Is your ham radio rig made of iron and ... Most of the challenge in receiving the Alexanderson transmitter broadcasts are due to this very low broadcast frequency; your antenna is not long enough.

When we think of a spark gap radio transmitter ... The RC network and the spark gap form a simple low frequency relaxation oscillator, with the C being charged until the spark gap triggers ...

C1 capacitor value depends on antenna inductance and target frequency (see below). As small mosfets like BS270 can handle up to 250 mA, you can design a more powerful transmitter with two ... There is ...

Abstract: A demonstration of an aerostat-supported extremely low frequency/very low frequency (ELF/VLF) transmitting antenna was performed. At ELF the vertical electric dipole (VED) antenna radiated ...

The KT0803K/L features dual 20-bit ΔΣ audio ADCs, a high-fidelity digital stereo audio processor and a fully integrated radio frequency (RF) transmitter. An on-chip low-drop-out regulator (LDO) allows ...

Abstract: The low-frequency radio emission of starburst galaxies is informative, but it can be absorbed in several ways. Most importantly, starburst galaxies are home to many H II regions, whose ...

The Dwingeloo telescope, designed to observe signals at low frequencies, detected the farthest human spacecraft when it went ...