As I have no antenna or dummy load, I cannot test this unit before shipping. Returns will be a refund on return of the defective unit. [1] It isn't. [2] No RF amp was ever linear.

As the next generation in high-performance antenna preamplifiers, the CPA-19 is a commercial-grade preamplifier that generates very little noise and retains a high resistance to signal overload. A ...

His recent video shows how to put up a workable basic HF antenna in a small backyard. The center of the system is a 49:1 unun. An unun is like a balun, but while a balun goes from balanced line to ...