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Your coaxial cable from the radio connects direct to the
DXE-1023
N-Type bulkhead connector
installed on the
DXE-RADP-3
Radial Plate as shown in
Figure 13
. Weatherproofing this coaxial
connection using
TES-06132
- Scotch
®
Super 33+ and
TES-2155
- 3M Temflex
™
2155 Rubber
Splicing Tape is highly recommended.
Tuning the Vertical Antenna System
The use of a customer supplied, high quality outboard tuner is required for any multi-band trapless
vertical antenna system. The tuner should be capable of tuning the wide range of impedances
presented by the antenna and coaxial cable at all the operating frequencies. Tuners of this type
generally have a good quality variable roller inductor and at least one large variable capacitor for
fine tuning.
There are a number of outboard automatic antenna tuners available that are capable of tuning this
type of high performance vertical antenna system.
Tuners which are built into transceivers usually lack sufficient impedance tuning range for this type
of high performance vertical antenna system.
The actual impedance of the multi-band antenna is affected by local conditions, including proximity
to structures, other antennas, number of radials or personal preference for the mounting location. It
may be necessary to adjust the top element section slightly longer or shorter, or to vary the length of
the coaxial cable, if tuning to best SWR is not achieved with your tuner on all bands.
The performance of this versatile, rugged antenna is highly dependent on the ability of your tuner to
deliver a low SWR when tuned. Refer to your tuner user's manual for correct tuner operation.
