2-element active antenna. Dave uses this system to phase-null noise. Greater than 30 dB noise nulls can be achieved, aiding in his LowFER reception in the 1750 meter-band.
2-element active antenna. Dave uses this system to phase-null noise. Greater than 30 dB noise nulls can be achieved, aiding in his LowFER reception in the 1750 meter-band.
Dave's R-390 Receiver