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0 1 21 15 0 3 
.CMD FORMAT  rd=d ct=10 im=i et=3 zt=15 pr=3 mass length time charge temperature tr=0 vm=0
.CMD SET ORIGIN 0
.CMD SET TOL 0.001000000000000
.CMD SET PRNCOLWIDTH 8
.CMD SET PRNPRECISION 4
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.CMD DEFINE_FONTSTYLE_NAME fontID=10 name=User^7
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.CMD UNITS U=1
.CMD DIMENSIONS_ANALYSIS 0 0
.TXT 2 0 3 0
Cg a44.500000,44.250000,94
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{\fonttbl
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{\f1\fnil Symbol;}
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{\plain { Theoretical basis with example
 of open-circuit  dipole field          
       measurement:}}
}
.EQN 5 1 6 0
{0:Mhz}NAME:88
.TXT 0 9 5 0
Cg a12.750000,15.875000,21
{\rtf1\ansi \deff0
{\fonttbl
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{\plain {(Frequency in mHz)}}
}
.EQN 0 20 10 0
{0:\l}NAME:(299.8)/({0:Mhz}NAME)
.EQN 0 10 8 0
{0:\l}NAME={0}?_n_u_l_l_
.TXT 0 8 9 0
Cg a8.250000,22.000000,24
{\rtf1\ansi \deff0
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{\plain {(}{\f1 l}{ in meters)}}
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.EQN 0 11 43 0
{0:Einc}NAME:44
.EQN 5 -58 18 0
{0:Dia}NAME:(1)/(200)
.TXT 0 10 19 0
Cg a22.125000,63.000000,37
{\rtf1\ansi \deff0
{\fonttbl
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{\f1\fnil Symbol;}
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{\plain {(Physical dipole diameter = .5 
cm)}}
}
.TXT 5 -9 22 0
Cg a34.375000,71.000000,58
{\rtf1\ansi \deff0
{\fonttbl
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{\f1\fnil Symbol;}
{\f2\fnil Arial;}
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{\plain {Calculate proper length of dipole
 for frequency in use:}}
}
.TXT 3 0 23 0
Cg a16.125000,72.000000,28
{\rtf1\ansi \deff0
{\fonttbl
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{\f1\fnil Symbol;}
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{\plain {(Schelkunoff's algorithm)}}
}
.EQN 4 0 16 0
{0:ReqLen}NAME:(1-(.2257)/({0:ln}NAME(({0:\l}NAME)/({0:Dia}NAME))-1))*({0:\l}NAME)/(2)
.TXT 0 27 21 0
Cg a17.000000,46.000000,28
{\rtf1\ansi \deff0
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{\f1\fnil Symbol;}
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{\plain {Dipole Length in Meters =}}
}
.EQN 0 25 20 0
{0:ReqLen}NAME={0}?_n_u_l_l_
.TXT 8 -52 24 0
Cg a16.250000,71.000000,28
{\rtf1\ansi \deff0
{\fonttbl
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{\f1\fnil Symbol;}
{\f2\fnil Arial;}
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{\plain {Effective Length (Leff) =}}
}
.EQN 0 25 25 0
{0:Leff}NAME:({0:\l}NAME)/({0:\p}NAME)*{0:tan}NAME(({0:\p}NAME*{0:ReqLen}NAME)/(2*{0:\l}NAME))
.EQN 0 19 26 0
{0:Leff}NAME={0}?_n_u_l_l_
.TXT 5 -31 12 0
Cg a7.625000,61.000000,13
{\rtf1\ansi \deff0
{\fonttbl
{\f0\fnil Times;}
{\f1\fnil Symbol;}
{\f2\fnil Arial;}
}
{\plain {Einc = V/M}}
}
.EQN 2 -12 4 0
{0:Einc}NAME:({0:Voc}NAME)/({0:Leff}NAME)
.TXT 0 12 13 0
Cg a30.875000,49.000000,51
{\rtf1\ansi \deff0
{\fonttbl
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{\f1\fnil Symbol;}
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{\plain {Voc = open circuit RF V induced
 into std. dipole}}
}
.TXT 2 0 15 0
Cg a37.125000,61.000000,61
{\rtf1\ansi \deff0
{\fonttbl
{\f0\fnil Times;}
{\f1\fnil Symbol;}
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{\plain {Leff = effective length of dipole
 near half-wave resonance}}
}
.TXT 4 -12 27 0
Cg a19.250000,71.000000,33
{\rtf1\ansi \deff0
{\fonttbl
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{\f1\fnil Symbol;}
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{\plain {Estimate of Calibration Error:}}
}
.TXT 3 0 30 0
Cg a70.250000,71.000000,242
{\rtf1\ansi \deff0
{\fonttbl
{\f0\fnil Times;}
{\f1\fnil Symbol;}
{\f2\fnil Arial;}
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{\plain {A. RF to DC voltage transfer, and
 extraneous interfering sources of RF.  
