Xiegu VG4 4 Band Base Station Vertical Antenna User Manual
- July 16, 2024
- XIEGU
Table of Contents
Xiegu VG4 4 Band Base Station Vertical Antenna
Product Specifications
- Antenna Type: Ground Plane
- Material: Aluminum alloy with anti-oxidizing coating
- Installation: Easy to install and erect
- Weather Stability: Good outdoor weather stability
- Resistance: Can resist up to Category One Hurricane without guying
Installation Instructions
Notes
- The antenna can be installed on a stable ground-supported mast or using a wall mount with expansion bolts.
- Installation clearance above the ground should be greater than 10ft / 3 meters.
- Avoid installation close to power equipment, medical devices, or high-power radio transmission systems.
- Take lightning protection and grounding measures when mounting on tall structures.
- Apply waterproof and UV-resistant silicone rubber at the antenna feed point after configuration.
- No guy ropes are needed if the environment is safe, but consider taking down the antenna in extreme weather.
Installation Steps
- Insert the sections in sequence following the NO numbers, tightening the clips but not fully to allow adjustments.
- Mount the main rod by keeping the mounting brackets at both ends of the matching box in one direction.
USER MANUAL:
The VG4 antenna is a 4-band Ground Plane type antenna made of aluminum alloy
with an anti-oxidizing coating. It is light and solid, easy to install and
erect and has good outdoor weather stability. In a normal installation it can
resist up to Category One Hurricane without needing to be guyed.
Antenna Parameters
- Frequency bands: 7/14/21/28MHz (40m/20m/15m/10m)
- Antenna height: about 25.6ft / 7.8m;
- Width : About 8.8ft / 2.7m
- Maximum power handling: 1000W PEP (CW 500W, RTTY/Digital modes 300W)
- Antenna impedance: 50 Ω
- VSWR : < 1.5:1
- Antenna bandwidth : 40m: 150kHz / 20m: 450kHz / 15m: 800kHz / 10m: 1000kHz
- Rated wind speed: 78mph / 35 m/s
- Antenna interface type : SL16-K (SO-239).
- Weight : about 15.4lbs / 7.0kg
- Installation height: the distance from the ground to the base of the antenna should be more than 10ft / 3 meters
List of included parts
*(NO = antenna section number, numbered
from bottom to top)
Accessories Lists
ASAA
The bolts’ diameter here means internal diameter.
Installation Instructions
Notes
- The antenna can be installed either on a stable ground supported mast or using a wall mount secured using expansion bolts. The installation clearance above the ground should be greater than 10ft / 3 meters.
- The antenna installation environment shall be as clear as possible and away from all major equipment & facilities such as power transmission & transformation equipment, medical equipment and sensitive electronic instruments or equipment. Installation close to public radio & television towers or other high-power radio transmission antenna systems is not advisable.
- When mounting on a tall mast or roof please take appropriate measures for lightning protection and grounding.
- After the antenna configuration is completed, it is recommended that you apply waterproof and UV- resistant silicone rubber at the antenna feed point, covering the whole connection.
- As long as the surrounding environment is safe, it is not required to use any guy ropes.
- In extreme weather conditions, it is recommended to take down the antenna in advance of the storm arriving if possible.
Installation Steps
- Insert the NO.2 tube into the NO.1 tube, tighten the Jubilee clip with the supplied wrench. Then, install the other sections from bottom to top in the sequence of the “NO” numbers and tighten the clips, but not fully as you may need to adjust the sections in the configuration process.
- Insert the bottom (NO.1) tube into the base support tube section and ensure the pole mounting for the matching box are on the same side of both tubes, then fix the assembled antenna tubes to the base support tube using the screws (Installation method: put the parallel spacer first, then put the spring spacer, and finally twist the nut.) supplied.
- Place the matching box on the base support tube and fix it with the supplied screws.
- Insert the U clamps into the fixing plate. Insert two U clamps on the front side and the remaining two U clamps on the rear side.
- Insert the base support into the U clamps on the front of the plate, and tighten the nuts. The other two U clamps will be tightened once the antenna is on its supporting mount
- Screw in the two 20m capacity hat rods on section NO:8.
- Screw in the four 40m capacity hat rods on section NO:9.
- Screw in the six main counterpoise rods at the bottom of section NO:1.
*Please make sure that each main rod is connected and fastened down tightly; otherwise the overall strength of the antenna will be affected.
Commissioning Steps
- Adjust the position of main sections NO:1-NO:3, by loosening the clips and sliding the sections in or out of each other to adjust the center frequency point in the 10m band.
- Adjust the position of NO:5 section to adjust the center frequency point of the antenna on 15m.
- Adjust the position of NO:7 section to adjust the center frequency point of the antenna on 20m.
- Adjust the position of NO:8 – NO:9 sections to set the center frequency point of the antenna on 40m.
- Without adjustment the rough center frequency point of each band is as follows:40m7.05MHZ
- 15m21.3MHZ
- 20m14.2MHZ
- 10m28.5MHZ
- Due to the influence of the installation environment these values can change so please adjust it appropriately for your needs as described in the earlier steps. The VG4 antenna can be adjusted to any band center frequency that you wish. During the configuration step, adjustment of the higher frequency bands will affect all of the lower frequency band settings. The adjustment of lower frequency bands will not however affect the higher frequency band settings. Therefore, the adjustment sequence is, as shown above, to adjust from the 10m band to the 40m band. Generally speaking, only the 40m frequency band will need adjustment
Copyright Statement
All Rights Reserved, 2022
Chongqing Xiegu Technology Co., Ltd. reserves all rights of the manual. All
parts of the manual shall not be copied without permission.
FAQ
Q: Can the antenna be installed on a rooftop?
A: Yes, the antenna can be installed on a rooftop with appropriate measures
for lightning protection and grounding.
Q: What is the recommended clearance for installation above the ground?
A: The recommended clearance above the ground is greater than 10ft / 3 meters.
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