Vrocehladno
20 – Hot/cold method
≈
G
TRX
F
R
R
Resistor type
Antenna into cold sky
Avalanche breakdown
Antenna into absorber
Light-bulb filament as R
Ionized gas as R
Liquid N2 cooled R
R at room temperature
Temperature
~20K
~106K
~290K
~2000K
~104K
~77K
~290K