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<p class="MsoNormal"><span lang="EN-US">Andy Foad G0FTD has made a collection of RF calculations available in a spreadsheet.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Amongst the calculations are:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">RF Loss though concrete<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Barometric pressure conversions<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Maidenhead distance and beam heading calculator<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Audio filters (RC networks)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Unknown feeder impedance calculator<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Loop antenna impedance calculator<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">FM bandwidth (Carson's rule) now includes modulation index.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">L network matching component values<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Capacitive and inductive reactances<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Bandwidth tuned circuit<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Radio range and VHF/UHF/Microwave<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Freespace path loss<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Resonance series tuned circuit<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Resonance // tuned circuit<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Power received from tx to rx<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Groundwave range calculation <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Near field (REACTIVE) region of an antenna
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Calculation of skin effect on conductors (2 methods)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Series Resistance calculator for LED's, Lamps and crude nicad charging<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Impedance calculator including phase and power factor and relative SWR.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Quarter wave transformer calculator<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Electrical quarter wave calculator<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Impedance of custom air spaced coax<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Air spaced capacitor designer<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">All of Ohms law and power laws<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Conversion of AC and DC values RMS etc<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Conversion of milliwatts to dbm<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Conversion of dbuV to dbm<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Amidon cores inductance designer and related info included.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Power and voltage decibel ratio's.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Coax losses and approx capacity per 30cm<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Coax voltage breakdown and capacity per foot<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Single layer air cored inductance designer<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Capacitor markings guide<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">SPARK GAP DISTANCES<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Resonant speaker tubes to act as CW peak filters<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">db versus multiplication factor both power and voltage<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Galactic noise levels<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">uV to dbm convertor <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Milliwatts to dbm convertor<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">You can download the spreadsheets from <o:p>
</o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><a href="https://sites.google.com/site/g0ftdradio/home/rf-spreadsheets">https://sites.google.com/site/g0ftdradio/home/rf-spreadsheets</a>
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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