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ON5KQ - 40m contest station |
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Written by Administrator
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Sunday, 03 August 2008 10:19 |
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When I moved to Belgium in 2002, I realized that it would be impossible to keep a real active member of PI4COM contest group, because of at least 3hour drive to reach the site in the Netherlands. So unfortunately for active contesting I needed to find a alternative solution...
I found that the location of Brugge Marine Center (www.bmc-ribs.eu) would be a great place, as the company building is very close to the ocean and stands right at a saltwater canal which connects the inland harbour of Bruges with the large container seaport of Zeebruges.
Being only about 2km from the northsea shore but still having the saltwater of the canal literally underneath the roof should be a great place for serious DX work.
The grid locator is jo11of in the north or Bruges (Brugge)
As I am anyway closely connected to Brugge Marine Center (doing regular business support for the company owned by my brother in law) we quickly agree to use the large flat roof of steel to put a 40m 4square on top.
In 2004, I started contesting with really great results - almost from the beginning, I added also a home-brew amplifier using 30pieces of small TV sweep tubes for legal power output of 1kW in all modes (incl. RTTY)
The site is very clear in all directions. Beaming from North over east to south all directions are over saltwater. Only to western directions the take-off is over land, with the disadvantage of rather high noise from the south-west. The Phillps factory about 1km away is producing considerable noise on the 40m square. Fortunately so far, I never experienced any missing multipliers in that direction, due to poor reception - just it is a little less comfortble than other directions.
I am using a FT-1000MP plis 1kW amp (fixed for 40m)
For RTTY and CW, I added a Microham Microkeyer and N1MM as contesting program.
I have a seperate room in the building available reserved exclusively for HamRadio. I use the company network for Internet access (telnet DX cluster). Access to the roof with the antennas is very easy with a fixed installed ladder to the roof from inside the house.
End of August 2008, I had to refurbish the 4ele vertical array, as during a storm one of the elements broke. I am using 10m long fiberpoles (by spiderbeam) with attached copperwires without any guys. Due to the location very close to the north sea coast high winds are a challenge. Even more a challenge however is the very aggressive salty climate due to the saltwater in the neighborhood. Any connectors corrode very quickly and the good connection to the radial system is very difficult to maintain. I use fluid rubber (by Rubson) to completely seal everything soldered - but even though to keep the radial system working is the main challenge in this location.
The big advantage however is the permanent steal roof underneath the antenna's. As the steel roof is isolated against cold in the winter with a thick layer of bitumen, I cannot access the steel directly as a ground system. Therefore about 320radials have been put over the entire roof surface of 40m x 50m (2000m2)
I am planning to become more active in the major contests in 2008 - especially in contests with SOSB entries (I operate only 40m from here)
See the contesting section for further details on contest operation
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Last Updated on Monday, 24 November 2008 16:13 |