Talk:Detector "Echo"/@comment-10507735-20171115121221/@comment-32882200-20171116142346

Yes, the software is weightless, doing the nine firmware upgrades will not change the weight.

But the two Detector systems upgrade add 0.15 resp. 0.1 kg and the Powerful antennas 0.2 kg, so guessing from the antennas (made from gold, judging by price and weight) the systems upgrades are hardware add-ons, too.