RXU-8A Designed with flexibility in mind, the RXU-8A can be used as a regular MT receiver, where the extra electric channels can be used to acquire a redundant recording on the same site or to acquire an adjacent site. Excellent...
Creating a Configuration File Open EMpower and click the Prepare button 1. Select the Receiver Type 2. Recording 2.1. MT - Configuration Creator Use the Calibration and System Test options as needed 3. Calibration 3.1. Sensor Calibration 3.2. Receiver Calibration No additional configuration needed 4.
Creating a Configuration file - MT acquisition 1. Check that the Receiver type is RXU-8A 2. Select the Schedule 2.1. Manual or Automatic Start 2.2. Or for a specific schedule use, Single Shot, Daily or Weekly and click Add Schedule to define the time and date 3.
Creating a Configuration File - Electric Channel Settings 1. Select the Electric channel 2. Enable or Disable the channel(s) ○ Disable the channel(s) If you do not plan to use them during the recording (This will save space on the SD card) 3.
Creating a Configuration File - Magnetic Channel Settings 1. Select the Magnetic channel 2. Enable or Disable the channel(s) ○ Disable the channel(s) if you do not plan to use them during the recording This will save space on the SD card) 3.
Saving a MT Configuration File 1. Insert the SD Card ○ The computer must be equipped with an SD card slot or use a USB card reader 2. Click the File menu ○ Save or Ctrl+S ○ Select the SD card ○...
RXU-8A Connection - Single site MT Start by connecting: 1. Ground electrode 2. Electrodes to channel E1(Ex) (N+, S-) and channel E2(Ey) (E+, W-) ○ Channels E3, E4, E5 are normally not required in a conventional Single site MT survey 3.
SD Card - Recording Data Recording Press the power button briefly and release 1. Insert the SD card and close the Starting Acquiring GPS Ready 2. To turn on the receiver, press the Power button briefly, wait until both Automatic Start LEDs are solid blue The recording starts automatically 2.1.
Stopping a recording Press the Power button briefly and release 1. Press the Power button briefly and release to stop Recording Saving Completed recording ○ Wait until both LEDs are steady blue 2. Turn off the receiver by pressing the Power button for Keep pressing the power button 3 sec and a few seconds, until the LEDs will flash red release...
Importing - Field QC 1. Click the Field QC button 2. Select View data 3. Select the SD card ○ The recording creates two folders, log and recdata 4. Open the recdata folder ○ Select the recording file ○ Click Choose Recording Start Time (GPS timezone) Recording...
Field QC Review and Process the recording information 1. Review the Electrode Resistance values and make the necessary corrections ○ Electrode Distance (m) to GND ○ Polarity ○ E-Azimuth This section can also be used to input ○ External Filter additional field information if desired 2.
Processing MT Data 1. Click the Process button ○ Verify that the channels and references selected are the desired ones 2. Define the segment of time series to be processed ○ Select the Start and End date/time ○ Or by using the arrows to define the time period 3.
Viewing Recording Details Review that the following levels are within valid limits for quality control: 1. Battery Voltage 2. Internal Temperature 3. Number of Satellites 4. Saturated Frames ○ If saturation is not close to ~0%, review the channel configuration (see , the channel gain might be pages 4 - 6)
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