ATHENS 
MY WEATHER STATION, BY DIMITRIS
Location: Peristeri of Athens, Greece
Position: 38 00.58' NORTH / 23 42.04' EAST
Elevation: 63 meters
contact me at 

Replace the anemometer's telephone cable with shielded CAT5
I have made a modification,i replaced the simple telephone cable anemometer La-crosse,with a shield CAT 5 FTP cable , because some times La-crosse modells ws-23XX if there are
electromagnetic interferences near them,show false air speed readings 91,8 km/h.
The original concept and design is from Kenneth Lavrsen's.
For better results i have added 2 ferrites and the two end of the cable ,one ferrite near to anemometer and the other one near to RJ 11 connector.

Click here for large picture Click here for large picture Click here for large picture
Click here for large picture Click here for large picture Click here for large picture
Click here for large picture Click here for large picture Click here for large picture
The cables it is from left to right: White-Orange-Brown-Blue The cable colors from old cable to new it is : Black --> Blue Green --> Orange Red --> Brown Yellow --> White and Ground
Click here for large picture Click here for large picture Click here for large picture
Here for better results , i have added two ferrites and the two end of the cable.One ferrite near to anemometer,and the other one near to RJ 11 connector
Click here for large picture Click here for large picture Click here for large picture