XIEGU VG4 User manual

Antenna
Version 1.0 Jan 2022
VG4
Installa�on Manual
XI E GU

I. Antenna Parameters
Use frequency band: 7/14/21/28MHz (40m/20m/15m/10m)
Axial length: about 7.8m; Radial length: About 2.7m
Maximum power handling: 1000W PEP (CW500W,RTTY300W)

VSWR: ＜1.5:1
Antenna bandwidth: 40m: 150kHz / 20m: 450kHz / 15m: 800kHz / 10m: 1000kHz
Rated wind speed: 35 m/s
Antenna interface type: SL16-K
Weight: about 7.0kg

II. List of Components
Component
Main support
Main counterpoise
NO:1
NO:2
NO:3
NO:4
NO:5
NO:6
NO:7
NO:8
NO:9
Specifica�on (mm)
450*46*41
1200
1200*33*30
1200*29.5*26
1200*26*23

245*26*23

325*26*23

1200*12.8*10.5
Quan�ty
1
6
1
1
1
1
1
1
1
1
1

surface. It is light and solid, and is easy to install and erect, with good outdoor weather

no wind cable for fastening).
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III. Installa�on Instruc�ons
3.1 Notes





equipment,
transmission antenna system.

grounding.


part.

to reinforce the antenna.


VISIT RADIODDITY.COM FOR DOWNLOADS AND HELP 02
Component
NO:10
20m capacitor cap
40m capacitor cap
Matching box
Main support set plate
U clamp

10# wrench
13# wrench
M4 Allen wrench
Specifica�on (mm)
1200*10*8
500
1200
Quan�ty
1
2
4
1
1
4
1
1
1
1

VISIT RADIODDITY.COM FOR DOWNLOADS AND HELP 03
3.2 Installa�on Step


Insert the NO.1 main rod into the main support, and put the two ends of the place


 

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④
front side, and insert the second and fourth U clamps on the back side.


support.
Twist in a 20m capacitor cap on the NO.8 main rod.
Twist in a 40m capacitor cap on the NO.9 main rod.
 

Main support
Matching box
NO:1
NO:2
NO:3
NO:4
NO:5
NO:6
NO:8
NO:9
20m capacitor cap
40m capacitor cap
NO:10
NO:7
Main counterpoise
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3.3 Commissioning Step
Adjust main rod NO:1-NO:3, or may adjust the
center frequency point of 10m band.
Adjust main rod NO:5, or may adjust the center
frequency point of 15m.
Adjust main rod NO:7, or may adjust the center
frequency point of 20m.
Adjust main rod NO:8 - NO:9 length, or may
adjust the center frequency point of 40m.
The rough center frequency point of each band is
as follows:
40m: 7.05MHZ
15m: 21.3MHZ
20m: 14.2MHZ
10m: 28.5MHZ



VG4 antenna can be adjusted to frequency band center frequency point that we need. During
the adjustment, the adjustment of the high frequency band shall affect the low frequency
band, while the adjustment of the low frequency band shall not affect the high frequency band.
Therefore, the adjustment sequence is: to adjust from 10m of high frequency band to 40m of
low frequency band. Generally, only 40m frequency band needs appropriate adjustment.
⑧Twist in the main counterpoises.
*Please make sure that each main rod is connected and fastened well; otherwise the


XI E GU