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 center frequency of the antenna can be adjusted when assembling the antenna. Without adjustment the center frequency is located in the lower half of the 2m band, read for SSB/CW operation. Nevertheless the antenna has sufficient bandwidth to be useable over the entire band range.
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.

Technical Data DF6SJ Antenna
Frequency Range 144-146 MHz
Gain
1-3m above ground
ca. 10-12 dBi
SWR 1,0 … 1,5
Bandwidth at SWV < 1,5 typ 1,3 MHz
at SWV < 2,0 typ 2,3 MHz
Max. Power 100 Watt
Impedance 50 Ω
Height ca. 2 m
Max. Mast Diameter 65 mm
Weight 2,4 kg
Connector N socket
Material AlMgSi 0.5, Screw Stainless steel
18150: Elevation and Azimuth diagrams
Order No.
18150 DF6SJ VGR antenna 144 MHz 129.00 € Buy now Not in stock, back on: 04. Apr. 2017
Info freight charges
Download: Manual DF6SJ antenna (PDF, DE, 355KB)