Rca1948FrequencyModu.. - The New Jersey Antique Radio Club

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MULT1PATH DISTORTION 301and take logarithms of both sides,log (1 + xe
302 FREQUENCY MODULATION, Volume Icos (a; cos 8) — J (x)00+2 2 (— l) n ^2«(z) cos2«0n=looand sin (x cos 0) = 2 2 (— l) B/ 2B+1 (a;) cos (2re + 1) 0.n=0Multiply the second equation by i and add the first equation. Changethe cosine terms to the complex form.This givescos (x cos 0) + i sin (x cos $)= J (*) + 2 (-l)»/ 2n (a;)e !!i »»+ 2 (- 1) "/»(*)«-""'+ » 2 (-lW2„+i(»0 e.< 2»+«« + i 2 (-l) B / 2 n+i(a!)e-«» +1)W .Since (—l)» = i 2 » = r- a » and /„(a:) = (— 1)" •/_„(«), this proves thelemma.Lemma j3sin cos (a cos 6 + b)= 2cos& 2 (-l) m Jzm+iia) sin (2m + 1) 8m=0In complex form, using lemma a2m+ 2sin&ec2 (— !)"• ^(a) sin2mfl.m=lasin cos (a cos 8 + b)1= (q fc=— oo_ e -tW-»>2 VJ k(a)eW — e -U8+v 2 (— * ^* (°) «** \k=— ook=—ooJl r «.= J 2 WkW [e» —4tL fc =--Me«'«+
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FREQUENCY MODULATIONVolume IEdited
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1000-3000 watt FM transmitter—194
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:FREQUENCY MODULATIONVolume ICONTEN
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FREQUENCY MODULATION NOISECHARACTER
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NOISE CHARACTERISTICS 3w na - (u—
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NOISE CHARACTERISTICS 6to the ratio
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NOISE CHARACTERISTICS 7where C = ca
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•NOISE CHARACTERISTICS 9nF naF in
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NOISE CHARACTERISTICS 112G-)F1 aJ.
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ecurrent impulse. It isNOISE CHARAC
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NOISE CHARACTERISTICS 15constant sh
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NOISE CHARACTERISTICS 17/ 1 d(t)- (
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NOISE CHARACTERISTICS 19modulation
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.NOISE CHARACTERISTICS 21vary direc
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NOISE CHARACTERISTICS 23and frequen
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1NOISE CHARACTERISTICS 25curves for
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NOISE CHARACTERISTICS 27not conveni
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NOISE CHARACTERISTICS 29lation rece
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NOISE CHARACTERISTICS 31theoretical
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NOISE CHARACTERISTICS 33sponding or
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NOISE CHARACTERISTICS 35modulation
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NOISE CHARACTERISTICS 37signal was
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NC1SE CHARACTERISTICS .39Since the
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NOISE CHARACTERISTICS 41tude modula
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NOISE CHARACTERISTICS 43frequency m
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phase modulation maintained constan
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FREQUENCY MODULATION 47band pass of
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FREQUENCY MODULATION 49IV.Interfere
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FREQUENCY MODULATION 61frequency in
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FREQUENCY MODULATION 53maximum perm
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FREQUENCY MODULATION 55Frequency Mo
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BAND WIDTH AND READABILITY INFREQUE
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BAND WIDTH AND READABILITY 59The re
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BAND WIDTH AND READABILITY 61Listen
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BAND WIDTH AND READABILITY 63The cu
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VARIATION OF BANDWIDTH WITH MODULAT
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VARIATION OF BANDWIDTH 67
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VARIATION OF BANDWIDTH0.0606 4998 7
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iVARIATION OF BANDWIDTH 71Example:
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ItVARIATION OF BANDWIDTH 73where 6
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whereVARIATION OF BANDWIDTHmEn=—
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A PRETUNED TURNSTILE ANTENNA*tByGeo
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CHARACTERISTICS OF THE PYLON FM ANT
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IMPULSE NOISE IN F-M RECEPTIONSByVe
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THE RATIO DETECTOR*!ByStuart Wm. Se
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—PUSH-PULL FREQUENCY MODULATED CI
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APPENDIX IFREQUENCY MODULATIONA Bib
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FREQUENCY MODULATION BIBLIOGRAPHY"F
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FM BIBLIOGRAPHY 511"Input Impedance
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APPENDIX IIFM STATION PLACEMENT AND
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STATION PLACEMENT AND FIELD SURVEY
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