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Page 28
CHAPTER THREE
DRIVEN ELEMENT (continued)
ATTACH THE ELEMENT MOUNTING PLATE—DRIVEN
The DB36 Driven loop element is 49 feet in length. The other two loop elements (REF& DIR 2) on the
DB36 are 39 feet in length. There is a reason for this— by having the middle loop element 49 feet, it
electrically makes the two end elements perform as if they are 49 feet in length too. This is the basis
for one of the SteppIR patents and is fundamental in the outstanding performance the DB36 delivers on
the 40m and 30m bands while being 40% shorter than a full sized Yagi on those bands.
The construction of the Driven element is the most complex portion of the DB36 installation process.
To make life easier for the installer, we have condensed this procedure into four separate sections.
Figure 3.02
shows the items required for installing the element mounting plate for the Driven element.
Detailed instructions follow. Note that the KEY letters referenced match up to the ones in
figure 3.01.
Key
QTY
Part
Number
Description
A
4
60-0066
5-1/6” X 4” Hex head bolt
H
4
10-1601-32 2-1/4” Aluminum saddle half
D
4
60-0046
5/16” Nylock nut
G
1
10-1605-11 Element mounting plate
I
2
10-1606-01 Reinforcing plate
A
A
G
A
A
H
H
H
H
D
D
D
D
I
I
FIG. 3.02
