Resistivity measurements are made with a propagation resistivity tool in a
plurality of different modes wherein the antennas may be used as both
transmitters or receivers. It is emphasized that this abstract is
provided to comply with the rules requiring an abstract which will allow
a searcher or other reader to quickly ascertain the subject matter of the
technical disclosure. It is submitted with the understanding that it will
not be used to interpret or limit the scope or meaning of the claims.