If it's a reflection of the signal, it will not be obvious. There is nothing there: it is at the end of a dirt road and surrounded by a forest. How to capture this signal?
By the emprical method, AKA trial-and-error. Do you have any kind of signal strength indicator to track improvement?
What I understand from all of this is that under certain circumstances:
1: it may be better installing a antenna as low as possible when there is reflection of the signal;
2: the angle of the antenna should be adjusted according to the signal reflection.
The angle of the antenna should be adjusted to capture the maximum signal.
The story of Peter Putnam
is very interesting about this: "Knife-edge refraction works so well at this location that I actually received all of the Albany DTV channels with the CS600 resting nose-down on the ground and its rear elements tilted up at a 45-degree angle against the mast!"
Yes, a very interesting story by Peter Putman;
I had the link before
Then I lost it
Now I have it again, thanks to you.
It is a special case of signal enhancement by ground reflection because the ground slopes down in front of the antenna. The diffracted signal, coming down from a terrain peak, arrives much like a skywave.
Les Moxon, G6XN, describes that type of enhancement in detail in his book HF Antennas for All Locations.
I will do some experiments at the end of May. I will focus on two UHF channels (CBFT and CBMT) with respectively -4.8 and -5.3 dB NM. I think that an Antenna Direct DB4e (12dB gain at these frequencies) with an amplifier should be enough for testing.
The DB4e was rescaled down for 14 to 51, so it should do better for 19 and 21 than most other 4-bay antennas. However, it doesn't have a tilt feature; that would be a custom mod.
Ground gain and radiation angle at VHF