The marker generator works but at a low level across all bands although maybe louder on some - it will not move the S meter but is clearly audible and fades out when RF gain is turned fully anticlockwise.? So long since I repaired any radio gear I have forgotten just about everything - like trying to find out where the marker loses its 'power'.? I was of the opinion that an RF device has gone open - like the 3SK51-3 or the J310 - but I may be going down the wrong track there.? The significant parts to me are:? One day it was perfect, next day on switch on it was completely different with no 'strong' signals and S meter not moving.? Transmit works fine and delivers full power.? A few days ago while using radio on air I had a loud 'crack' in the phones and signal strength returned to normal - but only for a few seconds!? I am very fond of the FT101Z and would really like to get to the bottom of this.? thanks again for? input.
Alistair GM4ENF