adjustment made between the base and the first trap automatically changes all of the
bands.
a. If it favors the low end, shorten the 10- meter adjustment one inch or no
more than 1 1/2 inches. Run another VSWR measurement. Now you will
have an indication of how far that distance moved the antenna in your
location.
Make what additional adjustments are indicated by the VSWR curve to put 10 meters
exactly on the portion of the band you desire as your center operating frequency.
b. If the antenna favors the high end, lengthen the dimension
correspondingly to move the antenna to a lower frequency as outlined
above.
5. Next, repeat this same procedure for 15 meters to put that band on frequency.
6. The same procedure is then used to set up the 20-meter band, as well as the remaining
bands available, depending upon the model involved.
7. Most verticals are monopole antennas or half of a dipole. For this reason, the soil
conditions, when the antenna is ground mounted, are important as it makes up the other
half of the antenna. When you roof mount the antenna, radials must be used as outlined in
the assembly instructions, to provide the other half of the antenna.
Lightning Protection
For maximum lightning protection, we recommend the use of a Hy-Gain LA-1 Lightning
Arrestor, available from your Hy-Gain dealer. Your antenna is now ready to use.
Figure 8
