_  __   _  _         _ _     _      _           _           
  __| |/ /_ | || |     __| (_)___| | __ (_)_ __   __| | _____  __
 / _` | '_ \| || |_   / _` | / __| |/ / | | '_ \ / _` |/ _ \ \/ /
| (_| | (_) |__   _| | (_| | \__ \   <  | | | | | (_| |  __/>  < 
 \__,_|\___/   |_|    \__,_|_|___/_|\_\ |_|_| |_|\__,_|\___/_/\_\
                                                                 
            

ANTENNA SCALE

FILE INFORMATION

FILENAME(S): ANTENNA SCALE

FILE TYPE(S): PRG

FILE SIZE: 6.4K

FIRST SEEN: 2025-11-30 19:36:45

APPEARS ON: 1 disk(s)

FILE HASH

9205aa1c4515ae6dd702e5b9e75bea97311681ae4a486c93eaf38ba536d8aa94

FOUND ON DISKS (1 DISKS)

DISK TITLE FILENAME FILE TYPE COLLECTION TRACK SECTOR ACTIONS
JBR C64 RADIO MM ANTENNA SCALE PRG Curtcool, Bo 17 13 DOWNLOAD FILE

FILE CONTENT & ANALYSIS

> DETECTED: COMMODORE BASIC PROGRAM (LOAD ADDRESS $0801)

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000019B0: 00                                                |.               |
../.... PARASITIC ANTENNA SCALING PROGRA
M (C64).J.... FOR ANY QUAD, YAGI OR QUAG
I OF TWO OR MORE ELEMENTS....... BY KC6A
 AND N6NB; (C) 1983 BY HAYDEN BOOK CO.,I
NC.......15,8,15.H. ..13,4:. VIC PRINTER
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$.@.F.INV$.G(18):. VIDEO-INVERSE COMMAND
.G.P.NML$.G(146):. VIDEO-NORMAL COMMAND.
..V.. " ";INV$;"                        
              ".W.X.. " ";INV$;"       A
NTENNA SCALING PROGRAM        "...... " 
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IONS--".C.... "    ENTER DIMENSIONS AND 
SCALE THEM"... .. "       TO A NEW FREQU
ENCY NOW (SCALE)"...... "    CREATE A DA
TA FILE WITH STANDARD"...... "       DIM
ENSIONS TO USE LATER (CREATE)"...... "  
  READ DATA FROM A FILE AND SCALE IT".F.
H.. "       TO A NEW FREQUENCY (READ)".W
....:. " ENTER 'SCALE','CREATE' OR 'READ
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   FOR THE ORIGINAL ANTENNA        "...,
..:.:. "HOW MANY DIRECTORS (IF NONE,'0')
":. N...6.. N.25 . . "TOO MANY. 25 MAXIM
UM":. 300.I.@.. N.1 . 380.W.J.. J.1 . N.
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.^.. "   OF DIRECTOR #";J;.%.H.. E(J).-.
R.. J.\.|..:. "HOW LONG IS THE DRIVEN EL
EMENT":. D:....... "HOW LONG IS THE REFL
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..:.:. "REFLECTOR TO DRIVEN ELEMENT";B1.
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TO DIRECTOR #1";B2.:.B.. N.2 . 500.L.L..
 J.1 . (N.1).W.V..:. "DIRECTOR #";J;"TO 
DIRECTOR #";J.1...... A(J)...... J.A....
:. "WHAT IS THE ORIGINAL FREQUENCY (IN M
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IAMETER (INCHES)"...... "(USE TYPICAL DI
AMETER IF IT VARIES)".&.... R1.?.... O$.
"CREATE" . 1600.T.&.. INFORMATION NEEDED
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:.  "        NOW DESCRIBE THE NEW ANTENN
A        "...D..:. "ENTER THE NEW FREQUE
NCY (IN MHZ)";F2...N.SF.F1.F2:. SCALING 
FACTOR.-.X..:. "DO YOU WANT THE DIMENSIO
NS CORRECTED".].B.. "FOR LENGTH-TO-DIAME
TER RATIO (Y/N)":. A$.Q.L.. A$.."Y" . 65
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ETER"...... "(IN INCHES)";R2.O.... SF.1.
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N......:.......:..*.... "***************
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          WARNING                 "...F.
. "*************************************
***"...P..:.:. NML$:. VIDEO NORMAL.W.Z..
 "SCALING ANTENNAS MATHEMATICALLY IS A".
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OUS".3.... "VARIABLES THAT AFFECT THE OU
TCOME.  IF".B.... "THE CHANGE IN FREQUEN
CY IS SMALL, THEY"...... "MAY BE IGNORED
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ERIMENTATION WILL BE NECESSARY, EVEN"...
 .. "IF LENGTH-TO-DIAMETER RATIO IS TAKE
N".?.*.. "INTO ACCOUNT IN THE SCALING.".
I.4..:.:....>..:. "DO YOU WANT A HARD CO
PY PRINTOUT? (Y/N)":. LP$...H.X.R2.R1...
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B(X)..(S.X.100..5).100...... .C(X)..(CM.
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5).100.N.... 1020:. VIDEO DATA DISPLAY..
.J.. LP$.."Y" . 1780...... 1340:. PRINTI
NG SUBROUTINE...... 1780.$.... VIDEO DIS
PLAY.U.... "ANTENNA SCALING FROM ";F1;" 
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.9)"ANTENNA TYPE ";FILE$:......F1$."ELE 
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 FIELD.".F.(....2.. HARD COPY PRINTOUT.
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;.C(D)...X.. N.1 . 1440...... J.1 . N.9.
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$."Y" . .13,"     LENGTH-TO-DIAMETER RAT
IO CORRECTED"......13,:.13,"     NOTE: M
ATHEMATICALLY DERIVED DIMENSIONS"..."..1
3,"     MAY REQUIRE FINE TUNING IN THE F
IELD."...,.. J.1 . 1999:.;:. J:..=.6.. C
REATING A NEW DATA FILE FOR A SPECIFIC A
NTENNA DESIGN.Q.@..:.:. "GIVE YOUR DATA 
FILE A NAME--8 CHARS MAX". .J.. "PREFERA
BLY ONE DESCRIBING THE ANTENNA.".S.T.. "
THE FIRST CHARACTER MUST NOT BE A NUMERA
L."...^.. "--NAME";FILE$...H.. C(FILE$).
8 . . "TOO LONG":. 1600.#.L..15,"S0:".FI
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2 . 1750...L.. J.1 . N.1:.3,A(J):. J.L.V
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EATED"..... 13: 15:.." ... READING AN EX
ISTING DATA FR.........1......R........Q
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