Yet another receive loop is born.
The construction is similar to the first 500 kHz loop, i.e. cardboard box loop, but made with Litz wire and with only 6 turns.
The calculation of resonance frequency found here indicates a frequency range covering the whole of the 160m and 80m band, and this looks like what I have.
The coupling is made with a further full loop, and it looks like that creates a too hard coupling to the antenna (not really unexpected), making the antenna rather broadband.
Later this week some experimentation on the coupling loop size is in the planning.
FT8 it's a winner! - 28 MHz FT8 mode last night open to VO1NE GN27 S.A. PY LU CX CE good signals after repairing the wire antennas damaged in the storm last week 80m...
1 day ago