The design consists of a re-hashed commercial whip antenna that was design for an unknown frequency, possibly low band VHF.
It is important to remember that mobile antenna mount of this type vary considerably in the design and any attempt to duplicate the this process should use this description as a guide only.
Finally with only the most modest trimming of the radiating element the required parameters were realised with a resonant frequency of 146.5MHz and a SWR.32 at 146.66 MHz.
Inductive being a positive value and capacitive being a negative number.
The book exists in online form through the web page tgers.Individual chapters are available below 4x4 rubik's cube solution pdf in PDF in 2-up format.B - Weather proof cone.Seamcat supports custom written plugins.
Rs Resistive component of the total impedance Xs Reactive component of the total impedance also indicating the /-sign of the value.
We felt that it would be useful and fun to be able to quickly carry out the computations illustrating various waves and antenna applications, and have included enough matlab keygen revo uninstaller pro 2.5.9 code in each example (but skipping all figure annotations) that would enable the reader to reproduce.
The goal here is to find the operating frequency of 146.5MHz compromise between being close to the resonant frequency and achieving best possible impedance match resulting in an SWR of about.5 - 1 or less.
You need to develop your own plugin using a Java development environment (IDE) for instance idea Intellij.
It is important that the heat shrink tubing that will be used to weather proof the loading coil assembly is slipped over the coil to reveal the effect that it will have when it is finally shrunk into place as the effect of the heat.The zipped file ewa.Once shrunk the ideal frequency is lowers slightly further.Quarter-Wavelength Transformers bkwrec - order-decreasing backward layer recursion - from a,b to r frwrec - order-increasing forward layer recursion - from r to A,B chebtr - Chebyshev design of broadband reflectionless quarter-wave transformer chebtr2 - Chebyshev design of broadband reflectionless quarter-wave transformer chebtr3 - Chebyshev.The toolbox was developed under matlab.3, but runs also under.0 and v2013b.I am grateful.The retaining nut is then installed with care not to over tighten.A solution was to redesign a standards mobile antenna mount with a Female 'N' type coax cable connector that would be robust and more importantly weather proof.Alessandro Toscano, Department of Applied Electronics, University "Roma Tre Rome, Italy, for producing very detailed solutions of the problems of Chapters 1 2, and for allowing me to post them online.Return Loss Total reflected system loss.