[TowerTalk] Radials, grounding, etc., for a new (to me) tower

[John Adkins]

I tried sending this once, but I don't believe it took--
 
 I'm putting up a 75' telescoping US Tower.  I would like some advice, since this is my first
 endeavor into towers.  Here is the plan for my situation:
                     ___________________________
 Plan:       _______| <--40'------------------>|           
       A     |               A                 |            
       |     |               |           Shack |________
    Front    |               | House       on  |       |
      of     |              20'          Third |       |
   House     |               |           Floor |Deck   |
             |______         |            Here |       |
                 { }|________V_________________|       |
                 { }                |                  |
                                    |__________________|
{ } is the proposed location for the antenna.  The base will be at the level of the basement
floor.  The shack is in the attic, 3 floors above the basement.  I'll be putting a 5' cube of
concrete as a base. 
What should I do about radials, ground wire, etc.  Right now, the ground wire is a (very)long run
of 12-2 down and around the deck to a single ground rod.  The deck is the roof for a
basement-level bedroom and bathroom.  The I am restricted regarding radials, etc., because the
area behind the antenna and the house is an asphalt-paved driveway.
 
Suggestions are appreciated.
 
Thanks
John
w4kv