It is a serially manufactured antennas, it has high quality and reliability. Each antenna produced for each specific order and personal needed.
Customer frequency range, so when you place the order, let me know your desired central (transmitting). Also usually we need about 15 days to produce the antenna.
Due to russia's invasion of Ukraine, we do not powder coat the antennas yet, so they will have a natural aluminum color and will not be painted. Thanks for your support and understanding! Install the supplied hardware exactly as shown in the photo.Colored markers on each dipole indicate upward direction. Accordingly, the drainage holes at the end of the antennas should point downward. All vibrators must be installed strictly on the same line and in the same plane below each other at an appropriate distance.
To calculate the vertical distance in meters, between the centers of the dipoles, it is necessary to multiply the wavelength of the transmission frequency by 5/8 or 0.625. The wavelength can be calculated by dividing 300 by the frequency in MHz. The mast on which the antenna is installed must be no lower than the upper edge of the upper dipole. The antenna mast must be grounded. If you have any questions about the assembly and installation of the antenna, please contact me. This item is in the category "Consumer Electronics\Radio Communication\Antennas\Ham, Amateur Radio Antennas". The seller is "odessadmitry" and is located in this country: UA. This item can be shipped worldwide.