G4GUG
Mike Meadows
U3A Subject Advisor for Amateur Radio.
https://www.u3a.org.uk/learning/subjects/868-amateur-radio
Twitter @g4gug1
I live in a park home. ( Polite name for a wooden bungalow ) I am only allowed tv and satellite aerials , because of site conditions and very hostile neighbours.
It is 28 x 20 feet . I have this covert loop running along plastic gutters and up and over the underside of apexes each end. It is only a matter of inches away from "Fake" roman tiles which are aluminium sheets formed as a roman tile . The average height is about 8 feet ASL.
Fed at the western end with a Chinese balanced output auto tuner ( not 50 ohm in 50 ohm out )
Called a cg3000. marketed by MLS.
Marvellous piece of kit.
Used a second copy for feeding 7 m fibreglass vertical with radials, when portable.
Both types of aerials load 160-10 and now home version, 50 MHz !
I will produce some on resonance SWR bandwidth curves from my FA-VA5 aerial analyser, at a later date.
Quite a bit of setup required there.....
My QTH is approximately 725 feet ASL.
You may be interested in the following screenshots, taken from the MMnana-Gal aerial modelling software. In the plots x marks the feed point.
Aerial Layout
50 MHz 3D plot
6M Plot
17M
12M
15M
20M
10M
30M
40M
60M
80M
160M
50 MHz h-v plot