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    80-40-20-15-10 m
    HF antenna W3DZZ+5


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    Netto price ( ˆ97.6 )
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    Total ˆ00000

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    Electrical specifications
    Model W3DZZ+5
    Operating frequency band, MHz
    80 m VSWR no more 2 3.5-3.8 MHz
    40 m VSWR no more 2 7.0-7.2 MHz
    20 m VSWR no more 2 14.0-14.35 MHz
    15 m VSWR no more 1,5 21,0-21,32 MHz
    10 m VSWR no more 2 28-29,5 MHz
    Impedance, Ohm 50
    Connector SO-239
    Max. power input, W 1000 (SSB, CW) (300 W for 7 MHz)
    Length, m 36
    Weight, kg 2,35

    The attempts to introduce the three-band dipole w3dzz+3 into the European market led to an interesting acquaintance with a new design of an old antenna which additionally had the bands of 21 and 28 MHz. That design was suggested to me by a well-known Finnish radio amateur Jukka Heikinheimo OH2BR who, in turn, got to know about the modification from his friend OH2EC.

    The new antenna is shown in the figure below. Its differences from the predecessor are as follows:

    • the antenna is powered through a 1/4 wave transformer with the resistance of 75 ohm, which improves matching at 14 MHz without considerable decreases in other bands;
    • two hanging whiskers at last made it possible to “start” the antenna in the band of 21 MHz with an excellent standing wave ratio;
    • the selection of LC - elements in the antenna traps is optimized for a successful compromise of resonances in the bands of 80 m and 20 m.

      Antenna W3DZZ+5

      The diagram of standing wave ratio


      Responses

      Many thanks for the antenna we used last year and we hope that you saw the write up we posted on our site.

      Many thanks to IK - Telecom for Supporting this Expedition.

      Their "W3DZZ+5" antenna worked fantastically!

      Through the windy conditions on North Uist the antenna held together brilliantly, propogation and natural noise (QRN) was slightly against us but still we had great reports back with it cutting through the noise to contacts up and down the country plus those who we contacted further affield across the water,

      I would Happily Recommend this antenna to anyone and everyone I come accross for either a Portable holiday or even a fixed station use,

      Its very light, easy to set up and tunes perfectly

      The set up i was using with this antenna was a Yaesu FT 897 with LDG AT-897 Tuner. No problems at all tuning 80m through to 10m

      The receive side of the antenna was as equal match to the transmit, During the period of its use the antenna was held up by roach poles either end and the centre around 20ft above the ground, which showed fantastic results..

      Cant say again how much I RECOMMEND this antenna http://www.ik-telecom.com/catalog/antennas/dipole/w3dzz5/eng/

      Many thanks to all the staff at IK Telecom for making a fantastic antenna and sponsoring us with it.
      Julian Rudd 2E0DJR

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