The latter varies with the actual site. 
 The estimated error for DC metering with
 input impedance > 50 megohms, at a suitable
 open-field test site is + or - 0.4 dB.}}
}
.TXT 8 0 32 0
Cg a69.625000,71.000000,294
{\rtf1\ansi \deff0
{\fonttbl
{\f0\fnil Times;}
{\f1\fnil Symbol;}
{\f2\fnil Arial;}
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{\plain {B. Disturbance of field due to 
interconnecting instrument cables and nearby
 reflective objects.  With cables oriented
 at right angles to the plane of the linear
 polarized field, and reflective objects
 > 30 meters away, for frequencies > 50 
mHz, this error is estimated to be + or 
- 0.5 dB.}}
}
.TXT 10 0 33 0
Cg a71.125000,71.000000,222
{\rtf1\ansi \deff0
{\fonttbl
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{\f1\fnil Symbol;}
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{\plain {C. Miscellaneous error due to DC
 voltmenter calibration, dipole alignment,
 and physical parameter measurement.  For
 modern instruments and typical engineering
 practices, this error is estimated to be
 less than 0.4 dB.}}
}
.TXT 7 0 35 0
Cg a69.500000,70.000000,134
{\rtf1\ansi \deff0
{\fonttbl
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{\f1\fnil Symbol;}
{\f2\fnil Arial;}
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{\plain {The worst case uncertainty of RF
 field measurement using the open circuit
 dipole method is the simple sum, A+B+C,
 or  +  - 1.0 dB.}}
}
.TXT 5 0 37 0
Cg a69.875000,70.000000,579
{\rtf1\ansi \deff0
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{\plain {This worst case method is very 
conservative; the probability of each error
 source being at its extreme value and in
 the worst possible direction approaches
 zero.  More realistic is the Root-Sum-of-the-Squares
 (RSS) method.  This is described  and accepted
 by Hewlett-Packard, in their power measurement
 application notes. This error prediction
 method is based on the fact that the field
 measurement process, although not stochastic,
 consists of error sources that are independant
 of each other.   Therefore, the RSS estimation
 of accuracy for the method described is:\par 
\par }}
}
.EQN 17 0 39 0
\((.4)^(2)+(.5)^(2)+(.2)^(2))={0}?_n_u_l_l_
.TXT 4 1 40 0
Cg a8.500000,69.000000,17
{\rtf1\ansi \deff0
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{\plain {+ or - 0.67 dB}}
}
.TXT 13 1 44 0
Cg a35.750000,80.000000,68
{\rtf1\ansi \deff0
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{\f1\fnil Symbol;}
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{\plain {Case where current distribution
 is triangular; Len < }{\f1 l}{/9:}}
}
.EQN 0 41 45 0
{0:Leffs}NAME:{0:ReqLen}NAME*.5
.EQN 3 -40 46 0
{0:\l}NAME:.05,.06;3
.TXT 0 12 47 0
Cg a11.875000,67.000000,21
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{\plain {(max useable freq)}}
}
.TXT 5 -17 48 0
Cg a18.375000,84.000000,30
{\rtf1\ansi \deff0
{\fonttbl
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{\f1\fnil Symbol;}
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{\plain {Open Circuit output per V/M}}
}
.TXT 4 0 49 0
Cg a15.125000,84.000000,23
{\rtf1\ansi \deff0
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{\f1\fnil Symbol;}
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{\plain {Maximum Useable freq}}
}
.EQN 0 29 51 0
{0:f}NAME({0:\l}NAME):{0:\l}NAME*.1111*.5
.EQN 11 -29 50 0
&&(_n_u_l_l_&_n_u_l_l_)&{0:f}NAME({0:\l}NAME)@&100&(_n_u_l_l_&_n_u_l_l_)&(299.8)/({0:\l}NAME)
1 1 1 1 0 0 1 PROBE UPPER FREQ
0 1 1 0 0 0 1 O.C. VOLTS OUTPUT / V/M
0 1 0 0 NO-TRACE-STRING
0 2 1 0 NO-TRACE-STRING
0 3 2 0 NO-TRACE-STRING
0 4 3 0 NO-TRACE-STRING
0 1 4 0 NO-TRACE-STRING
0 2 5 0 NO-TRACE-STRING
0 3 6 0 NO-TRACE-STRING
0 4 0 0 NO-TRACE-STRING
0 1 1 0 NO-TRACE-STRING
0 2 2 0 NO-TRACE-STRING
0 3 3 0 NO-TRACE-STRING
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0 3 0 0 NO-TRACE-STRING
0 4 1 0 NO-TRACE-STRING
1 1 71 70 0 3