QST 2012-04.pdf

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APRIL 2012
QST
Vol 96 No 4
$4.99
US $6.99 Can.
Cushcraft R8
8-Band
30, and 40 Meters!
MA-5B
5-Band
Beam
Vertical
Covers 6, 10, 12, 15, 17, 20,
$
539
95
R-8
The R-8
provides
360
O
(omni)
coverage on
the horizon
and a low
radiation
angle in the
vertical
plane for a
better DX.
The
Cushcraft R8 is recognized as the industry gold
standard for multi-band verticals, with thousands in use
worldwide. Efficient, rugged, and built to withstand the
test of time, the R8's unique ground-independent design
has a well-earned reputation for delivering top DX results
under tough conditions. Best of all, the R8 is easy to
assemble, installs just about anywhere, and blends incon-
spicuously with urban and country settings alike.
Automatic Band Switching:
The R8's famous
"black box" matching network combines with
traps and parallel resonators to cover 8 bands.
You QSY instantly, without a tuner!
Rugged Construction:
Thick fiberglass insula-
tors, all-stainless hardware, and 6063 aircraft-alu-
minum tubing that is double or triple walled at key
stress points handle anything Mother Nature can dish out.
Compact Footprint:
Installs in an area about the size
of a child's sandbox -- no ground radials to bury and all
RF-energized surfaces safely out of reach.
Legal-Limit Power:
Heavy-duty components are con-
test-proven to handle all the power your amplifier can
legally deliver and radiating it as RF rather than heat.
The
sunspot count is climbing and long-awaited band
openings are finally becoming a reality. Now is the per-
fect time to discover why Cushcraft's R8 multi-band ver-
tical is the premier choice of DX-wise hams everywhere!
R-8GK, $56.95.
R-8 three-point guy kit for high winds.
Small Footprint -- Big Signal
$
499
95
MA-5B
Cushcraft Dual Band Yagis
Only
the best tri-band antennas
become DX classics, which is
why the Cushcraft World-Ranger
A4S, A3S, and A3WS go to the
head of the class. For more than
30 years, these pace-setting per-
formers have taken on the world's
most demanding operating condi-
tions and proven themselves every
time. The key to success comes
from attention to basics. For example, ele-
ment length and spacing has been carefully
refined over time, and high-power traps are
still hand-made and individually tuned
using laboratory-grade instruments. All this
Cushcraft 10, 15 & 20 Meter Tribander Beams
$
The
MA-5B is one of Cushcraft's most popular
HF antennas, delivering solid
signal-boosting direc-
tivity
in a bantam-weight package. Mounts on roof
using standard TV hardware. Perfect for exploring
exciting DX without the high cost and heavy lifting
of installing a large tower and full-sized array. Its 7
foot 3-inch boom has less than 9 feet of turning
radius. Contest tough -- handles 1500 Watts.
The
unique MA-5B gives you 5-bands, automatic
band switching and easy installation in a compact
26-pound package. On 10, 15 and 20 Meters the end
elements become a two-element Yagi that delivers
solid power-multiplying gain over a dipole on all
three bands. On 12 and 17 Meters, the middle ele-
ment is a highly efficient trap dipole. When working
DX, what really matters are the interfering signals
and noise you
don't hear.
That’s where the MA-5B’s
impressive side rejection and front-to-back ratio really
shines.
See
cushcraftamateur.com
for gain figures.
It goes without saying that
the World-Ranger lineup is
also famous for its rugged
construction. In fact, the
majority of these antennas
sold years ago are still in
service today! Conservative
mechanical design, rugged
over-sized components,
stainless-steel hardware, and aircraft-grade
6063 make all the difference.
The
3-element A3S/A3WS and 4-element
A4S are world-famous for powerhouse gain
and super performance.
A-3WS, $499.95,
12/17 M.
30/40 Meter
add-on kits
available.
599
95
A-3S
$
699
95
A-4S
attention to detail means low SWR, wide
bandwidth, optimum directivity, and high
efficiency -- important performance charac-
teristics you rely on to maintain regular
schedules, rack up impressive contest scores,
and grow your collection of rare QSLs!
One Yagi for Dual-Band FM Radios
AR-2
AR-6
Dual-bander VHF rigs are
A270-10S
$
95 $
95 $
$
95
the norm these days, so
why not compliment your
FM base station with a
dual-band Yagi? Not only
will you eliminate a costly
feed
line, you'll realize extra
A270-6S
95
gain for digital modes like
$
high-speed packet and D-
Star! Cushcraft's A270-6S
provides three elements
per band and the A270-
10S provides five for solid
point-to-point performance. They're both
pre-tuned and assembly is a snap using the
fully illustrated manual.
Cushcraft Famous
Ringos
Compact FM Verticals
169
64
99
109
AR-10
W1BX's
famous
Ringo
antenna has been around
for a long time and remains unbeaten for solid
95
reliability. The Ringo is broad-banded, lighting
protected, extremely rugged, economical, elec-
trically bullet-proof, low-angle, and more -- but
mainly, it just plain works! To discover why hams
and commercial two-way installers around the
world still love this antenna, order yours now!
129
and Nearest Dealer . . . 662-323-5803
Call your dealer for your best price!
Amateur Radio Antennas
Free
Cushcraft Catalog
Cushcraft
308 Industrial Park Road, Starkville, MS 39759 USA
• Sales/Tech:
662-323-5803 •
FAX:
662-323-6551
Open: 8-4:30 CST, Mon.-Fri.
Add Shipping.
Cushcraft . . . Keeping you in touch around the globe!
Visit www.cushcraftamateur.com
Prices/specifications subject to change without notice/obligation.
(C)
Cushcraft
R
, 2010.
http://www.cushcraftamateur.com
The engineering staff at COMET Antenna Company presents three new products!
CMX-2300
TWIN Cross-Needle SWR/Power Meters
Left Side Meter 1.8-200MHz:
Max Power 3kW
Right Side Meter 140-525MHz:
Max Power 200W
Average and PEP power selector switch
FWD, REF, SWR readings displayed simultaneously.
Separate ANT/TX connectors allow both meters
to be used at the same time - Low loss circuitry - Illuminated
CHV-5X
40/20/15/10/6M Rotatable Dipole
HOA antenna restrictions? Limited space? Want to operate with a
low profile? Need a small, multi-band HF/6M antenna for portable/
emergency use?... The CHV-5X is a great choice! Lightweight,
compact, rotatable half-wave center fed dipole. Assembles in
several configurations: “V”, “horizontal”, or as a “ground plane”.
Each band tunes independently with sliding tuning stubs
Length:
Approx 13 ft (assembled horizontally)
Weight:
5 lbs 14ozs (inc mounting plate and balun)
Max Power:
40/20M: 150W SSB 15/10/6M: 220W
CAA-500
Cross Needle SWR and Impedance Analyzer
Dual cross-meter real-time analog display of SWR and total
impedance with high accuracy.
Seven frequency ranges (Including 222 MHz!) extending
up to 500 MHz!
Thumb-wheel frequency adjustment for effortless sweeps of
antenna operating range.
Two antenna jacks, "SO-239" and "N" (above 300 MHz).
Internal battery power or external DC (8 - 16 Volts).
For a complete catalog, call or visit your local dealer.
Or contact NCG Company. 15036 Sierra Bonita Lane, Chino, CA 91710
909-393-6133 • 800-962-2611 • FAX 909-393-6136 • www.natcommgroup.com

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