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AMATEUR-RADIO DX on 144MHz
e-mail / disclaimer / impressum
2 x 9el 2.5wl (own design) with rotatable polarity (0°-180°)
The antennas are a 25ohms design and simply connected together after lambda 9/4 of 50ohm coax (25ohms to 100ohms transformer)
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                                       Some things still left to improve:
lambda/4 stub (coax directly connected to the dipol yet) and loss in the poor coax is 0.7dB yet
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I was very happy to work 3B8EME and OA4TT in the 1st days of operation and HS2JFW, BD4SY, 3D2RS later.
Smallest stns wkd up to now: VK5APN with 2,5kW erp
Smallest stn hrd up to now: was VK3KH at -25 with 1x3wl and 120W abt 2kW erp only
jo61tb
in horizontal position
turning in vertical position needs 4sec
position 60 deg elevation Hpol
position 60 deg elevation Hpol
position 60 deg elevation Hpol
position 60 deg elevation Vpol
position 60 deg elevation Vpol
position 60 deg elevation Vpol
getriebemotor01
new gear motors can turn from pol 0° to 180° (from H to V in 3sec)
© DD0VF 2011-04-09
Extraction from the VE7BQH G/T table
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Mounted 2 new gear-motors in march 2011
and a new control (follow up control) link