YouTube Channel OK1IF
Milan's OK1IF blog is certainly read by many radio amateurs. It is full of inspiring experiments. OK1IF blog http://ok1if.c-a-v.com However, hardly anyone noticed, that Milan also has a video channel on YouTube https://www.youtube.com/user/StejskalMilan/videos , to which several videos have been added in recent weeks
(tr)uSDX cast1 IMD measurements using KX3
AT 20220901 130614 part 2 two tones in the receiver
AT 20220901 130940 part 3 used attenuator
AT 20220901 131222 part 4 comparing two RX on IMD3
AT 20220901 131659 part 5 RS918 is compared to (tr)uSDX significantly better
AT 20220901 134547 part 6 a little comparison of what DR is (IMD3)
TIP: one older video about the use of the ionogram and shortwave propagation
But the other videos are also worth watching!