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Intro to swr


Intro to swr

Even though this section focuses on CB frequencies, do note that the general concept applies to all transmitters and their associated antennas

post 09 Nov 2024


Swr Meter Links

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Automatic SWR meter
display unit is awesome, especially the possibility, at varying time constant

Automatic SWR meter and semi-automatic tuning unit, F1FRV
With supply 13.8 V, if your SWR bridge detectors output exceeds 11 volts

A long-wave SWR meter
This document describes a simple SWR-meter suitable for long and medium

Basics of SWR
the antenna for a radio is a tuned circuit that provides a load for the transmitter...

Converting ZetaGi HP201 for ham bands
This modification replaces the original CB SWR sensing circuit


PIC-Keyer

PIC-Keyer This project describes the construction of a real "QRP" keyer with a small microcontroller PIC 16F84, with slightly modified hardware also PIC16F62

Qrm Eliminetor

Qrm Eliminetor The principle is based on the fact that the interfering signal from the main antenna coming from the local interfering signal is phase-shifted by means of an auxiliary antenna so superimposed that eliminate the interference

Voice Recorder

Voice Recorder Gestito dall'integrato in questione ed offre la possibilità di registrare più messaggi per una durata massima di un minuto con buona fedeltà di riproduzione