Portable Dual-Band
Vertical/Horizontal Antenna
User Guide
Nevada - USA
WWW.CHAMELEONANTENNA.COM
VERSATILE – DEPENDABLE – STEALTH – BUILT TO LAST
Dual-Band Antenna Page 2
Table of Contents
Introduction .............................................................................................................................................. 3
VHF/UHF Propagation ............................................................................................................................... 3
Portable Dual-Band Vertical/Horizontal Antenna Description ................................................................. 4
Parts of the Portable Dual-Band Vertical/Horizontal Antenna ................................................................. 4
Assembling the Portable Dual-Band Vertical/Horizontal Antenna ........................................................... 5
Troubleshooting ........................................................................................................................................ 7
Specifications ............................................................................................................................................ 7
Warranty ................................................................................................................................................... 8
Accessories ................................................................................................................................................ 9
Chameleon AntennaTM Products .............................................................................................................. 9
References .............................................................................................................................................. 10
WARNING! Never mount this, or any other antenna near power lines or utility wires! Any materials:
ladders, ropes, or feedlines that contact power lines can conduct voltages that kill. Never trust insulation to protect
you. Stay away from all power lines.
WARNING! Never operate this antenna where people could be subjected to high levels of RF exposure,
especially above 10 watts or above 14 MHz. Never use this antenna near RF sensitive medical devices, such as
pacemakers.
All information on this product and the product itself is the property of and is proprietary to Chameleon AntennaTM.
Specifications are subject to change without prior notice.
!
!
Dual-Band Antenna Page 3
Introduction
Thank you for purchasing and using the Chameleon Antenna
TM
Portable Dual-Band Vertical/Horizontal Antenna. This
antenna, shown in plate (1), will enable operation on both the 144 MHz (2m) and 440 MHz (70cm) Amateur Radio
Service bands in both vertical and horizontal polarization configurations. This innovative antenna concept is
designed to be the most versatile and rugged portable Very High Frequency (VHF) / Ultra High Frequency (UHF)
antenna available and will enable the operator to communicate on CW and SSB using horizontal polarization and on
FM simplex and repeaters using vertical polarization with one simple antenna whip change.
Plate 1. Portable Dual-Band VHF/UHF Antenna.
The Chameleon Antenna
TM
Portable Dual-Band
Vertical/Horizontal Antenna is an ideal accessory for
the Modular Portable Antenna System (MPAS) as part
of a total portable communication system. It will
greatly extend communications range when using a
portable VHF/UHF hand-held transceiver (HT) as
compared to the typical flexible whip “rubber duck”
antenna. The Portable Dual-Band Vertical/Horizontal
Antenna also provides horizontally polarized
capability, that is usually forgotten by most
manufacturers of portable VHF/UHF antennas, for
use with transceivers that have CW/SSB modes. It is
especially suitable for use when camping or in a
Recreational Vehicle (RV), apartment, condominium,
HOA, or inside an attic - anywhere you need
portability or have limited space or restrictions
against permanent antennas. It would also be useful
as a backup base station antenna or for EMCOMM.
The Chameleon Antenna
TM
Portable Dual-Band
Vertical/Horizontal Antenna is made from a durable
weather-resistant case and easily attaches to an
antenna mast that has a 3/8” x 24 stud socket, such
as the CHA MIL EXT 2.0 collapsible mast or the CHA
JAW MOUNT (both sold separately).
Antennas and antenna accessories built by
Chameleon Antenna
TM
are versatile, dependable,
stealthy, and built to last. Please read this user guide
so that you may maximize the utility you obtain from
your Chameleon Antenna
TM
Portable Dual-Band
Vertical/Horizontal Antenna.
VHF/UHF Propagation
VHF and UHF radio provides relatively inexpensive and reliable local voice and data communication capability. It is
especially suitable for local areas where normal telecommunications are not available, too costly or scarce, or where
the commercial telecommunications infrastructure has been damaged by a natural disaster or military conflict.
Although VHF/UHF radio is a reasonably reliable method of communication, VHF/UHF radio waves propagate
through a complex and constantly changing environment and are affected greatly by terrain and to a lesser extent,
weather. A detailed explanation of the theory of VHF/UHF radio wave propagation is beyond the scope of this
operator’s manual, but an understanding of the basic principles will help the operator decide what frequency,
communications mode, and polarization will support their communication requirements.
VHF/UHF radio waves propagate from the transmitting antenna to the receiving antenna using two general methods:
line-of-sight and refraction.
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