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Monopole Antenna TFM T2FM T3FM
Terminated Folded Monopole Antenna TFM T2FM T3FM The Terminated Folded Monopole (TFM) is a derivation of the TFD, and it is usually implemented as a vertical antenna over an RF ground plane or a radial system
post 02 May 2024
Antenna Shortwave Links →
Reducing noise to your antenna
You must have a good install to eliminate the most common problems
Rhombic antenna for shortwave
The rhombic antenna is a diamond-shaped antenna, suspended between 4 masts
RX con antenna a quadro con ECL82
Si tratta di un ricevitore a reazione, basato su una variante del circuito Hartley
Shielded-Loop Receiving Antenna
Shielded-Loop antennas have some nice properties that make them desirable as portable receiving antennas
SWL - Shortwave Listening
SWL or shortwave listening is the reception of public broadcast or amateur radio ham stations in the frequency range 1.8 to 30 MHz
40
You must have a good install to eliminate the most common problems
The rhombic antenna is a diamond-shaped antenna, suspended between 4 masts
Si tratta di un ricevitore a reazione, basato su una variante del circuito Hartley
Shielded-Loop antennas have some nice properties that make them desirable as portable receiving antennas
SWL or shortwave listening is the reception of public broadcast or amateur radio ham stations in the frequency range 1.8 to 30 MHz
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
30 Volt Computer Power Supply Stack A bonus was that i discovered that these did not need a standby load connected to the supply to keep them running just apply mains power and close the Start lead to ground