Top 10k strings from Radio 5 - Antennas & Feeders (1983)(IPC Magazines).z80 in <root> / bin / z80 / software / Sinclair Spectrum Collection TOSEC.exe / Sinclair ZX Spectrum - Utilities & Educational / Sinclair ZX Spectrum - Utilities & Educational - [Z80] (TOSEC-v2007-01-01) /

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   4 ;"More ? yes/no"
   2 To calclate feed line
   2 IMPOSSIBLE
   2  impedance
   1 To calculate antenna length
   1 Resonant frequency = ";F;" MHz
   1 Frequency to wavelength
   1 Convert wavelength
   1 Circular coaxial cable
   1 CALCULATIONS
   1 ANTS+FEEDS
   1 ANTENNAS and FEEDERS G3NGC
   1 ANTENNAS and FEEDERS
   1 AMATEUR RADIO
   1 ;X;"mm    "
   1 ;P;" cm. = ";
   1 ;N;" metres = ";F;" MHz"
   1 ;F;" MHz = ";G;" centimetres"
   1 ;F;" MHz = ";
   1 ;D;"mm   "
   1 ;"which equals ";G;" Gigahertz"
   1 ;"or ";C;" metres in length"
   1 ;"dia.mm  "
   1 ;"Wire length is ";L;" feet"   
   1 ;"The dielectric constant ""K""= ";K;"
   1 ;"Parallel line(twin feeder)"
   1 ;"More ? yes/no "
   1 ;"J.T.BEAUMONT - G3NGD"
   1 ;"Input resonant frequency in MHz "
   1 ;"Input outer"
   1 ;"Input metres
   1 ;"Input inner"
   1 ;"Input frequency in MHz"
   1 ;"Input dia.""X"" in mm"
   1 ;"Input centimetres  "
   1 ;"Inner =    "
   1 ;"Impedance of twin = ";Z;" ohms"
   1 ;"Impedance of coax.= ";Z;" ohms"
   1 ;"How many halfwaves ?"
   1 ;"Frequency = ";F;" MHz
   1 ;"For air dielectric input 1":
   1 ;"Enter (m) for metres
   1 ;"Antenna is ";H;" halfwaves long
   1 ;"Antenna is ";H;" halfwave long    "
   1 ;"<---Input mm--->"
   1 ;"----";D;" mm---"
   1 ;"  Outer =
   1 ;"   poly dielectric input 2.3"
   1 1983 IPC Magazines Ltd"
   1 );" metres"
   1 "Select your program":
   1 "Input letter to calculate: "
   1 "E:- Antenna length":
   1 "D:- Wavelength to frequency"
   1 "C:- Frequency to wavelength"
   1 "B:- Impedance of twin feeder"
   1 "ANTS+FEEDS"
   1 "A:- Impedance of coaxial cable"
   1  to frequency
   1  or (c) for centimetres"