NATURAL SOURCE MAGNETOTELLURICS
May 2002 Section 13, Page 8
At this point, pressing the soft function keys in Menu 3 will result in the following:
VarAsp. Pressing will put the operator in the variable A-spacing input routine as
shown below:
MENU 3A
Ref. Pressing will
permit the operator to choose reference
stations for remote reference vector or
tensor MT measurements. In the
diagram below, Channel 6 Hx is chosen
as the remote reference for Channel 4
(Ey,Hx) and Channel 7 Hy is chosen
for Channel 2 (Ex,Hy) as seen below:
MENU 3B
ExtAmp. Pressing
enables
input for preamplifier gains, such as the
SC-8 Signal Conditioning box. In this
example we have set all of the E-field
channels to a gain of 32 and the H-field
channels to a gain of 8.
0097 AMT 0538 15 Mar 98 08:53:47
OPER JOHN DOE TX ID Z-30 A-SP 100
JOB 94007 LINE AJO ROAD N SPREAD 1
Ch A-SP Ch
1 Ex 100 9 OF F
2 Hy 10 OFF
3 Ey 100 11 OFF
4 Hx 12 OFF
5 Hz 13 OFF
6 Hx 14 OFF
7 Hy 15 OFF
8 OFF 16 OFF
CONTINUE to save changes; ESCAPE to exit
0097 AMT 0538 15 Mar 98 08:53:47
OPER JOHN DOE TX ID Z-30 A-SP 100
JOB 94007 LINE AJO ROAD N SPREAD 1
Ch Ref by Ch
1 Ex 9 OFF
2 Hy 7 10 OFF
3 Ey 11 OFF
4 Hx 6 12 OFF
5 Hz 13 OFF
6 Hx 6 14 OFF
7 Hy 7 15 OFF
8 OFF 16 OFF
CONTINUE to save changes; ESCAPE to exit
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