MHz) with 100W output. It used with my FT-736R and drive from 10W for the 6m SSB DX. The Building informati...
Double-Sideband Suppressed-Carrier (DSB-SC) Modulator – Circuit Schematic
Double-Sideband Suppressed-Carrier (DSB-SC) Modulator
When we modulate a carrier signal with amplitude modulation, there will be four frequency components as the result. The first is the modulating signal itself, t...
AM Radio Receiver Circuit – Circuit Schematic
AM Radio Receiver Circuit
AM radio receiver circuit employing FM IC chip as the main component. This AM radio receiver circuit uses hand-wounded coils to tune the frequency at AM bandwid...
SMD FM Transmitter – Circuit Schematic
SMD FM Transmitter
Let`s construct a low-power FM transmitter using surface-mount devices (SMD) that will be received with a standard FM radio. Soldering surface mounted devices i...
RADIO CONTROL CIRCUITS PDF – Circuit Schematic
RADIO CONTROL CIRCUITS PDF
Radio Control Circuits Pdf Manual PDF Download....
RADIO CIRCUIT DIAGRAM – Circuit Schematic
RADIO CIRCUIT DIAGRAM
Radio Circuit Diagram Manual PDF Download....
rx2 circuit – Circuit Schematic
rx2 circuit
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rf circuit diagram – Circuit Schematic
rf circuit diagram
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calradio – Circuit Schematic
calradio
Cal-(IT)2 is developing several generations of general broad application radio/networking test platforms for wireless research and development. CalRadio I is th...
radio circuit diagram – Circuit Schematic
radio circuit diagram
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Making a Valve radio – Circuit Schematic
Making a Valve radio
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Back to qrss – Circuit Schematic
Back to qrss
For some reason, I`m getting back into the universe of QRSS, or very slow Morse code. I goofed around with this for a while, writing some software to record aud...
Schematic for the Micro FM transmitter – Circuit Schematic
Schematic for the Micro FM transmitter
Tetsuo Kogawa`s circuit is pretty well documented, but not in conventional schematic form. I decided to enter it into LTSpice to see what it could make of it, a...
Central heating pipe antenna for SW – Circuit Schematic
Central heating pipe antenna for SW
If you happen to live in a flat with steel central heater pipes and you don`t have the option to make yourself an external antenna, due to e. g. thermal insulat...
DIY FrSky GPS Telemetry Sensor with Logging – Circuit Schematic
DIY FrSky GPS Telemetry Sensor with Logging
Following last year`s rediscovery of radio controlled flight, I`ve recently become enamored with the hacking/mod potential of the downright bargain priced 9-cha...
Antenna Analyzer Progress – Circuit Schematic
Antenna Analyzer Progress
The Anderson Loop is the simplest detector. Most hams don`t refer to it as an Anderson Loop, and I`ve only seen the loop described as such by the folks who pate...