Correlating Measurement Results Made With A Horizontally Polarized Dipole And A Vertically Polarized Monopole In A Cable Televlsion Environment (1988)

By Richard L. Shimp Vice President, System Services ComSonics, Inc.

When making absolute measurements of radio frequency field intensity, the most important crite- rion is to establish an undisturbed field pattern at the point of measurement. Unfortunately, in the quest to quantify the magnitude of signal egress from a cable television plant source, the engineer is faced with a situation which is far from ideal. This paper will ex- plore a few of the possible equivalent transmitting antenna configurations that make up the real cable world, how these hardware models affect propaga- tion parameters and finally how the results are viewed by commonly used receiving antennas. A method of simulating a leakage field for dipole/monopole measurement correlation will be disclosed.

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