Vitor,
why don't you consider a AT-200 Pro from LDG? not weatherproof but way capable of tuning almost everything(I guess better than FC-40) and CAT is completely independent.
Only drawback is that it will recognize band change only if you tx, switching bands after tuning them will require a brief press of ptt to recall last tuning for that band frequency(very quick, like a fraction of a sec).
It could be even remoted, no connection beside the coax and some sort of power supply.
Once tuned, you could even shut down the power and save battery.
I have a AT-100 Pro, it will tune 1.5W and it could be a good choice for QRP(though form factor could be smaller).
Giuseppe Marullo
IW2JWW - JN45RQ
