If you need an amplifier, [Hans Rosenberg] has some advice. Don’t design your own; grab cheap and tiny RF amplifier modules and put them on a PCB that fits your needs. These are the ...

Communications systems specialist Ultralife launched the A-2303, a compact, energy-efficient military amplifier.

So far he’s demonstrated it with a bandpass filter and a dummy load, but he suggests it should also be suitable for amplifiers using RF gain blocks. Best of all, the board is open source ...