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144MHz 2m Portable Yagi VHF Beam Antenna
6 elements was chosen, as the boom length is 2m (6.5ft) which keeps it portable, whilst still having good gain
post 10 Aug 2024
Antenna for UHF VHF Links →
La pounder de 144 MHz
the pounder is a directional antenna for the 2-meter band, which provides a theoretical gain of 7.2 dBi and an F / B of over 20 dB
La QUAGI 144mhz 1200 antenne miracle
An 8-element quad antenna is tedious to build, the tiles being awkward to fix on the boom and to manufacture. On the other hand, from 3 or 4 elements, the difference between the quad and yagi fades.
Piccola HB9 per VHF
Costruita con uno scatolato di alluminio, dalle dimensioni di 23,5 X 23,5 millimetri con uno spessore di 1 millimetro
Semplice collineare per i 145 Mhz
La taratura dell'antenna E' semplice, basta spostare i collarini avanti o indietro a seconda delle misurazioni del rosmetro
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the pounder is a directional antenna for the 2-meter band, which provides a theoretical gain of 7.2 dBi and an F / B of over 20 dB
An 8-element quad antenna is tedious to build, the tiles being awkward to fix on the boom and to manufacture. On the other hand, from 3 or 4 elements, the difference between the quad and yagi fades.
Costruita con uno scatolato di alluminio, dalle dimensioni di 23,5 X 23,5 millimetri con uno spessore di 1 millimetro
La taratura dell'antenna E' semplice, basta spostare i collarini avanti o indietro a seconda delle misurazioni del rosmetro
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 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 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