8m 4elements Antenna 8m4DX. The world’s first commercial 8m antenna
The world’s first commercial 8m 4elements Antenna 8m4DX for the new ham radio band. Designed for 40.66-40.7MHz or 40-41MHz Wideband. With extremely sturdy construction.
What does 8m4DX mean?
8m – Band antenna 40.66-40.7MHz or 40-41MHz Wideband
4 – Elements
DX – Intended for use from 40.66-40.7MHz with excellent SWR
Low Noise High Gain 8m 4elements Yagi Antenna 8m4DX will make sure you can hear weak signals and give you the extra edge you need to enjoy the Ham Radio Hobby.
Electrical Specifications of 8m 4elements Antenna 8m4DX:
Frequency Range: 40.5-40.9MHz and 40-41MHz for receiving
Free Space Forward Gain: 8.5dBi
Front-to-Back Ratio: 21dB
3 dB Horizontal Beamwidth: 60.9°
Nominal Input Impedance: 50 Ohms
SWR Across Entire Band: <1.2
Maximum Power Input: 1000W
Matching Method: Direct feed through common mode choke (current balun)
Mechanical Specifications of 8m 4elements Antenna 8m4DX:
Number of Elements: 4
Element Diameter: 12 mm, extensions 10 mm and 8 mm
Dipole Diameter: 12 mm, extensions 10 mm and 8 mm
Longest Element: 3.75m
Element Mounting Position: Below the Boom
Balun and Connector: Included
Boom Length: 2.92m
Boom Size: 30x30mm
Number of Boom Pieces: 2
Guy rope support: Not necessary. Strong boom
Mounting Mast Diameter: 43-70mm 1-11/16″ – 2-3/4″ OD, Stainless Steel
Clamp: M8 Stainless Steel
Survival Wind Speed: 150km/h
Net Weight: 4kg
Gross Weight: 5kg
Transportation Length: 1.5m
8m 4elements Antenna 8m4DX Azimuth Radiation Pattern
Look also at the other 8m antennas
Antennas-Amplifiers Product Benefits. A Major advance in Amateur Radio antenna design.
- F/B and G/T superiority.
All antennas have been calculated using state-of-the-art full 3D Electromagnetic Simulation Software including the influence of the boom, bracket, baluns, and connectors. The performance of antennas designed using these techniques is exceptional, far better than antennas designed using “wire” programs.
Comparison of EM simulation software
- No tuning antennas
Before dispatch, we assemble each antenna and test antenna characteristics. That means you may expect exceptionally good electrical and mechanical performance including low SWR across the designed range immediately after assembling.
No need to tune the dipole, or any other element to get perfect SWR on the intended frequency range. Everything is pre-tuned.
- Easy to set up
Everything is labeled, just put number to number. The antenna can be assembled with hand tools.
Everything is included in the antenna box: Antenna, balun with connector, and bracket. Yours is to assemble and have fun!
Check all 8m antennas