The wave angle is 20-40° with a maximum at 34°, the F/B of 27 dB with RDF 7.98 and SWR 1.17 for 450 ohms. The gain of the Mini-K9AY is about -44.4 dB, the main lobe opening angle (-3 dB) is ~90°. The simulation uses a Sommerfeld-Norton ground with dielectric constant of 13 and conductivity of 0.005 mhos/m. I used a ‘ground improvement’ with two wires of 5.9 metre (19 1/4 ft) lying on the ground perpendicularly to the loop plane. My analysis of a ‘real world’ Mini K9AY is slightly different. Since Mini-K9AY has weaker gain than its big brother (on MW about 30 dB and in tropical bands about 10 dB less), I recommend using a good-quality, low-noise preamplifier. Manno Ritola studied radio communication and broadcasting in Leningrad Institute of Radiocommunication and Broadcasting, Russian Federation in 19791981. The main beam should naturally be towards Tibet to 205. The attenuation of the incoming signal from backlobe depends on the value of the terminating resistor and may be 15-25 dB. Mauno Ritola Tue, 12:36:28 -0800 I think I should have said 'maybe' instead of 'most probably' as we don't know the exact pattern of the system. Amplification of the Mini-K9AY is on medium wave abound -60 dB, and on low parts of SW-35 dB at best. The antenna receives best from the direction of the terminating resistor ("R" in the picture). The antenna gets it directional properties with its terminating resistor, and adjusting it may be useful to find the least noisy reception. Mini-K9AY antenna is very suitable for noisy environment: it attenuates nearby noise. It is fairly effective also on other shortwave frequencies. Mini-K9AY antenna works best on medium wave on lower frequencies of shortwave (2.3 - 5.1 MHz). The antenna must be connected with 4:1-impedance transformer to 50 Ohm coaxial cable and the receiver. The impedance of the antenna is approximately 200 Ohms. To function effectively Mini-K9AY antenna requires terminal resistor (marked as "R" in the picture, with value of 125 - 200 Ohms). Mauno Ritolas 10 research works with 40 citations and 3467 reads, including: Directional sensitivity of track initialisation of a multistatic Doppler-only. Height is 1.5 metres and width only 1 metre. Mini version of the antenna is much smaller. This World Radio Tv Handbook 2014 The Directory Of Global Broadcasting 68 By Sean Gilbert Mauno Ritola Bernd Trutenau John Nelson Nicholas Hardyman, as one of the greater part operating sellers here will totally be paired with by the best choices to review. K9AY antenna has triangular shape, height being 7.62 metres and width about 9.3 metres. Mauno Ritola Bernd Trutenau John Nelson Nicholas Hardyman that can be your companion. Re: DX Kuullut Asemat Palsta ilmestyy RM 1/2007 Alpo Heinonen Re: DX Kuullut Asemat Palsta ilmestyy RM 1/2007 Reiniluoto, Timo Re: DX Kuullut Asemat Palsta ilmestyy RM 1/2007. The english translation by Mauno Ritola is here: Genealogy for Mauno Johannes Ritola (1909 - 1980) family tree on Geni, with over 240 million profiles of ancestors and living relatives. Re: DX R Zvezda 1440 Mauno Ritola DX EDK 500 Kimmo Vuorela DX Lhinn SW:st Harry Forsblom DX Kuullut Asemat Palsta ilmestyy RM 1/2007 Alpo Heinonen. The initial version of Mini-K9AY antenna was published in finnish here.
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