Hits
A Balanced Balanced Antenna Tuner
As a rule of thumb, a balun should have about 4 times as many reactive ohms as the resistive ohms of the load. This means that for use with a 600ohm balanced load, the balun should have a secondary winding reactance of about 2400ohm
Antenna Transmatch tuner Links →
HF-6M Antenna Tuner Preselector
Frequency range: 2Mc...52Mc 180m band depending on the mismatch of the antenna used and-or maximum inductance. Experimenting with the coils can be desirable
HF Automatic tuner
The atu is composed essentially of relays commanding inductors and capacitors
I built a ZM-2 QRP Antenna tuner
The Emtech ZM-2 Antenna Tuner is a nifty little portable transmatch for QRP
Informationen zum Z-Match Koppler_Selbstbau
The Z-Match coupler is a popular balanced self-assembly coupler. The circuit diagram for the individual components looks like this
186
Frequency range: 2Mc...52Mc 180m band depending on the mismatch of the antenna used and-or maximum inductance. Experimenting with the coils can be desirable
The atu is composed essentially of relays commanding inductors and capacitors
The Emtech ZM-2 Antenna Tuner is a nifty little portable transmatch for QRP
The Z-Match coupler is a popular balanced self-assembly coupler. The circuit diagram for the individual components looks like this
PIC-Keyer This project describes the construction of a real "QRP" keyer with a small microcontroller PIC 16F84, with slightly modified hardware also PIC16F62
RF Inductance Calculator Mean diameter of the air core coil, measured from conductor centre to conductor centre include the wire insulation thickness, if any
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