RECEIVER SETUP
Section 6, Page 31 May 2002
Option 6 – Turn OFF (or ON) noisy gain mode
Noisy Gain mode: (default setting – except for TEM)
Works with automatic gain ranging
Permits a maximum signal of ±1.0 volts (providing headspace for SP drift)
Puts the Gains into the second stage first (G2) and then adjusts the Gain of the
first stage (G1), if necessary.
Standard gain mode:
Works with automatic gain ranging
Permits signal amplification up to ±2.25 V
Adjusts G1 first, then G2.
Option 7 – Set number of repeats
Sets the number of repeats for each data stack. Used for quality control and fast
acquisition of multiple stacks with the same settings.
Option 8 – Turn on G0 gain calculation
ON and OFF toggle switch for the G0 gain stage automatic gain calculation.
After setting the gains using one of the above methods, the LCD displays the values in
gain stages G0, G1 and G2 and the Attenuator setting.
Screen Description
G0, G1, G2 – The three gain stages
Atn-x1, x 1/8 Attenuator
SP – Self-potential in millivolts.
GGGA - Gains of G0, G1, and G2 are the values of the exponent where the gain is
expressed as a power of 2. “A” is the attenuator setting: I (in) or O (out).
0205 RPIP0613 11.7 08 Jan 18 13:41:43
Survey D-D
Tx 1Rx 3N OUT
1Hz 4CyclesTxCurr 1
CH N G0 G1 G2 Atn Sp GGGA
1ON 1 116 1IN 1.79040I
2ON 2 1 8 1OUT 0.10030O
3ON 3 132 1OUT -0.18050O
4ON 4 164 4OUT -0,14062O
CONTINUE to save changes; ESCAPE to exit
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