Z-match tuner

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Z-match tuner

Z-match tuner

This Z-Match is a link coupled all-band tuner. Two all band tank circuits cover 3-14mhz and 14-30mhz. The tank output links are selected with a very heavy duty SPDT

post 05 Dec 2024

Antenna Transmatch tuner Links →

186

Antenna tuner L for antenne long-fil
This small coupler allows the adaptation of a longwire antenna of twenty meters for use in QRP power less than 25 watts on the 7 MHz band

Antennentuner L-Tuner
Very common among antenna tuners is the Pi circuit, also known as the Collins filter

Accordatore HF 1.8 50 MHZ 100 watt
Per il contenitore ho usato una scatola per montaggi elettrici in pvc tipo gewiss di dimensioni 30x20x6 cm schermandola poi internamente con della comune stagnola

QRO ATU with Dummy Load
QRO ATU / Dummy Load / Power meter intended to be capable of handling the full 400W

Ferrite-shop

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Amateur radio kits by Kanga US

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Simple Rtty codec system based on arduino e android A unit for receiving Rtty transmissions was created, the differences are essentially limited to the Arduino software used

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160M 1/4 Wave Vertical 160m vertical antenna project. It is 100' of Rohn 25G and a 20' aluminum stinger. The base is made out of four 6' power line insulators sandwiched between two Rohn base plates. 7/8' stainless bolts hold the assembly together. 32 radials 50' long and 30 radials 100'

DHD Double Half Delta

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Visual CW Tuning Indicator

Visual CW Tuning Indicator Many transceivers set the CW transmit off-set equal to the set's sidetone frequency. But it was left to the operator how to match incoming signals to the sidetone for one-frequency QSOs an awkward and time-consuming procedure

Convert ADIF to Cabrillo Format

Convert ADIF to Cabrillo Format Have an ADIF file from amateur radio contesting, but the contest you want to enter wants a Cabrillo-formatted file? This is the tool that you need

trap-dipole-7-10-14-18-50-mhz

Trap Dipole 7, 10, 14, 18, 50 MHz Trap dipole 7-10-14-18-50mhz with balun coax cable

Diy Arduino CW keyer

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