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Z-Match Portable Antenna Tuner
I built the Z-Match in about 3-4 days using available parts. decided I wanted to use my Z-Match for 7-21 Mhz operation so I adjusted the coil L1 to give me that range
post 05 Dec 2024
Antenna Transmatch tuner Links →
Tuner in LC circuit
The tuner is connected to the transceiver via a coaxial cable and a SWR meter. Antenna and earth are connected directly to the tuner
Transmach 1,8 a 30 MHz eñado para las bandas de radio-aficionados
The transmach, is designed for radio-amateur bands, it is recommended, although it does not appear in the circuit, to place a 2.5 mH radio frequency shock at the output
Tuner 1,8-50
Variable capacitors and switch from R-104 BSN block. In the absence of these capacitors, it is possible to use 2 sections, from the transmission radios
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The tuner is connected to the transceiver via a coaxial cable and a SWR meter. Antenna and earth are connected directly to the tuner
The transmach, is designed for radio-amateur bands, it is recommended, although it does not appear in the circuit, to place a 2.5 mH radio frequency shock at the output
Variable capacitors and switch from R-104 BSN block. In the absence of these capacitors, it is possible to use 2 sections, from the transmission radios
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