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Hybrid double quad antenna (Biquad antennas) . Directional quad antennas for 2m & 70cm. Double quad antennas are high performance dx antennas for hamradio, amateur radio |
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Hybrid double quad antenna (Biquad antennas) . Directional quad antennas for 2m & 70cm. Directional antenna for mobile (portable) and base station use. BAZ fabricates Hybrid Double Quad directional antennas for the 2m & 70cm-Band. All boom beams and items are surface-hardanodized. The cross-sectional area of the beam of the 2m antennas consists of 20x20mm, the 70cm antennas 15x20mm. For the items of the 2m antennas 10mm pipe diameter is applied, by the 70cm 5 mm full material.
The quad antenna is an antenna which is frequently used by amateur radio operators. It consists of a driven element and parasitic elements, like a Yagi; however, the elements are square loops.
Advantages over a Yagi-Uda
---> Higher Gain
The 2-element Quad has almost the same gain as a 3-element Yagi-Uda: about 7.5 dB over a dipole. Likewise, a 3-element Quad has more gain than a 3-element Yagi-Uda
---> Radiation Resistance approximately 50Ω
---> Lower Boom Height
---> Shorter Boom
---> Lower Angle Radiation
---> Broader Bandwidth
The bandwidth for a 3-element Quad antenna that is tuned for maximum gain is limited because excursions from the design frequency unbalance the near resonance condition of the parasitic elements. However, by lengthening the reflector and director elements, thus sacrificing approximately 1 dB gain, the entire 10 meter band may be worked with an SWR below 1.75:1.
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Detail Figure Double Quad Antennas |
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Hybrid double quad antenna (Biquad antennas) . Directional quad antennas for 2m & 70cm. Double quad antennas are high performance dx antennas for hamradio, amateur radio |
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Hybrid Double Quad Antenna 2m 2/HDQ5 (2/HDQ5) Double quad antenna with 50 ohm and 4 reflector elements. For horizontal and vertical polarisation, in front mast mounting. Technical details: G 8,5 dBd, V/R 20 dB, alpha E 67 , alpha H 54 , L 40 c...
119,00 EUR (incl. 19% USt. additional costs of delivery)
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Hybrid Double Quad Antenna 2m 2/HDQ11 (2/HDQ11) Double quad antenna with 50 ohm, 4 reflector elements as well as 2x3 director elements. For horizontal and vertical polarisation, in front of mast mounting. Technical details: G 12,5 dBd, V/R 21,5 ...
154,50 EUR (incl. 19% USt. additional costs of delivery)
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Hybrid Double Quad Antenna 2m 2/HDQ15 (2/HDQ15) Double Quad antenna with 50 ohm, 4 reflector elements as well as 2 x 5 director elements. Mounting centre mast, completely with 2 mast clamps. Technical details: G 13,5 dBd, V/R 22 dB, alpha E 48 ,...
185,00 EUR (incl. 19% USt. additional costs of delivery)
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Hybrid Double Quad Antenna 2/HDQ21-DX (2/HDQ21-DX) High performance Double quad antenna with 50 ohm , 4 reflector elements as well as 2 x 8 director elements. Mounting in centre of mast, additional beam boom, completely with 3 mast clamps. Technica...
238,50 EUR (incl. 19% USt. additional costs of delivery)
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Hybrid Double Quad Antenna 070/HDQ5 (070/HDQ5) Double quad directional antenna with 50 ohm, 4 reflector elements, front mast mounting, completely with mast clamp. Technical details: G 8,5 dBd, V/R 21 dB, alpha E 63 , alpha H 52 , L 16 cm, B 38 ...
89,00 EUR (incl. 19% USt. additional costs of delivery)
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Hybrid Double Quad Antenna 070/HDQ11 (070/HDQ11) Double Quad antenna with 50 ohm, 4 reflector elements as well as 2 x 3 director elements, front mast mounting, horizontal/vertically, completely with mast clamp. Technical details: G 12,5 dBd, V/R ...
122,50 EUR (incl. 19% USt. additional costs of delivery)
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Hybrid Double Quad Antenna 070/HDQ17 (070/HDQ17) Double quad antenna with 50 ohm, 4 reflector elements as well as 2 x 6 director elements, front mast mounting, completely with 2 mast clamps. Technical details: G 14 dBd, V/R 21,5 dB, alpha E 48 , ...
146,90 EUR (incl. 19% USt. additional costs of delivery)
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Hybrid Double Quad Antenna 070/HDQ27 (070/HDQ27) Double quad antenna with 50 ohm , 4 reflector elements as well as 2 x 11 director elements. Mounting centre of mast, completely with 2 mast clamps. Technical details: G 16,5 dBd, V/R 22 dB, alpha E...
174,90 EUR (incl. 19% USt. additional costs of delivery)
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