Hello, We built a 3 Meter site a few years back - maybe some of our experiences will help. We built it using all wood framing with nails no bigger than 16 penny (about 2" to 2 1/4"). We have two windows with plastic frames (to let in some light), a ridge vent that is made of cardboard (for ventilation), and a ridge pole that is made of plywood. The outer surface is plastic house siding. We used asphalt roof shingles.
The thing looks like a ski slope with the peak at the maximum for the adjustable antenna. We had no problem staying within the 4 dB limits. We have passed every year so moisture must not be too much of a problem. We have a different problem in that the water table is very high here and we couldn't put a basement under our site, so we built up. Our ground plane is eight feet off the ground. It works fine for a 3 Meter site but there is no way to move outside and use it as a 10 Meter site. That also makes the building very very tall. Bill Franklin [email protected] > > Winter is coming and Hurricane Fran took my fabric-type Air Support > structure with him leaving my 10 meter "all-weather" Open Air Test Site as a > "fair-weather" site. :>( > > How about passing on your experiences regarding problems with any particular > types of PERMANENT building schemes to enclose RFI test sites. What (other > than the obvious conductive types) materials will erode my site attenuation? > Will I have to be concerned about things such as moisture content of the > framing? > > What types of designs yield a robust structure, yet allow for the 6 meter > high antenna clearance so the antenna can be moved from the 1m position to > the 10m position without dropping the mast? > > Thanks > > Joe > Joe Tolbert > GENICOM Corp. > Waynesboro, VA > [email protected] > >
