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What Affects Geode Trigger Cycle Times? If you're trying to optimize your Geode system for faster trigger cycles—especially in high-repeat environments—there are a few key factors to consider. The goal is to ensure that the system completes its entire cycle (trigger → recording → data transfer → re-arming) before the next expected trigger. Here’s what influences that cycle: 🧠 Core Factors That Affect Cycle Times 1. File Size (Sampling Parameters) Your sample interval and record length directly affect the size of each data file.You can view the resulting file size in the Acquisition Parameters menu.Larger files take longer to transfer, which delays the re-arm process. 2. Data Transfer Rate The Geode typically transfers data at around 450–465 kb/sec.Reducing file size is the best way to reduce transfer time and speed up the cycle. 3. Calibration Frequency By default, the system may attempt to calibrate every N shots, which takes additional time.Go to Options > Calibration and set "calibrate every N shots" to a large number (e.g., 100000) to prevent unnecessary delays. 4. Recording Delay and Record Length If you're operating in a region with a consistently deep seafloor, you can add a recording delay and reduce record length accordingly.Example: If the water column is always >0.3s, you can apply a delay of 0.2s and reduce record length by the same amount.This trims your file size and speeds up the transfer/re-arm process. ⚙️ Best Practices Use the Auto-Trigger function or set trigger sensitivity to the maximum value for testing.Monitor the cycle timing and adjust acquisition parameters to stay within your trigger window.It's often an iterative process to find the Ideal configuration for your environment.

This is for customers of the ATOM 1C and ATOM 3C seismographs (“ATOMs”) and is intended to provide guidance on ways to improve the download behavior via Wi-Fi. The ATOMs should be removed from any enclosure and positioned with the metal base plate down and relatively close to the Access Point (AP), which will increase the signal strength available to both the Atom’s and the AP. The RF environment during data download can impact whether the ATOMs can connect and on how fast they download data. Other RF devices in the vicinity (i.e., Bluetooth, wireless cameras, other APs, etc.), can cause slower download time. If there is a microwave oven operating nearby, this can disrupt communication between the ATOMs and the AP. If you are having trouble getting the ATOMs to connect and download, try setting up the AP and laptop and then turning on the ATOMs one-by-one waiting for it to connect before turning on the next unit. Another thing that will improve download performance is connecting the laptop directly to the AP with an Ethernet cable. This eliminates all of the RF traffic between the laptop and AP. Summary: *Choose a location with the least amount of RF traffic. *Remove all ATOMs from any enclosure and place each ATOM on its aluminum bottom base plate. This is the best position for the internal antenna. *When possible, everything should at least be on the same level, off the ground, on a desk or table. The AP can even be placed higher than the ATOMs. *Each ATOM should have at least a foot of space around it and be within 10 to 12 ft. of the Access Point. Being too close to the AP is also not Ideal. *The ATOMs and AP should be in the same space or room with the AP being centrally located. *Connect the Access Point directly to the Laptop with an Ethernet cable rather than using a WiFi connection between the laptop and AP. *The Access Point can connect up to 30 devices at once, but it is advisable to connect 24 or fewer. The time it takes to connect will vary from ATOM to ATOM. If after 1.5 minutes an ATOM is not found, restart the ATOM. If after another 1.5 minutes an ATOM is still not connected, it could be a hardware issue. Contact support@geometrics.com Download time may also vary from ATOM to ATOM. If an ATOM disconnects or takes a much longer time than other ATOMs to download (>30 minutes) it could be a hardware issue. Contact support@geometrics.com

The best source for seismic reflection is not always the most practical. Parameters such as cost, size, access, surface materials, and depth of penetration must all be taken into account. As always, a sledgehammer always supplies the most bang for the buck when practical. If the ground surface is too soft for a sledgehammer, you might consider a downhole seisgun. Small explosives are Ideal in terms of portability and power, but for obvious reasons are often not feasible. Less portable sources like weight drops and vibrators should be considered when access allows and required depth of penetration exceeds that of a sledgehammer or seisgun. Although depth of penetration varies widely depending on the geology and cultural noise, you can expect to see somewhere in the range of 0.25 - 0.5 seconds with the latter two sources.

There are basically three types of "gold": low concentration disseminated gold in ore, placer gold deposits and solid gold such as that associated with treasure. Magnetometers are used to find disseminated gold by its association with mineralized zones which also contain magnetite or other magnetic minerals. Magnetometers are often used in conjunction with airborne electromagnetic surveys to find the conductive ore bodies. Placer gold is the type found in buried stream channels such as the gold which sparked the California gold-rush in 1849. Gold dust and magnetic minerals have been concentrated in river banks over thousands of years. Where there is gold there is often magnetite and therefore the magnetometer can be used to locate placer gold deposits. Gold treasure is a different story and being non-magnetic gold, silver, and other precious minerals are not directly detectable by the magnetometer. The magnetometer can only detect ferrous (iron or steel) objects. If the gold is stored in an iron box or has iron materials next to the gold (such as colonial ship ballast stones in the marine environment), there is the possibility of detecting the iron material. This is true for land and marine (sunken galleon) gold bullion. The vast majority of target search surveys are performed on a grid in a "lawn mower" back and forth manner to cover the area of interest. Lane spacing is dependent on target size (magnetic mass). At a sensor to target distance of 2 to 3 meters there will need to be at least 1-2 kilograms of iron. This can produce a 1-2 nT anomaly that is detectable in a magnetically clean environment. The Ideal environment would be in a plowed farm field or the bottom of the ocean away from human activity i.e., away from a port or harbor. You will probably not be able to detect this small of an anomaly in a city or port location. The more iron mass there is, the better the chance of detecting it. Training to use the magnetometer can take 1-2 days depending on experience with setting up computerized survey equipment and a GPS. Processing the magnetic data requires several days of training and would require a geophysical background to interpret the final maps. We provide free software to make maps and estimate the target depth of burial (inversion). If you are unfamiliar with this procedure, we would recommend that you find a local geotechnical firm to look at the data to determine if there are anomalies that should be investigated further. Remembering that non-ferrous materials do not cause anomalies (gold, silver, copper, brass, aluminum, gems) you will be looking for anomalies either associated with the container OR associated with ground disturbance (i.e., gravesite). In this way some anomalies can be detected where there has been an excavation such as a gravesite. In order to understand the process more fully, we strongly suggest that you download and read the Applications Manual for Portable Magnetometers. Other additional resources are available. Understanding how the magnetometer functions and how the earth’s field responds to distortions due to ferrous materials will help you make good decisions about how to interpret and use the data to direct recovery or exploration efforts.

MFAM-SuperMag (LCS100S) or MFAM-SX (LCS100X) can be configured to achieve dead-zone-free operation, in which the combined sensor is always active no matter where in the world and which direction the device is oriented. To set up the dead-zone-free configuration: Make sure the MFAM is in the "One Sensor (No Dead Zone) run mode. If not, please refer to "How to switch the operating mode for SuperMag MFAM" on our website found here: How to switch the operating mode for SuperMag (LCS100S) MFAM?. Orient two sensors orthogonally. The Ideal relative orientation is shown below (also in the test report in the USB drive shipped with the unit). This configuration works for both the "Low Heading Error" and the "Low Noise" modes. Low Heading Error Only mode If you only wish to run the sensor in the "Low Heading Error" mode (note that SX MFAM does NOT have the "Low Noise" mode), a simpler configuration, as shown below, can also achieve the dead-zone-free operation.