The MFJ-1886 is an untuned, active loop antenna that covers 500 kHz to 30 MHz. "Active" means that it uses an integrated broadband preamplifier, and it is intended for receiving applications only. If you transmit into it, even briefly or with low power, you will damage the preamp. If...
The challenge is neither is directional which is a problem when in the middle of the US. As often a frequency will be occupied by stations on the east and west coast who are unaware of the presence of the other. As a loop has a very deep null at right angles to the loop, I am a...