On August 14, 2016 in the afternoon these two antennas were run against each other at SK0QO’s QTH on Gålö South of Stockholm. They were mounted on separate masts about 18 meters above the ground with water in front in a northwesterly direction. The test was done using the Reverse Beacon on 20m towards North America. The power was 100 watts.
Receiver A3S dB SNR spots PRO96 dB SNR spots
W1NT 11, 9 9, 11
W3UA 19, 23 16, 23
KM3T 19, 20 17, 22
K1TTT 6 5
This gives that the A3S was on average 1.5 dB stronger than the PRO-96