Table T1. Transmitter/receiver spacings of the SDT sonic velocity tool.

Transmitter receiver pair:
TT1
TT2
TT3
TT4
LTT1
LTT2
LTT3
LTT4
Transmitter spacing (ft):
5
3
7
5
10
8
12
10

Notes: Transmitter/receiver spacings of the standard output of the SDT sonic velocity tool without the wideband ceramic receiver array (see Fig. F4 for a graphic representation and localization).