https://github.com/simonyiszk/openwebrx RASPBERRY 1 CHANGE IN MAKEFILE: csdr MakeFile PARAMS_NEON = -mfloat-abi=hard -mcpu=arm1176jzf-s -mfpu=vfp -funsafe-math-optimizations -Wformat=0 tnx Jan Szumiec for the Raspberry Pi support PARAMS_RASPI = -mfloat-abi=hard -mcpu=arm1176jzf-s -mfpu=vfp -funsafe-math-optimizations -Wformat=0
other
https://g8fek.com/lna.html
https://pictortelescope.com/ https://www.pictortelescope.com/observe PICTOR consists of a 1.5-meter parabolic antenna that allows anyone to make continuous and spectral (i.e. hydrogen line) drift-scan observations of the radio sky in the 1300~1700 MHz regime for free.
The half-wave dipole antenna is just a special case of the dipole antenna, but its important enough that it will have its own section. Note that the «half-wave» term means that the length of this dipole antenna is equal to a half-wavelength at the frequency of operation. To make it crystal clear, if the antenna is to radiate… Leer más »
https://github.com/pothosware/SoapyRemote/wiki
Antenna size depends on the frequency you want to hear: higher frequency (bigger number) – smaller antenna.You need an antenna that receives signals from all directions – called omnidirectional.Materials make no difference: any type of wire is good, as long as it keeps its shape. Metal coat hangers are popular, multi-stranded or solid makes no difference. I’m… Leer más »