DF6SJ antenna (VGR antenna) for 2m

DF6SJ antenna: a slim 2m antenna with horizontal polarisation and high gain

DF6SJ antenna disassembled
DF6SJ antenna (VGR antenna)

This new antenna type looks like a vertical antenna but radiates with horizontal polarisation and high gain.
The antenna has a bidirectional radiation with an 8-shaped radiation diagramm, just like a horizontal dipole. The gain ranges from 10 to 12 dBi, depending on installation height over ground. The radiation angle of radiation very low, about 13° at installation 1m above ground, or 7° at 3m above ground.
The antenna has a height of 2m and requires almost no surface space, ideal for cramped conditions. In some cases this antenna might be the only option for horizontal polarisation.
The VGR Antenna does not require radials, the feed point is at the bottom, the connector is a N-jack. Maximum power load is 250 W PEP SSB or 100 W FM.
The antenna weighs 2.4 kg, is delivered complete with mast clamps and can be split up in half making it well suited for portable use, too. Transport length is only 1,15 m.
The loops are made of corrosion-resistant aluminium and all screws are made of stainless steel.

The antenna was designed by Prof. Dr.-Ing. Gerd Janzen, DF6SJ. Other versions for 6m and 70cm are in preparation.

Dates techniques DF6SJ Antenne
Gamme de fréquence 144-146 MHz
Gain
1-3m dessus sol
ca. 10-12 dBi
TOS 1,0 … 1,5
Largeur de bande pour SWV < 1,5 typ 1,3 MHz
pour SWV < 2,0 typ 2,3 MHz
Puissance maxi 100 Watt
Impedance 50 Ω
Hauteur ca. 2 m
Diamètre du mât maxi 65 mm
Poids 2,4 kg
Connecteur N fem.
Matérial AlMgSi 0.5, Vis Acier inoxydable
18150: Elevation and Azimuth diagrams
Réference
18150 DF6SJ VGR antenna 144 MHz 129.00 € Acheter
Info frais de port
Download: Manual DF6SJ antenna (PDF, DE, 355KB)