Total posts : 45366
by MRAM 1500 kHz
I’m curious to know if you took a look at the modulating characteristics when the transmitter was loaded at 24.3 ohms. I’ve noticed that some transmitters don’t modulate well when loaded for maximum RF output. They tend to have little or no upward modulation when loaded for max RF output.
Metzo is one of them. It would seem that the “long-tail” output stage runs out of gas when it comes to modulating if it’s cranking out all the RF it can.