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The Dentron AT-3K Antenna Tuner
AT-3K only has a switch position for balance line BAL to feed to an external balun
post 05 Dec 2024
Antenna Transmatch tuner Links →
Homebrew C-L-C QRP Antenna Tuner
His is a C-L-C type tuner with a reflected power indicator. Tuning is done for minimum reflected power. Forward power indicator is omitted because I know the output power of my transceiver anyway
L-Match ATU
After much thought I decided to build a L-Match circuit but with flexibility to match a wide variety of situations.
Modifications to the Single Coil Z Match for 1.8 MHz
The original Z Match circuit modified to include 1.8 MHz. The addition of three fixed capacitors and a 4 position switch gives the whole load resistance range at 1.8MHz
Solar Powered Antenna Tuner
Once the tuner determines the frequency of the RF signal being transmitted, it stores the tuner settings in its non-volatile memory for use in future tuning events
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His is a C-L-C type tuner with a reflected power indicator. Tuning is done for minimum reflected power. Forward power indicator is omitted because I know the output power of my transceiver anyway
After much thought I decided to build a L-Match circuit but with flexibility to match a wide variety of situations.
The original Z Match circuit modified to include 1.8 MHz. The addition of three fixed capacitors and a 4 position switch gives the whole load resistance range at 1.8MHz
Once the tuner determines the frequency of the RF signal being transmitted, it stores the tuner settings in its non-volatile memory for use in future tuning events
PIC-Keyer This project describes the construction of a real "QRP" keyer with a small microcontroller PIC 16F84, with slightly modified hardware also PIC16F62
Radioassistance Radioassistance E Kenwood Dealer, vendita ricetrasmittenti, antenne, parti di ricambio, elettronica
Conrad Electronic Electronic components online shop in German and Italian