uckalux got a reaction from chicken in [POTM] dAISy - A Simple AIS Receiver
Instead of siglal generator you can use ham VHF , on some VHF there is a power selector H, L, EL.
Put power selector to EL it is 20mW if not put on low. Instead of antenna instal dummy load resistor; non inductive resistor (carbon) 50 ohm 2W.
On hot part connect trimer 100k and 10k to gnd. Small signal you can take from connection between trimer and 10k.
Signal you can adjust by trimer.