G4GUG

Mike Meadows


U3A Subject Advisor for Amateur Radio.


https://www.u3a.org.uk/learning/subjects/868-amateur-radio


www.qrz.com/db/g4gug


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