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Array Solutions

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(214) 954-7140
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40 meter 2D-40 - 2 element beam

30 meter 2D-30 - 2 element beam

17 and 20 meter 2 element beams are now available.  See these antennas at the Cal-Av website > click here to visit Cal-Av. Remember to come back for best pricing.

40 meter DIP-40A - full size dipole 

30 meter DIP-30A - full size dipole

2D-40 FULL-SIZE 40M BEAM - Two driven elements for 40 meters provide maximum
bandwidth, and a front-to-rear ratio an S-unit (6 db) better than 2-element parasitic antennas.
Pattern advantage over typical shortened (e.g. linear-loaded) parasitic types is even greater.  The gain and Front/Rear ratios remain steady across the band. 

Their unique phase drive technique (U.S. Patent No. 6,411,264) is one of the reasons why this antenna performs so well. 

Heavy-duty construction provides years of reliable service. Innovative integral balun-hairpin feed and hardware rated at 5 KW. Gain, 6.5 dBi min; Front to rear, 20 dB min; VSWR, 1.5:1 max; each over the entire band. Boom: 16 Ft. Turn radius: 36 ft. Weight: 150 lbs. Wind survival: 100 MPH no ice. 

Projected area: 16 SqFt.; Effective area (RS-222-C): 10.7 SqFt. 

View these NEC2 PATTERNS of single 40-2Ds, a Stack of two of them, and compare them to a 3 element full sized 40 meter parasitic Yagi on a 46 foot boom. 

 

Please have a look at this article published in June 2001 CQ Contest by WX0B

"40 meter Yagi Antennas and Stacks" - by Jay Terleski, WX0B

 

     WX0B Stacked 40s and 20s

 

PRICING

Specifications 2D-40 Full size 40 Meter Beam

Description

The 2D-40 is a 2-driven-element array for the 40 meter
amateur band. It features full size elements, an internal
phasing line, and an innovative integral BALUN feed system.
 

This two element driven array carries a U.S. Patent No. 6,411,264


Physical Specifications

Wind Survival

The antenna is designed to reach the maximum
allowable stress for the aluminum material at an
actual airspeed across the elements in the worst
case direction of 106 Miles Per Hour (MPH). We
rate the elements to survive exposure to an
airspeed of 100 MPH. This rating does not take ice
loading into account.

Materials

Elements: Aluminum, 6061-T6.

Accessories: Aluminum, Stainless Steel, PVC, Acrylic

Size

Element Diameter: Elements taper from 2.50
inches to 0.375 inches

Element length: Front, 66.2 feet; Rear, 70.2 feet

Element sag: Front, 27.9 inches; Rear, 30.6 inches

Turn Radius: 36 feet

Weight: 150 pounds, including mounting plates
and hardware

Electrical Specifications

Rated Power: 5 KW CCS, 10 KW ICAS can be built for 30 KW

Feed point Impedance: Adjustable to exactly 50 Ohms

The VSWR bandwidth will be approximately as
follows when measured at the antenna terminals.
Measurements made at the transceiver end of the
feed line may show wider bandwidths than these. 

At WX0B we have two of these stacked and the 2:1 bandwidth is 300 Khz.

At WX0B we have two of these stacked and the 2:1 bandwidth is 300 Khz.
Pattern

Gain: 6.5 dBi minimum (free space), over the
entire 40 Meter Amateur Band.

4.3 dBd (relative to full size dipole at same height)
This number has been verified by actual measurement.

Front to back ratio: 20 dB over the whole band

Takeoff angle: 28 degrees when mounted at 66
foot height. See patterns and associated notes above.

Vertical Beamwidth: 33 degrees; -3dB 13 and 46
degrees when mounted at the 66 foot height. See patterns and associated
notes.

Horizontal Beamwidth: 74 degrees

Note: Please see patterns and graphs for more infomation.

Note: CAL-AV reserves the right to make and implement
design improvements without notice.

Specifications updated: 12/07/00

2D-30 FULL-SIZE 30M BEAM -  Two driven elements for 30 meters provide maximum
bandwidth, and a front-to-rear ratio an S-unit (6 db) better than 2-element parasitic antennas.
Pattern advantage over typical shortened (e.g. linear-loaded) parasitic types is even greater.  The gain and Front/Rear ratios remain steady across the band. 

