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RBOG Antenna
Answers
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The BevFlex-4 reversible low noise receiving antenna system is now available, in stock, from Unified Microsystems at: https://www.unifiedmicro.com/bevflex4x.html
It can be configured as a Beverage, BOG, EWE, FLAG, or VE3DO low noise receiving antenna. All are instantly reversible.
73, Geoff-W8GNM
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Just curious ... has anyone had an opportunity to compare one of these to something like the Pixel Loop? The Pixel has a dipole like pattern, and can be rotated with a small, inexpensive TV rotator and doesn't need to be very high.
Pierre VE3KTB1 -
GA DR OM! First time I used RBOG from KD9SV and it works fine! I'd purchase 2-4 more pcs but they are not in stocks any more, especially where I live. So I have to invent smth myself using 2873000202, BN73-202, 50474C etc. I put 360 ft long unsplitted wire at 1 ft high above the ground with 3x45 ft counterpoints at each side + 4ft metallic stick into the ground. Hope to hear anybody from your group on top band. Best 73! UA3BL0
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I had a Pixel loop. It lasted a week before I sold it.
I have a BOG and a DX Engineering active antenna. I am very happy with both.
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Hey all, it's been a minute on this one. Anyway I discovered with both the RBOG and 4 Square systems my neighbor has an electric fence around his 5 acres. His property partially butts up against mine, since then I have relocated both systems and eventually took down the RBOG. Will probably play more with it now that we have additional acreage to work with but I found the 4 Square at 35' sides to work quite well, with the new property am looking at possibly expanding those sides a bit but hard to change when it's working as well as it is. Noise floor with that system is extremely low and I can hear those weak signals very well most of the time. Hard to mess with a good thing.
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I have had a BevFlex4 since 2018 in the beverage above the ground configuration about 8' or so installed on a ridge going through trees, maybe 6 or so of topsoil, rock underneath so grounding is not ideal. Have 525' of RG6 pointing NE - SW. It is very direction and have been using with tremendous success until I got the SteppIR up in the air. I continue to use it on lower bands to this day. See my QRZ page where I note using it as a receiving antenna and a 160m full-wave loop as transmit antenna. in 2018 some notible contacts using this setup: 4B4B (Revillagigedo), P6D Ducie Is (5507 miles) on 7-bands, YJ0GC Vanatu (8191 miles) on 40m & 30m, Rotuma Island (7515 miles), Mauritius (5901 miles) on 80m and 9LY1JM Sierra Leone (4677 miles) on 4-bands.
The toughness of the RG6 cable is certainly an advantage vs wire. Several trees have fallen and lots of branches have come down, just once the RG6 was cut and easy splice fix. I've actually have more issues with the ground lead coming from the box to the ground rod, that has snapped a few times. I liked this beverage so much I reverse engineered it and built up another but haven't installed it yet. Also I have not tried BOG configuration but do remember 200' length is optimal for BOG.
I've read that with DXpeditions, where using a ground rod is impossible because of the terrain/beach whatever, rocks etc, they use a couple radials spread out on the ground, that is something I would like to try some day too.
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