The Com-Power AL-130 is a broadband receiving loop antenna for operation in 10 kHz - 30 MHz frequency range. The antenna is designed for magnetic field measurements, utilizing a shielded loop. Its aluminum construction makes it light weight.
The AL-130 has a built in preamplifier which improves loop antenna sensitivity and makes antenna factor curve more flat. The preamplifier also provides an output matched to 50 Ω, so that it can be directly connected to any spectrum analyzer without an additional matching network.