Topband: Beverages 2 basic questions

[Eduardo Araujo]

Many thanks Dean, Carl, Mike, Joel and the rest of you who shared your opinions about "why so many", probably I missed the point that 3 or 4 db in directivity loss because of deeps is much more important that I figured out and that could make a difference in a QSO or not.

Keep in mind that without considering a very few stations, being in LU land I am really far away from all highly ham populated zones 

About my second question...... no takers ?? 
I repeat it here again just in case.... I modified the text of the second test for more clarity 

Is there a meaninfull or simple way to determine if at my location is worth to go from 600 to 900 feet?

I did some measurements 
a) I injected a signal  into the beverage and using a current probe, I meassure signal strength in an Smeter. (I paralelled the mA with the input of a transceiver)

Variation was about 10db from begining to end of 900 feet. Curiously the 600 feet one gave me aprox same result but I recognize S meter granularity was not good.

b) Listening to an AM broadcast with the back of the antenna, I disconnected its termination resistance and the signal strength increased 8db.  
Normal response from 900 feet Bev gives about 20db F/B in broacast band 
 
Many thanks in advance to all.... Eddy, LU2DKT