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LA6AFA
QTH
HOME QTH
My home QTH is near the city Moss, in the south eastern part of Norway.
Locator: JO59IL
CQ zone: 14
ITU: 18
RIGS
HF: Yaesu FTdx10
VHF: Yaesu FTM-150
ACCESSORIES
Power supply: 12V/50Ah LiFePO4 battery
Battery charger: Victron 12V/7A
Paddle for CW: Bencher
Computer: DELL, with extra monitor
Logging program: LOG4OM 2
QSL & LOGS
QSL via eQSL
Logs: LOTW and QRZ (see link in the menu)
ANTENNAS
For the time being, I have 4 antennas:
6m/2m
DUAL Antennas double monobander with 4 elements on 6m and 8 elements on 2m, ontop of my mast, 15m above the ground.
20m/15m/10m
Mosley Mini-Yagi MINI-33-A
40m/80m
OCFD EAntenna "Windom" (80OCF1,5), 42m long (about 8m off the ground).
2m FM
Diamond X300 antenna for 2m & 70cm.
73 de LA6AFA
Dag Halvorsen
My QTH is Moss, between Oslo (the capital) and the swedish border. Latitude: 59,5°N.
It's about 1000km south of the arctic circle, and the same latitude as southern Greenland.
2m/6m Yagi
10/15/20m Yagi
Yaesu G-1000DXC rotor
2m antenna
40m/80m antenna
Shack
Antenna mast project
Due to HOA considerations, a tower was not an option. So, how to put up some yagi's, as high and conveniently as possible, without a tower?
The solution for me, was to make use of the house. The top of the roof is about 9m (30 feet) above the ground. The 6m long (63mm diameter, 4mm thick steel) black pole, going into the rotor, reaches about 2,5m (8 feet) above the roof. Not ideal, but practical, and secure. Then there is another (white) steel pole ontop of that, about 3m (10 feet). To the bottom of this pole, the HF Yagi is fixed. To the top of this pole, the 2m/6m Yagi is fixed. Totale height of HF Yagi: 11,5m (almost 40 feet), and 2m/6m Yagi: 14,5m (almost 50 feet).
The rotor is mounted on a hinged plate. About 3m up, the pole is fixed to the house,using a Yeasu trust bearing.
As you can see from the movie clip below, the entire pole can be lowered and erected using a winch mounted ontop of the3 pieces of 2"x8" wooden bars, where the trust bearing is fixed via a custom designed 4mm thick steel plate.
This design works well, and it is very convenient to be able to lower the pole for adjustments and maintenance.
Today, the HF Yagi is a Mosley Mini-beam, 3 element 3-bander. My plane is to replace this by a Mosley PRO 57B, some time in august 2025. Probably this upgrade will require another trust bearing about 0,5m (2 feet) above the rotor, to take some of the forces induced by strong winds on the bigger Yagi away from the rotor.
73 de LA6AFA
Dag Halvorsen
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