This little QRP radio is getting me crazy.
Only 5 watts: I arrived to Argentina on 20 meters band. CW mode.

Brilliant, I would say.
An old hamradio saying suggests that if you have 1000$ spend 900$ for antenna and 100$ for the radio.

I agree. I think that the most of the job is done by my Antenna. End Fed antenna by LNR precision. 13 meters length.  It is deployed to the tree in front my window.  40 / 20  / 10 meters band covered.

No need of a tuner.

Simply brilliant.
I suggest everybody this antenna.
Here there is a QSO published recently on Youtube.