BARKER WILLIAMSON AC - 110, ACS - 110N, ACI - 110N User Manual

BARKER & WILLIAMSON

6025 TECHNOLOGY DR

W MELBOURNE, FL 32904

MODEL AC - 110 ANTENNA

MODEL ACS - 110N ANTENNA

MODEL ACI - 110N ANTENNA

321-676-8354

The Barker & Willamson Broadband End-Fed Vee Antenna is designed for operation from 1.8 MHZ to 30 Mhz. The
antenna comes fully assembled and pretuned so no measuring or cutting is required. It is all weather rated at 1KW PEP
CW/SSB ICAS (Intermittent Commercial and Amateur Service), and permits use of the full capabilities of today’s
continuous coverage transceivers. An added feature is single feedline operation for all bands and provides excellent
performance for military, emergency management, commercial, and amateur installations.

The AC antenna is fabricated with #14 stranded copperweld wire, the ACS with #14 stranded stainless steel wire, and the
ACI utilizes PVC insulated copper. All feature a high impact plastic balun and matching network. The feedline impedance
is 50 ohms and comes equipped with an SO-239 (Female) connector for the AC, and N connector (female) for the ACS/ACI.

The antenna is generally mounted in an inverted vee configuration. With the center 25 - 30 feet off the ground, approximately
95 feet of space is required. This configuration provides best omni-directional radiation.

INSTALLATION INSTRUCTIONS

WARNING

Outdoor antennas and lead-in conductors from antenna to building shall not cross over electric light or power circuits
and shall be kept well away from all such circuits so as to avoid the possibility of accidental contact. Where proximity
to electric light or power service conductors of less than 250 volts cannot be avoided, the installation shall be such so
as to provide a clearance of at least 2 feet. Where practical, antenna conductors shall be installed so as to not cross
under electric light or power conductors.

(1) Determine how and where the antenna will be installed. Study all of the illustrations to determine which installation
best fits your individual requirements. Trees, sides of a building, utility poles, etc. make good supports. Supports may
be conductive such as a metal pole, but be certain to use insulators to keep the antenna wire from making contact.

The antenna may be set up in shapes other than those shown, or shortened, with minimal effect on the SWR. However, the
radiation efficiency at the lower frequencies will be reduced somewhat. DO NOT INSTALL PARALLEL TO POWER LINES.

(2) When unpacking and installing the antenna, avoid twisting or kinking the wire.

(3) The antenna ends may be attached various ways (refer to figures 1 - 3). When mounting off theground, Good ground
rods are recommended at each end. The counterpoise wire should connect to the ground side of the balun and balancing
network. The antenna may work best with the counterpoise not connected to the ground side of the balancing network.
Try both to determine best results for your installation. The counterpoise is essential in poor ground, dry soil, or above
ground installations. Its length is not critical, and it does not have to run directly under the antenna wire.

(4) When installing, ensure that the drain hole in the body of the balancing network is facing down. See figure 4.

(5) A good quality 50 ohm coaxial cable should be used for the feedline. Length is not critical, but best longer than 50 feet.

(6) The antenna is broadband and pretuned at the factory for an average SWR of 1.4:1 with a maximum of 2.0:1, depending
upon the frequency used and surrounding objects, ground conditions, etc. If you wish to optimize performance, experiment

with the counterpoise and the grounds, taking SWR readings as a guide.

(1)

8/12

(2)