By Joseph Carr, Joe Carr
It hasn't ever been more straightforward to transmit and obtained radio indications than through the use of this ebook, that is geared toward newbies and complex clients alike. Elektor Electronics» Product Description: Joe Carr has supplied radio amateurs and short-wave listeners with the definitive layout consultant for sending and receiving radio indications with Antenna Toolkit second editio including the robust suite of CD software program, the reader can have a whole answer for developing or utilizing an antenna - bar the particular undefined! The software program presents an easy Windows-based reduction to accomplishing the layout calculations on the center of profitable antenna layout. the entire consumer must do is decide upon the antenna variety and set the frequency - a way more enjoyable and not more mistakes companies process than utilizing a standard calculator to resolve formulae. the hot version has been revised to incorporate additional circumstances of propagation, extra antennas and likewise new chapters - Small Loop Antennas (a subject of substantial curiosity, which has been the topic of a lot fresh debate within the beginner radio press) and Yagi Beam Antennas (widely used at HF and VHF). The CD software program has additionally been up to date. Joe Carrs services within the sector of antenna layout is famous. Antenna designers, no matter if hobbyist or technician, will be guaranteed they wish glance no extra than Antenna Toolkit for the full consultant to figuring out the practicalities of utilizing and designing antennas this day.
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Extra info for Antenna Toolkit, 2 edition
18 ANTENNA BASICS 41 antenna erection can be dangerous if you do not follow certain precautions. Do it right, and the risk is mitigated and the job can be quite safe. Safety ﬁrst! Before dealing with the radio and performance issues, let us ﬁrst deal with safety matters – you do not want to be hurt either during installation, or during the next wind storm. Two problems present themselves: reliable mechanical installation and electrical safety. Electrical safety note. Every year we read sad news in the magazines of a colleague being electrocuted while installing, or working on, an antenna.
Stranded wire, on the other hand, withstands the normal stresses and strains of antenna installations much better, and will stay up a lot longer. Stranded wire antennas may come tumbling down as well, but in general it takes a lot more time and effort for the stranded wire antenna to break, compared to the solid wire type. WIRE SIZES ____________________________________________________________________________________________________________________________________________________________________________________________________ Both stranded and solid wire comes in certain standard sizes.
They also have a wavelength (j), which corresponds to the distance traveled by the wave in one complete up-and-down cycle. In radio work, the wavelength is measured in meters (m), except in the microwave region where centimeters (cm) and millimeters (mm) make more sense. Wavelength can be measured at any pair of points on the wave that are identical: two peaks, two troughs, two zero crossings, as convenient in any speciﬁc case. The number of cycles that pass a given point every second is the frequency of the wave.
Antenna Toolkit, 2 edition by Joseph Carr, Joe Carr