Simple RF Power Meter

Posted on Jul 12, 2012

Many beginners trying out their skill with QRP TX, for the first time have to overcome many problems before they are able to come on the air. On usual complaint is that, every thing is working fine but the signal is not going out. Here is a simple set up which will enable them to measure the out put power of their transmitter. All that they require is a good multimeter which has a sensitivety of 20k ohms/4 Watts which is adequate for low power transmitters. The 8k resistor should be kept close to the out put terminal of the transmitter.

Simple RF Power Meter
Click here to download the full size of the above Circuit.

Leave Comment

characters left:

New Circuits



Popular Circuits

Serial Programmer for AVR microprocessors
PWM Fan Controller schematic
Variable Voltage Regulator
70 MHz Transverter
Computer Off Switch
12 V Florescent lamp driver circuit
Fluid lever sensor circuit design using ac signal
2N2222 NPN Small Signal General Purpose Amplifiers
Linear SuperCap Charger with Current-Limited Ideal Diode and V/I Monitor
Atmel 89C2051 In-Circuit Programmer
Debounced Counter Made From Off-The-Shelf Chips
Emergency lighting circuit diagram
Lamp remote control circuit
220V direct contact means closing circuit