Roy - Your comment made me double check my work. I was using ON4UN's
software and I was entering the estimated loss at my design frequency.
Then I realized when I cranked up the loss (to see the effect clearly)
that it wasn't doing anything with impedance along the line. And then
I visited Owen's link for the second time and plugged in the details
from my cable. I must have done something wrong the first time -
because let me tell you it was dead nuts what I saw (Zo 75.01-j1.45
). Case closed!

-Scott, WU2X

Parameters
Transmission Line Belden 9204 (RG-59/U)
Code B9204
Data source Belden
Frequency 3.800 MHz
Length 42.700 feet
Zload 54.00+j0.00
Yload 0.018519+j0.000000
Results
Zo 75.01-j1.45
Velocity Factor 0.660
Length 89.94 °, 0.250
Line Loss (matched) 0.269 dB
Line Loss 0.279 dB
Efficiency 93.77%
Zin 102.11-j3.74
Yin 0.009780+j0.000359
, , RL, VSWR (source end) 1.53e-1-j8.49e-3, 0.153 -3.2°, 16.3dB,
1.36
, , RL, VSWR (load end) -1.63e-1+j9.38e-3, 0.163 176.7°, 15.7dB,
1.39
7.24e-4+j3.68e-2
k1, k2 3.19e-6, 1.79e-11
Loss model source data frequency range 10.000 MHz - 1000.000 MHz
Correlation coefficient (r) 0.999661