Oki thanks you for the informations.
But i have some last questions to do.
Is the owner of this project don't care anymore about it ?
Because he must to make an update of the RF exit way on the pcb, to solder an connector-plug directly on the rf stage.
This will make an perfect swr tunning over the Power-Supply and the iron.
For example watch out this guy from youtube min 0:27 to 0:31 :
as you can hear, he claims to have problems with the hadler and in my personal opinion that problem is started by a wrong swr tunning caused by
the cable soldered on the RF powersupply.
We really need that update (At least i think this way)