The Mini-Kits EME234 HF Magnetic Loop Antenna module has been designed to be easy to install, and covers a usable wide frequency range from 0.5 to 60MHz. It is particularly useful for those that have antenna restrictions or limited space to install a full size HF receive antenna, or have very high man made noise levels. The magnetic loop is particularly effective at reducing power line and common mode type noise and being a figure 8 pattern with vertically polarized signals, can be rotated to further notch interference. The amplifier is based on the design by Chavdar Levkov LZ1AQ, and incorporates static and lightning protection, and has a broadband 50ohm output impedance suitable for driving most receivers. The amplifier is designed to be used with a 1 metre single turn loop, and a balanced low input impedance common base amplifier is used to match the input. Low cost RF Transistors are used as the active devices, which produce high output second and third order figures reducing the possibility of inter modulation on received signals. The design incorporates power supply decoupling so that power can be fed to the Active circuit via the coaxial cable.

The Product image shows a fully constructed EME234B-M Module product without connector.  Please refer to the Options Tab for the descriptions of the various products available. It is recommended that the EME195 HF Bias Tee or EME215 HF RX Active Switch Kit is used to feed the power supply voltage up the coaxial cable to power the active antenna. For more detailed information on how this module Kit can be used, Please see the EME234 Kit webpage