Hi Christoph,
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Yes, I've been please thus far with medium wave results. Besides the excellent nulling available 0-360 degrees of the compass, I am finding that nulls are generally broadbanded and similar to the Wellbrook K9AY phaser setup. This is very advantageous when living at or near the Pacific coast. I am able to orient directional antennas like these with the forward beam towards the trans-Pacifc DX, and all domestic (USA / Canada) signals are reduced to various degrees. This really helps the overseas signal carriers to have better S/N and a chance for audio & IDs.
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Sensitivity of the Azi-Loop seems more than adequate for weak signal reception. At my location during the night time I am able to use the loop's 18dB preamplifier without any attenuation, or overloading.
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Solar condx lately has made medium wave DX reception very poor. However, this morning's "dawn enhancement" boost was better than yesterday. There were only a couple Australian stations in audio (612 4QR Brisbane and 792 4RN Brisbane), but also a dozen or more carriers from "DU Land". These were noted in comparison to listed carrier frequencies with a calibrated Perseus SDR and Jaguar Pro software. Interestingly, I had anticipated Asian reception for my unattended recordings, and had preset the Azi-Loop's bearing to 310 degrees (Japan/Koreas). Perhaps if I had set the orientation around 240 degrees I would have had more Aussie stations captured to the SSD for later review.
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My other SDR, a FDM-S3, works extremely well with this antenna also.
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I'm planning to set up the Azi-Loop next week at a nearby seaside location (Grayland, Washington) and hope to have improved DX results due to sea gain.... and fingers are crossed for better propagation also.
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73,
Guy Atkins
Aberdeen, WA USA
Guy Atkins