by Matt (W6CSN) The Mountaintopper MTR-3B is a popular QRP portable HF transceiver that has a bit of “cult-ish” mystique about it. The radio seems to hit the sweet spot of size, weight, performance and capability desired by so many portable operators. While I have operated the MTR-4B, and quite like it, I have yet … Continue reading New Mountain Topper MTR-3B Details
