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Antennas

Click picture for enlargement

2D-40A at 65 feet (half wave) for
testing at the Visalia DX convention.
Tower courtesy of U. S. Towers

See pictures of individual and stacked CAL-AV antennas on the WX0B site.

Read the in-depth CQ-Contest article by WX0B, comparing 40M antennas.

View the NEC-2 Patterns of single 2D-40A's, a stack of two of them, and a comparison of them to a 3-element, full-size 40 meter Yagi on a 46-foot boom.

2 Element Array Antennas

2D-40A FULL-SIZE 40M BEAM - Two driven elements for 40 meters provide maximum bandwidth, and a front-to-rear ratio an S-unit better than 2-element parasitic antennas. Pattern advantage over shortened (e.g. linear-loaded) parasitics is even greater. Heavy-duty construction provides years of reliable service. Patented integral balun-hairpin feed and hardware rated at 3KW. Gain, 6.5 dBi min; Front to rear, 20 dB min; VSWR adjustable to 1:1; 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. Price $2895 UPS shippable.
Specifications / EZNEC Models / Yagi-Stress Model

2D-30A FULL-SIZE 30M BEAM - Two driven elements for 30 meters provide maximum bandwidth, and a front-to-rear ratio an S-unit better than 2-element parasitic antennas. Pattern advantage over shortened (e.g. linear-loaded) parasitics is even greater. Heavy-duty construction provides years of reliable service. Patented 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. Price $1095 UPS shippable.
Specifications / EZNEC Models / Yagi-Stress Model

Click picture for enlargement

2D-30A at 46 ft. ( half wave) for testing.
Guys are Phyllistran.

2D-30A under a 3-element 17M Yagi at EA5GNI

2D-20A FULL-SIZE 20M BEAM - Two driven elements for 20 meters provide maximum bandwidth, and a front-to-rear ratio an S-unit better than 2-element parasitic antennas. Pattern advantage over shortened (e.g. linear-loaded) parasitics is even greater. Heavy-duty construction provides years of reliable service. Patented 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: 8.5 Ft. Turn radius: 18.5 ft. Weight: 38.5 lbs. Wind survival: 100 MPH no ice. Projected area: 4.7 SqFt.; Effective area (RS-222-C): 3.1 SqFt. Price $693 UPS shippable.
Specifications / EZNEC Models / Yagi-Stress Model

2D-17A FULL-SIZE 17M BEAM - Two driven elements for 17 meters provide maximum bandwidth, and a front-to-rear ratio an S-unit better than 2-element parasitic antennas. Pattern advantage over shortened (e.g. linear-loaded) parasitics is even greater. Heavy-duty construction provides years of reliable service. Patented 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: 6.0 Ft. Turn radius: 13.75 ft. Weight: 18.5 lbs. Wind survival: 100 MPH no ice. Projected area: 2.8 SqFt.; Effective area (RS-222-C): 1.9 SqFt. Price $595 UPS shippable.
Specifications / EZNEC Models / Yagi-Stress Model

Rotatable Dipole Antennas

DIP-40A 40M FULL-SIZE ROTATABLE 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. Price $1095 UPS shippable. Specifications

DIP-30A 30M FULL-SIZE ROTATABLE 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 SqFt. Price $395 UPS shippable. Specifications

DIP-20A 20M FULL-SIZE ROTATABLE DIPOLE - Rotary dipole antenna for 20 meters is easily mounted within a stack, parallel to other booms to add 20 meters with minimum interaction. Heavy-duty construction and mounting. EB-1 balun feed, rated at 3KW. Turn radius 18 Ft.; Weight, 12.5 lbs.; Wind survival, 100 MPH, no ice; Projected area: 2.5 SqFt. Effective area (RS-222-C), 1.6 SqFt. Price $225 UPS shippable. Specifications

DIP-17A 17M FULL-SIZE ROTATABLE DIPOLE - Contact the CAL-AV factory.

Self Supporting Vertical Antennas

VSS-40A Full Size ¼ Wave - Check with factory.

VSS-30A Full Size ¼ Wave- Check with factory.

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