Xiegu VG4 antenna is a 4-band GP type and is made of aluminum alloy with anti-oxidation surface. It is light, solid, and easy to install. It is with good outdoor weather ability. After the normal installation without needing extra guying, it can resist Category One Hurricane. Features: 4-Band Vertical Antenna: The VG4 is a 4-band Ground Plane type antenna made of aluminum alloy with an anti-oxidation coating. It covers 40/20/15/10 meters. The user trims the antenna to the part of the band as needed. Automatic band switching: The antenna has a single coax cable feed however each band is individually tuned with a low VSWR across the band. Through fine-tuning, the best (rock-bottom) SWR can be achieved on the user’s choice of frequency within the band. The band selection is 100% automatic through the single feed, just switch bands on the radio. No extra ground peg or radials are needed: The antenna has its own effective counterpoise replacing the need for radial wires. Physical: This antenna is light, but built to last and is easy to install. Suitable even for homes with only a small space available. It is perfect for roof, patio, small backyard, condo and motorhome installation. Top loading: Parallel resonators are used to give the best vertical-element efficiency. End loading of the lower HF band sections (capacitive hats) allow efficient operation with a reduced antenna height. Outdoor weather ability: The VG4 is rated for high wind environments. After a normal installation, it can resist a category one hurricane with no guying required. Specifications: Use frequency band: 7/14/21/28MHz (40m/20m/15m/10m) Axial length: about 7.8m | 25.6ft Radial length: about 2.7m | 8.8ft Maximum power handling: 1000W PEP (CW500W, RTTY300W) Antenna impedance: 50Ω 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 | 15.4lb Package size: 13x13x120cm | 0.4x0.4x3.9ft Erection height: the distance from the ground is more than 3m (10ft) Note: 1. 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 3 meters (10ft). 2. The antenna installation environment shall be as open as possible and away from some important equipment & facilities, power transmission & transformation equipment, medical equipment and other sensitive electronic instruments or equipment, and public radio & television tower or other high-power radio transmission antenna system. 3. When mounting on a tall mast or roof please take appropriate measures for lightning protection and grounding. 4. After the antenna test is completed, it is recommended to apply waterproof and UV resistant silicone rubber at the antenna feeder joint, to wrap the whole connection part. 5. As long as the surrounding environment is safe, it is not required to use any guy ropes. 6. In extreme weather conditions, it is recommended to take down the antenna in advance of the storm arriving if possible. 7. The coax connector thread on the matching box is a 5/8 inch , 24 threads per inch UNEF standard. 8. The centre conductor jack on the SO-239 will also accept a banana plug. PS: 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. What's in the box? 1 x Main support (450*46*4mm | 1.5*0.15*0.01ft) 1 x Base Support section (450*46*41mm /1.5*0.15*0.01 ft) 6 x Counterpoise rods (1200mm / 3.9ft) 1 x Antenna body NO:1 (1200*33*3mm / 3.9*0.1*0.01ft) 1 x Antenna body NO:2 (1200*29.5*26mm / 3.9*0.1*0.08ft) 1 x Antenna body NO:3 (1200*26*23mm / 3.9*0.08*0.1ft) 1 x Antenna body NO:4 (10m Notch filter) 1 x Antenna body NO:5 (250*26*23mm / 0.82*0.08*0.07ft) 1 x Antenna body NO:6 (15m Notch filter) 1 x Antenna body NO:7 (250*26*23mm / 0.82*0.08*0.07ft) 1 x Antenna body NO:8 (20m Notch filter) 1 x Antenna body NO:9 (1200*12.8*10.5mm / 3.9*0.04*0.03ft) 1 x Antenna body NO:10 (1200*10*8m / 3.9* 0.03*0.03ft) 2 x 20m capacitor cap (500mm / 1.6ft) 4 x 40m capacitor cap (1200mm / 3.9ft) 1 x Matching box 2 x Main support plate 1 x 7# Allen key 1 x 10# wrench 1 x 13# wrench 1 x M4 Allen wrench 2024 August QST Review
