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Attic T2FD SWL antenna
I am also an avid listener of other things on the long, medium and shortwave bands
post 16 Feb 2024
Antenna Shortwave Links →
MTM Scientific Shortwave Loop Antenna Kit
Shortwave loop antenna KIT allows you to build a tuned loop antenna for indoor reception of shortwave radio broadcasts over the frequency range of 4 MHz to 15 MHz
Randmon wire antennas
This is probably the oldest SWL antenna design. It is often called a long wire though a true long wire is cut to a specific frequency and is at least one wave length long at that frequency
Random wire antenna for shortwave listening
it would be best to use a 9:1 transformer to match the random wire to the 50 ohm feedline
Receiving loop antenna for 160 meters band
I wanted to explore the possibility of having at least better receive
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
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Shortwave loop antenna KIT allows you to build a tuned loop antenna for indoor reception of shortwave radio broadcasts over the frequency range of 4 MHz to 15 MHz
This is probably the oldest SWL antenna design. It is often called a long wire though a true long wire is cut to a specific frequency and is at least one wave length long at that frequency
it would be best to use a 9:1 transformer to match the random wire to the 50 ohm feedline
I wanted to explore the possibility of having at least better receive
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
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