This two element driven array carries a U.S. Patent No. 6,411,264

Heavy-duty construction provides years of reliable service. Innovative integral balun-hairpin feed and hardware rated at 3KW. Gain, 6.5 dBi min; Front to rear, 20 dB min; VSWR, 1.5:1 max; each over the entire band. Boom: 12 Ft. Turn radius: 26 ft. Weight: 54 lbs. Wind survival: 100 MPH no ice. 

Projected area: 8.4 SqFt.; Effective area (RS-222-C): 5.6 SqFt. UPS shippable

PRICING

Specifications 2D-30

Description

The 2D-30 is a 2-driven-element array for the 30 meter
amateur band. It features full size elements, an internal
phasing line, and an innovative integral BALUN feed system.
This beam has gain comparable to a 2-element Yagi, and a
front-to-back ratio comparable to a 3-element Yagi.

Physical Specifications

Wind Survival

The antenna is designed to reach the maximum
allowable stress for the aluminum material at an
actual airspeed across the elements in the worst
case direction of 106 Miles Per Hour (MPH). We
rate the elements to survive exposure to an
airspeed of 100 MPH. This rating does not take ice
loading into account.


Materials

Elements: Aluminum, 6061-T6.

Accessories: Aluminum, Stainless Steel, PVC, Acrylic


Size

Element Diameter: Elements taper from 1.875
inches to 0.375 inches

Element length: Front, 46.5 feet; Rear, 49.2 feet

Element sag: Front, 14.5 inches; Rear, 15.9 inches


Turn Radius: 25.3 feet

Weight: 54 pounds, including mounting plates and
hardware


Electrical Specifications

Rated Power: 1.5KW CCS, 3KW ICAS

Feedpoint Impedance: Adjustable to exactly 50
Ohms

The VSWR bandwidth will be approximately as
follows when measured at the antenna terminals.
Measurements made at the transceiver end of the
feedline may show wider bandwidths than these.

180 KHz For 1.4:1 VSWR
450 KHz For 2.0:1 VSWR
720 KHz For 2.6:1 VSWR

Pattern

Gain: 6.5 dBi minimum (free space), over the
entire 30 Meter Amateur Band.

4.3 dBd (relative to full size dipole at same
height) This number has been verified by actual
measurement.

Front to back ratio: 20 dB

Takeoff angle: 28 degrees when mounted at the 46
foot recommended height. See patterns and
associated notes.

Vertical Beamwidth: 33 degrees; -3dB 13 and 46
degrees when mounted at the 46 foot
recommended height. See patterns and associated
notes.

Horizontal Beamwidth: 74 degrees

Note: Please see patterns and graphs for more infomation.

Note: CAL-AV reserves the right to make and implement
design improvements without notice.

Specifications updated: 4/24/00

DIP-40A 40M FULL-SIZE ROTARY DIPOLE - Rotary dipole antenna for 40 meters is easily
mounted within a stack, parallel to other booms to add 30 meters with minimum interaction.
Heavy-duty construction and mounting. EB-1 balun feed, rated at 3KW. Turn radius 36.8 Ft.;
Weight, 63 lbs.; Wind survival, 100MPH, no ice; Projected area: 11.5 SqFt. Effective area
(RS-222-C), 7.7 SqFt. UPS shippable. 

PRICING

Specifications DIP-40A

Description

The DIP-40A is a rotatable dipole for the 40 meter
amateur band. It is an unloaded, full size element. It
will be noticeably quieter than a vertical, and when
mounted at the same feedpoint height, will exhibit
both higher efficiency and more gain than an inverted
vee.

It is constructed of multiple sections of 6061-T6
aluminum tubing. Successively smaller sections are
used from the center toward the tips of the element,
resulting in a tapered element. A mounting plate and
hardware which allow mounting the dipole on a 2"
mast are supplied with the antenna. (Mounting plates
for mounting the antenna on other sizes of masts are
available from the factory.) The mounting plate
includes insulators which electrically isolate the split
element from the mast mounting plate. A BALUN for
coaxial cable feed is supplied with the antenna. The
BALUN incorporates a UHF receptacle for connection of
the coax's UHF plug (e.g. a PL-259).

Physical Specifications

Wind Survival

The antenna is designed to reach the
maximum allowable stress for the aluminum
material at an actual airspeed across the
element in the worst case direction of 106
Miles Per Hour (MPH). We rate the element
to survive exposure to an airspeed of 100
MPH. This rating does not take ice loading
into account.

