- 5 -
Determining the Length of the Rods
To determine the lengths of the rods, refer to
Table 2
and do the following:
1.
Beginning with the leftmost column of
Table 2
, read down successive columns of numbers until
you reach the intended frequency or slightly below.
2.
Note the configuration in the first column associated with that frequency.
3.
If that configuration is acceptable, then build the design as outlined in "Assembling the
Antenna".
4.
If that configuration is not acceptable - too many rods or too long, for instance - then read down
the next column to the right to obtain the desired frequency.
5.
If the configuration is still not acceptable, then continue reading columns until you find an
acceptable arrangement for the frequency of interest.
Notes:
To achieve the highest efficiency, use the smallest resonator possible for the desired frequency.
To adjust the antenna to a frequency not listed on
Table 2
, refer to "Selecting the Frequency".