The HFDY Active Loop is working extremely well and that too from an indoor location in MK68! Pretty awesome ;)

HFDY Active Loop 1

I am running the loop at 5V (via a regulated linear power supply) currently where it consumes slightly less than 65mA of current. The recommended voltage is 10V, which I will shift to soon.

Results:

HFDY Active Loop Results 5

I am using Airspy HF+ Discovery SDR for this experiment.

Future work:

It would be very interesting to compare this HFDY Active Loop against the PA0FRI Active Antenna.

References: