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How to build roofspace antennas and get them to work
In designing the antenna, the first reqirement is to ensure that the section carrying the most current is a high as possible
post 03 Nov 2024
Antennas theory Links →
Los dipolos
The dipoles are generally half wavelength antennas, these are calculated using the following formula: Total dipole length = 142.5 / F (MHz)
Magnetic Loop Antenna Theory
The loops shown are all coupled with a ferrite transformer which is used to match the 50 ohms coaxial
Micro Controller Projects
On this web site you will find a series of projects of interest to Radio Amateurs and other hobbyists
Open line
It is often thought that running an open line through a wall is difficult
Rhombic antennas
The highest development of the long-wire antenna is the RHOMBIC ANTENNA It consists of four conductors joined to form a rhombus, or diamond shape
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The dipoles are generally half wavelength antennas, these are calculated using the following formula: Total dipole length = 142.5 / F (MHz)
The loops shown are all coupled with a ferrite transformer which is used to match the 50 ohms coaxial
On this web site you will find a series of projects of interest to Radio Amateurs and other hobbyists
It is often thought that running an open line through a wall is difficult
The highest development of the long-wire antenna is the RHOMBIC ANTENNA It consists of four conductors joined to form a rhombus, or diamond shape
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