Always looking for good antennas to use in HOA I thought I would give the LOG antenna a try. I was surprised by the results. This is definitely going to be a permanent antenna now.
I used this antenna when I was a SWL back in the 1980s. It worked okay, but my then-friend who was renting a room from me destroyed a couple of versions of it while "helpfully" doing yard work. Prior warnings about the antenna and the trip danger went unheeded.
I think a wet noodle is a better antenna/ .... .. 73 from, The K0UO " Rhombic Antenna Farm" 2 miles of wire in the Air & On the daily
It seems the easiest way for me to find old wires is to use the lawn tractor, after 31 years they breed.
I have recently deployed a 95 foot circumference Loop On the Dirt, with 75 feet of RG213 feedline. Received signals on 75 Meters are down 6 to 7 S units compared to 252 foot horizontal loop at 38 feet. Unfortunately, the noise is down only 2 S units. . So Far, after 3 days I have not heard anything better on the ground than I have in the sky. Possible improvement may come from a common mode choke, or a balun at feedpoint.
Several years ago I tried a vertically oriented loop with a rotator, at 25 feet high, as a receive only antenna, on 75 meters. It was a square, where each side was 10 feet, total length 40 feet. I was able to null out noise very effectively, and I used a regular full size horizontal dipole at about 50 feet as a transmitting antenna. Eventually a T-Storm destroyed the loop, but I noticed most of my atmospheric noise was vertically oriented and consistently from one direction, so I reoriented my transmitting dipole and I was able to cut down the noise somewhat. It wasn't as effective as nulling the noise with a separate vertically oriented receive loop antenna, but it helped.
Needs a cheap pre-amp from Amazon. About $16. My LoG is 130 feet and picks up just about every signal my 80m inverted vee does, as well as most of what my 7-band (40-10m) Cobweb antenna does. And it's quieter too. My LoG is my permanent RX only antenna for my SDR. Also, using 75 ohm TV cable is a much better match than 50 ohm coax. See KK5JY LoG.
I guess if you cannot get wire in the air . I loaded up an abandoned rail line and it played pretty well but it was a few miles long.
I really, really doubt that a LOG has a better receive SNR than any above-ground horizontal wire antenna. The physics just does not support it. Now it is possible that when comparing SNR by switching between two receiving antennas, the coax feedlines from the receiver to the respective antennas have a different degree of suppression of Common-Mode currents on the feedlines. Since it is CM current on the coax shield that likely conducts RFI from your house's electrical wiring to the antenna feedpoint, the antenna with the higher degree of CM suppression on its feedline will appear to have a better SNR.