Circuit Schematic QRP Antenna Tuner

Radio. - This is electronic circuit schematic of QRP Antenna Tuner like in Figure 1 below. In this circuit schematic the basic component used are inductor and capacitors. 

In here we will give you global description about QRP Antenna Tuner and then we will give you link to continue your reading from original source as external website.

Circuit Schematic

Figure 1. Circuit Schematic of QRP Antenna Tuner (Source: Circuitstoday)

Component Part

• Inductor 50uH
• Capacitor 270 pF
• Capacitor 510 pF
• Variable Capacitor 300pF
• SPDT Switch

Description

Circuit schematic like in Figure 1 above is Circuit Schematic QRP Antenna Tuner. Circuitstoday site describe that low power ( 3 to 30 MHz)  transmitters constructed by hams are generally called QRP’s. For such transmitters a well tuned antenna is a must.If the impedance is not properly matched there will be a little or no output.But if properly matched there will be great results.A circuit for matching the antenna properly with the transmitter id given below.

The output of the transmitter is given to the input of the tuner( connector BNC1). The output of the tuner(connector BNC2) must be connected to antenna.Then adjust the L1 and C1 to obtain the maximum transmission power.The transmission power can be checked using a SWR meter.

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