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QRP-Technology

QCX Zero Beat

LOC:JO51PL      CQ-Zone:14


Extension of the QCX-40m with an internal LED display


My goal was to provide the measurement and display of the SWR, with LEDs, in the case of the QCX.
-   The forward wave is displayed with a blue LED .

-   Starting from a SWR = 1,3:1, the red LED starts at
     light up and then get brighter.


QCX, extended by an internal LED SWR indicator (blue / red)

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o display of the SWR I have used LED with 3mm . The blue LED lights up in the left picture, SWR = 1: 1.Im the right picture both LEDs, e.g. at a SWR = 1: 1.8
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Schaltung

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he LEDs are located on a small board glued to the BNC antenna socket. the board for data acquisition is located under the motherboard and connected to the LED board.
Indikator

Indikator Indikator

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