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A Hairpin match for the 5 ele Tonna for 50 MHz


A Hairpin match for the 5 ele Tonna for 50 MHz

By changing the impedance of the driven element to 200 Ohms, it is possible to use a 1:4 halfwave balun to match the antenna properly and to make sure that the symmetry is also properly taken care of

post 17 Aug 2024


Antenna 6 meter Links

102



The mighty wide six metre dipole
Simple 50 ohm coaxial feed design, no Antenna Tuning Unit required, Wide Bandwidth - 50 . 00 to 52 . 00 Megahertz

The X-antenna antenna for portable work on 6m
The 4 rods go through holes grommet sealed in a small round plastic box. The rods I used have 10 sections with a maximum diameter at the base of 9.5mm. When un-extended they are 16.5cm in length and 131cm when extended

Tonnà 5 Elementi 50 MHz: modifica del dipolo
La 5 el. Tonna e' un'antenna con un buon rapporto prezzo/prestazioni, inoltre e' discretamente robusta e facile da assemblare per un uso portatile

Una Yagi a 6 elementi per i 6 metri
L'antenna, una sei elementi lunga poco meno di sei metri, il boom in tubo di alluminio del diametro di 40mm


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

Voice Recorder

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