Materials

Elements: Aluminum, 6061-T6.

Accessories: Aluminum, Stainless Steel, PVC

Size

Element Diameter: elements taper from 2.50
inches to 0.375 inches

Element length: 73.58 feet

Element Sag: 32.35 inches

Turn Radius: 36.8 feet

Weight: 63 pounds, including mounting
plates, hardware, and supplied (0.5lb) EB-1
BALUN

Projected Area: 11.51 square feet

Electrical Specifications

Rated Power: 3kW CCS, 5KW ICAS

Gain: 2.15 dBi, 0 dBd; (this is a full-size
dipole)

Feed point Impedance: Approximately 73
Ohms

(This applies only at resonance and
recommended height above local earth. Both
resonant frequency and the resistive
component of the feed point impedance are
affected by the height above ground. See
VSWR Graph showing theoretical variation in
these parameters over frequency for various
mounting heights.)

VSWR Bandwidth: 2.0 to 1 or less over 460
KHz

The antenna may also be fed with 50 ohm
feed line. If it is, then the minimum VSWR
when mounted at the recommended height
will be 1.5 to 1.

Note: Please see patterns and graphs for more
information.

Note: CAL-AV reserves the right to make and
implement design improvements without notice.

Specifications updated: 10/2/00

 

DIP-30A 30M FULL-SIZE ROTARY DIPOLE - Rotary dipole antenna for 30 meters is easily
mounted within a stack, parallel to other booms to add 30 meters with minimum interaction.
Heavy-duty construction and mounting. EB-1 balun feed, rated at 3KW. Turn radius 26 Ft.;
Weight, 22 lbs.; Wind survival, 100MPH, no ice; Projected area: 4.6 SqFt. Effective area
(RS-222-C), 3.1 Sq Ft. UPS shippable.

PRICING

Specifications DIP-30A

Description

The DIP-30A is a rotatable dipole for the 30 meter amateur
band. It is an unloaded, full size element. It will be
noticeably quieter than a vertical, and when mounted at the
same feed point height, will exhibit both higher efficiency and
more gain than an inverted Vee.

It is constructed of multiple sections of 6061-T6 aluminum
tubing. Successively smaller sections are used from the
center toward the tips of the element, resulting in a tapered
element. A mounting plate and hardware which allow
mounting the dipole on a 2" mast are supplied with the
antenna. (Mounting plates for mounting the antenna on
other sizes of masts are available from the factory.) The
mounting plate includes insulators which electrically isolate
the split element from the mast mounting plate. A BALUN
for coaxial cable feed is supplied with the antenna. The
BALUN incorporates a UHF receptacle for connection of the
coax's UHF plug (e.g. a PL-259).

Physical Specifications

Wind Survival

The antenna is designed to reach the maximum
allowable stress for the aluminum material at an
actual airspeed across the element in the worst
case direction of 106 Miles Per Hour (MPH). We
rate the element to survive exposure to an
airspeed of 100 MPH. This rating does not take ice
loading into account.

Materials

Elements: Aluminum, 6061-T6.

Accessories: Aluminum, Stainless Steel, PVC


Size

Element Diameter: elements taper from 1.875
inches to 0.375 inches

Element length: 50.75 feet

Element Sag: 16.7 inches

Turn Radius: 25.38 feet

Weight: 21.5 pounds, including mounting plates,
hardware, and supplied (0.5lb) EB-1 BALUN

Projected Area: 4.2 square feet

Electrical Specifications

Rated Power: 3 KW CCS, 3KW ICAS

Gain: 2.15 dBi, 0 dBd; (this is a full-size dipole)

Feed point Impedance: Approximately 73 Ohms

(This applies only at resonance and recommended
height above local earth. Both resonant frequency
and the resistive component of the feed point
impedance are affected by the height above
ground. See VSWR Graph showing theoretical
variation in these parameters over frequency for
various mounting heights.)

VSWR Bandwidth: 2.0 to 1 or less over 600 KHz

The antenna may also be fed with 50 ohm feed line.
If it is, then the minimum VSWR when mounted at
the recommended height will be 1.5 to 1.

Note: Please see patterns and graphs for more
information. Download the DIP-30A Manual Adobe Acrobat
file.

Note: CAL-AV reserves the right to make and implement
design improvements without notice.

Specifications updated: 12/07/00