Greetings Maypo,
I assume you have removed the old antenna. The DB8 is a fairly large
antenna, with significant loading and as such, I would not go beyond
5 feet for the mast above the rotor. With the wind, Ice and snow you
can expect, I would say that 5 feet is a safe bet. You best and most
difficult way to increase height would be to extend the mast BELOW
the rotor. Then, guy wires would be necessary.
|