Table 2-2 The Digital Profiles

Channel Name (Frequency)

Observed Parameters	Scale

units/mm
MAG	magnetics	10 nT
ALT	bird height	6 m
CXI (900 Hz)	vertical coaxial coil-pair inphase	2 ppm
CXQ (900 Hz)	vertical coaxial coil-pair quadrature	2 ppm
CPI (900 Hz)	horizontal coplanar coil-pair inphase	2 ppm
CPQ (900 Hz)	horizontal coplanar coil-pair quadrature	2 ppm
CPI (7200 Hz)	horizontal coplanar coil-pair inphase	4 ppm
CPQ (7200 Hz)	horizontal coplanar coil-pair quadrature	4 ppm
CPI (56 kHz)	horizontal coplanar coil-pair inphase	10 ppm
CPQ (56 kHz)	horizontal coplanar coil-pair quadrature	10 ppm
CXS	coaxial spherics monitor
CXP	coaxial powerline monitor
CPS	coplanar spherics monitor
CPP	coplaner powerline monitor
Computed Parameters
DFI (900Hz)	difference function inphase from CXI and CPI	2 ppm
DFQ (900Hz)	difference function quadrature from CXI and CPI	2 ppm
RES (900Hz)	log resistivity	.06 decade
RES (7200 Hz)	log resistivity	.06 decade
RES (56 kHz)	log resistivity	.06 decade
DP (900Hz)	apparent depth	6 m
DP (7200Hz)	apparent depth	6 m
DP (56 kHz)	apparent depth	6 m
CDT	conductance (see text)	1 grade