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Auto-Couplers


Auto-Couplers

There is little thought about the additional losses within the coupler itself. In fact, the losses through the auto-coupler are usually several times more than a 2:1 SWR would cause through coax

post 30 Sep 2024


Antenna Transmatch tuner Links →

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Accordatore a P-Greco
L'accordatore d'antenna deve essere inteso come qualcosa che aiuta l'antennaquando per forza maggiore ad assumere valori di R.O.S. modesti

Accordatore LC 10m 40m
Agendo sulle due manopole riesco ad accordare tutte le bande comprese tra i 10 e i 40 metri, WARC

Accordatore d'antenna manuale e automatico
Ho sostituito il mio accordatore MT 3000 con un altro da me autocostruito che copre tutte le bande HF, composto da due condensatori comandati mediante motoriduttori e un roller

Accordatore per QRP
L’accordatore e' stato allora utilmente impiegato sui 40 metri - 5 Watt - CW

Accordatore da 0.5 MHz a 30 MHz
Una copertura da 0.5 MHz - 30 MHz continui con qualsiasi antenna


23cm Yagi Antenna building

23cm Yagi Antenna building Finished antenna at 1275 MHz SWR under 1:1.5 at resonant frequency

50 MHz preamp Gain 26dB with the BFG135

50 MHz preamp Gain 26dB with the BFG135 Preamps for 144 and 430 MHz, for 50 MHz, the BFG135a is a cheap transistor and in my view rather strong. It is not easily damaged by static discharge or RF power. FG connection

interface-for-digital-broadcasts-with-integrated-audio

Interface-for-digital-broadcasts-with-integrated-audio 4-port HUB, with a TUSB2046. With port 1 of the HUB we drive the FT232RL; with port 2 the PCM2904, furthermore, we decided to leave ports 3 and 4 free