|
These antennas are so unique that
they were even patented! They can offer fully automatic, low SWR operation over
the entire HF band without need for an antenna tuner, plus 6 meters with
a tuner. Yes, that includes the new 60 meter band. They
are frequency agile, which is a necessity to operate ALE capable radios. They
will propagate NVIS, local, medium or long distance. Try that with a vertical!
Delivery of the quietest possible reception is integral to the design, with automatic
static bleed off from wind or thunderstorms. Ready to go right out of the
box, no taps to change, nothing to tune - ever! Designed for the military
and built to last. Work any frequency you want without going
through a lot of knob twirling and measurements to get a good SWR match - just
set your frequency and go!
Why utilize
a broadband antenna?
| MARS,
ARES, RACES, CAP, Amateur |
This one antenna does all of your "out
of band" frequencies! If your frequencies change it isn't a problem.
For regular amateurs, it is a single antenna solution. |
|
Cost |
Low cost compared to multiband antennas.
Utilize one antenna instead of several. No need for an antenna
tuner. No antenna switches needed. |
|
Performance |
Not limited to conventional ham bands. Tune
any HF frequency in the antenna's bandwidth, and have
VSWR of 2:1 or better. 6 M VSWR of 3:1 or better. Capture weak
signals in receive mode. Much better performance than any vertical.
Very reliable.
|
|
Simple to Install |
Easy to install as inverted Vee, flat top, or
sloper. Just put it up! No adjustments of any kind. No tuning.
Completely assembled. No grounds to play with. Installation
kit available (FDMK). |
|
Simple to Use |
Work any frequency you want without going through
a lot of knob twirling and measurements to get a good SWR match. |
This unique antenna design covers
a continuous frequency range up to 1.8 to 30 Mhz, with a VSWR of less than 2:1
across the entire range when fed with a 50 ohm coaxial cable. No antenna
tuner is required for HF for most radios. The fact that this antenna is folded over
on itself and terminated gives the advantage of EMI rejection far greater than that
of other antennas, making receive mode extra quiet. There are no adjustments required
when changing frequency, making operation fast and simple for contests or emergency
work. There are no mechanical parts like relays or motors to wear
out, as in some other broadband tuning systems!
It's Simple . . . It's Reliable . . . It
Works!
These antennas are ruggedly built.
We use only stranded copperclad steel, and stranded stainless steel wire. Properly
mounted they will withstand hurricanes. Tens of thousands are in service on every
continent in the world, from the tropics to the antarctic regions. Installation
is simple, allowing configuration as an inverted Vee, flat top, or sloper. Recommended
minimum height above ground for 80 meter operation is 25 feet, 40 feet for 160 meters.
The higher the installation, the more effectively the antenna will radiate, especially
at the lower frequencies. NVIS propagation is performed as a flat top at
6 - 12 feet, and will radiate approx 250 miles omnidirectional with no skip.
|
This antenna was designed
at Barker & Williamson at the request of the United States Government more
than 25 years ago. Since then we have supplied tens of thousands of
them to the U.S. Armed Forces and many other military organizations including
NATO, UN, international disaster relief organizations, emergency management
operations, and countless commercial organizations around the world.
It is also a favorite among amateur operators. They can be found on
every continent in the world, including Antarctica. From the desert,
to tropical rain forests, to frozen tundra - we know that they are very tough and deserve their excellent reputation for performance worldwide.
|
Choose the correct model for your needs
Always use the longest antenna that will fit
your space, as it will have better radiation efficiency at the low frequencies and
give you a stronger signal.
Copperweld Antennas
- Model
|
- Length
|
SWR
<2:1 |
SWR
<3:1 |
Use |
- BWD-20
|
- 20 Ft
|
- 14 - 30 Mhz
- 20 - 10 M
|
- 30 - 54 Mhz
- 6 meters
|
- Attic antenna for 20 - 6 M
|
- BWD-45
|
- 45 Ft
|
- 7 - 30 Mhz
- 40 - 10 Mtrs
|
- 30 - 54 Mhz
- 6 meters
|
- Larger attic antenna covers 40 - 6 M
|
- BWD-65
|
- 65 Ft
|
- 4 - 30 Mhz
- 75 - 10 Mtrs
|
- 30 - 54 Mhz
- 6 meters
|
- Short MARS antenna
|
- BWD-90
|
- 90 Ft
|
- 1.8 - 30 Mhz
- 160 - 10 Mtrs
|
- 30 - 54 Mhz
- 6 meters
|
- Covers all of HF in 90 Ft
|
- BWD-180
|
- 180 Ft
|
- 1.8 - 30 Mhz
- 160 - 10 Mtrs
|
- 30 - 54 Mhz
- 6 meters
|
- Enhanced 160 M, about 1 S-unit better
|
Stainless Steel Antennas
- Model
|
- Length
|
SWR
<2:1 |
SWR
<3:1 |
Use |
- BWDS-20N
|
- 20 Ft
|
- 14 - 30 Mhz
- 20 - 10 M
|
- 30 - 54 Mhz
- 6 meters
|
- Extra short outdoor antenna
|
- BWDS-45N
|
- 45 Ft
|
- 7 - 30 Mhz
- 40 - 10 Mtrs
|
- 30 - 54 Mhz
- 6 meters
|
- Short outdoor antenna
|
- BWDS-65N
|
- 65 Ft
|
- 4 - 30 Mhz
- 75 - 10 Mtrs
|
- 30 - 54 Mhz
- 6 meters
|
- Short MARS antenna
|
- BWDS-90N
|
- 90 Ft
|
- 1.8 - 30 Mhz
- 160 - 10 Mtrs
|
- 30 - 54 Mhz
- 6 meters
|
- Covers all of HF in 90 Ft
|
- BWDS-180N
|
- 180 Ft
|
- 1.8 - 30 Mhz
- 160 - 10 Mtrs
|
- 30 - 54 Mhz
- 6 meters
|
- Enhanced 160 M, about 1 S-unit better
|
Common Specifications:
-
SWR less than 2:1 over entire HF frequency range for the model
-
SWR less than 3:1 from 30 - 54 Mhz
-
Lowest noise for unmatched reception
-
No antenna tuner required for HF
-
2 KW PEP Input Power, 1 KW PEP Output Power SSB/CW ICAS (Intermittent Commercial and Amateur Service)
-
#14 stranded copperweld or stainless steel
-
50 ohm input with SO-239, N connector on S/S models
-
Comes completely assembled, easy to install
-
Install as inverted Vee, flat top, or sloper
-
Mounting kit FDMK for three pole installations available
You must use FDMK / three pole installation
for 180 foot antenna.
Old Part Number Cross Reference:
 
Copyright © 1997 - 2010
Barker & Williamson - All rights reserved |