Test of ADA antenna amplifier with Siemens K2155

Following my previous post on the same subject, this video shows a "kitchen table" test of my build of ADA antenna amplifier by Claudio Re. During the test, the amplifier has shown an almost constant voltage gain of about 30 dB. Gain variations were within +/- 2 dB over the whole frequency range of Siemens K2155 selective level meter, that is 200 Hz to about 650 kHz, with only a slight decrease starting at about 400 kHz. No particular care was given to shielding, insulation, etc. so the results are to be taken as approximate figures only, expecially below 500 Hz where AC mains noise (50 Hz and harmonics) is dominant.