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Explore the World of Soft…e: Engineering & Science
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Explore_the_World_of_Software_Engineering_and_Science_HRS_Software_1998.iso
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electrnc
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mcgarret.exe
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ANTCAP.BAS
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BASIC Source File
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1986-08-11
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710b
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24 lines
100 REM CAPACITANCE OF A SHORT VERTICAL ANTENNA
110 REM FORMULA FROM ALLIED'S ELECTRONICS DATA HANDBOOK
120 REM PROGRAM BY D. MCGARRETT 13 JULY 1984
130 PRINT
140 PRINT"ANTENNA CAPACITANCE FINDER PROGRAM"
150 PRINT"USE ^C TO EXIT PROGRAM"
160 PRINT
170 INPUT">>> OPERATING FREQUENCY IN MHZ";F
180 INPUT">>> DIAMETER OF ANTENNA CONDUCTOR IN INCHES";D
190 INPUT">>> LENGTH OF ANTENNA IN INCHES";L
200 L=L/12
210 CA=17*L/((LOG(24*L/D)-1)*(1-(F*L/246)^2))
220 DEF FNR(R)=INT(1000*R+.5)/1000
230 PRINT
240 CA=FNR(CA)
250 PRINT "ANTENNA CAPACITANCE IS"CA"PF"
260 PRINT
270 LM=25330/(F^2*CA)
280 LM=FNR(LM)
290 PRINT "BASE LOADING COIL TO MATCH IS"LM"UH"
300 PRINT
310 PRINT
320 GOTO 190