Transcription of Introduction to RF Engineering
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Introduction to RF Engineering
1 Andrew CLEGG Introduction to RF Engineering Comparing the Lingo 3 Radio Astronomers Speak a Unique Vernacular We are receiving interference from your transmitter at a level of 10 janskys What the ^#$& is a jansky ? 4 Spectrum Managers Need to Understand a Unique Vernacular Huh? We are using +43 dBm into a 15 dBd slant-pol panel with 2 degree electrical downtilt 5 Why Bother Learning other RF Languages? Radio Astronomy is the Leco of RF languages, spoken by comparatively very few people Successful coordination is much more likely to occur and much more easily accommodated when the parties involved understand each other s lingo It s less likely that our spectrum management brethren will bother learning radio astronomy lingo we need to learn theirs 6 Received Signal Strength 7 Received Signal Strength: Radio Astronomy The jansky (Jy): > 1 Jy 10-26 W/m2/Hz > The jansky is a measure of spectral power flux density the amount of RF energy per unit time per unit area per unit bandwidth The jansky is not used outside of radio astro
Introduction to RF Engineering . Comparing the Lingo . 3 Radio Astronomers Speak a Unique Vernacular ... • If gain in dB is specified, how do you know if it ...
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