Dipole for the 20m band 300W SSB PEP

101

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The antenna dipole for the 20m band with frequency range from 14000kHz to 14350kHz with overall length of 10.14 meters (~ 34ft) (arms length: 2x 5.07m/ 2x ~17ft.), gain of 0dBd and a power rating of 300W SSB PEP.

More details

48,00 €

48,00 € per ks

Data sheet

Frequency range14000 Khz – 14350 Khz
Working band of the antennaApprox.300 kHz for SWR less than 2 (depends on the placement of the antenna in space)
Arms length2x 5.07m/ 2x ~17ft.
Overall length10.14 m (~ 34 ft.)
Gain0 dBd
Balun1:1
Maximum power load300W PEP SSB
Antenna feed50 ohm coaxial cable
Mounting heightnot less than 6 meters (~20 feet) (the higher, the better)
Weight0,78 Kg

More info

The materials used to build this antenna have been selected with an emphasis on the best electrical and mechanical properties and resistance against outside weather conditions.
For the dipole arms a hardened and prestressed copper line with a cross-section of 2,5sqmm and a harder PVC isolation is used.


On the box side of the dipole arm the wire is tipped with an eye for a M4 screw, made by ZES Dolny Kubin, Slovakia.


It is isolated by a shrink tube on both sides. The mechanical connection with the balun is made with a simple wire loop secured with a duplex wire clamp and, on the hanging rope side, a ceramic isolator (type 16C01 made by MFJ is used), secured also with a duplex wire clamp.


The antenna balun with a ratio of 1:1 and a maximum power rating of 300W PEP SSB is made from a waterproof box of IP56 made by SCAME, model 686.205.
On both sides of the box are screws with closed hook ends (size M5), made from anticorrosion steel for extra durability.


A more solidly made SO239 connector is used, with DAP diaelectricum, bolted to the box via anticorrosion steel screws and nuts.


The balun transformer is wound on four ferite toroid cores with the respective measurements of (outer x inner x height) 17,5 x 10,7 x28,5 mm.


The arms of the dipole are electrically connected to the transformer through a pair of M4 screws and nuts on both sides of the box.

WARNING!
The connector on the antenna serves only to electrically connect with the coaxial cable. For bearing the coaxial cable, use the attached rope (with inner core made by LANEX).

After the antenna is tuned, it is necessary to insulate the ends of the arms with shrink tubing to prevent water intrusion.

The warranty does not cover damage caused by overloading the balun with more power than specified on the balun`s label.