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Ham Radio 2000
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cabloss.bas
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BASIC Source File
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1994-06-23
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583b
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20 lines
5 COLOR 0,10,14:PRINT
6 PRINT
10 PRINT " ***LOSS IN A COAX CABLE***
20 COLOR 15,0,14:PRINT
21 PRINT
25 PRINT "WHAT IS THE FORWARD POWER (PF) TO A CABLE SHORTED AT THE FAR END?
30 INPUT "ENTER THE FORWARD POWER (PF)"; PF
35 PRINT "WHAT IS THE REFLECTED POWER (PR)?
40 INPUT "ENTER REFLECTED POWER (PR)"; PR
45 K=(PF/PR)^.5
50 S=(K+1)/(K-1)
55 U=(S-1)/(S+1)
60 A=4.343*LOG(U)
65 PRINT
70 COLOR 0,15,14:PRINT
71 PRINT
75 PRINT " ***ANSWER*** "
76 PRINT
85 PRINT A," CABLE ATTENUATION IN dB.