This year, I'm planning to upgrade my equipment. Currently, I'm using a certain domestic QRP SDR, but I won't comment on it. I've been experimenting with it intermittently for two years, and I've gained some basic knowledge about shortwave radio.
I'm currently looking at the SunSDR, FT891, Icom 705, Yaesu FTX1. Which one do the experts recommend?
The new B radio can only operate at 15W. This is because there are no base station facilities available, so all current setups involve using portable antennas or vehicle-mounted equipment. Power sources typically include car cigarette lighters, portable power supplies, and power banks. Currently, there are also no readily available power sources for supplying the 10-100W range required by these types of radios.
The antenna has a 5.6-meter boom, JPC7, HexBeam, and a 20m dipole. The HB and DP required multiple installations and specific mounting conditions, so they were used about four or five times in total. The boom and JPC7 were used more frequently. This year, I plan to build a portable Yagi antenna using the boom.