Survey Measurements

Follow Avatar Anthony Caplin
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RD8100 locator models are capable of recording up to 1000 survey measurement records to internal memory. When a measurement is taken and saved, the RD8100 locator will store the most relevant measurements taken and information, such as:

  • Log number
  • Current
  • Gain
  • Depth
  • Signal
  • Phase
  • Frequency
  • GPS location (GPS models only or when paired to GPS compatible devices)

These measurements, taken at specific points indicated by you, can be used to report and map all your findings.

If the locator is a GPS model or if paired to Pocket PC (or PDA) with GPS, running a compatible application such as SurveyCERT™+ the locator will append position and time information to the data.

NOTE: The internal GPS module needs to be switched on and connected to the GPS satellite system.

Saving Measurements

 WARNING! Do not store more than 1000 measurements, as this will reset the counter and start overwriting existing measurements. It is recommended to regularly retrieve the survey measurements data and erase them from the locator,

To save survey measurements, press the key.

To achieve accurate results the locator must be kept as still as possible during the saving process.

The locator will always save measurements to internal memory. If Bluetooth is switched on and the Bluetooth survey measurements transmission is activated, the locator will also attempt to send the saved measurement to a paired PDA running SurveyCERT+, or a compatible application. See the article on (Pairing - Bluetooth wireless connections) for instructions on how to enable the Bluetooth transmission to a paired device

If your PDA is out of reach, or if its Bluetooth features are disabled, the locator will display an error code. To avoid these errors disable the Bluetooth survey measurements transmission or ensure that your PDA is within range and correctly paired.

For more information about Bluetooth, refer to the article on (Bluetooth wireless connections).

NOTE: A flashing depth and / or current reading display means that the measurement is poor and should be taken again. Poor readings may be caused by nearby conductors or sources of electromagnetic interference.

Survey measurement transmission over Bluetooth

To configure Bluetooth survey measurements transmissions:

  1. Press the key to enter to menu.
  2. Press the or keys to select DATA menu.
  3. Press the key to enter the DATA menu.
  4. Scroll up or down to select the BT-PC option.
  5. Select ON or OFF.
  6. Press the key to make the selection and return to the main menu.

Erasing Measurements

The RD8100 locator allows you to delete all measurements. Erasing the survey measurements will wipe the RD8100 memory and is usually recommended when you begin a new survey and you have saved your previous measurements.

WARNING! Erasing measurements cannot be undone! Proceed with caution!

To erase all stored measurements:

  1. Press the key to enter the menu.
  2. Press the or keys to select the DATA menu.
  3. Press the key to enter the DATA menu.
  4. Scroll up or down to select the DEL option.
  5. Press the key to make the selection and return to the main menu.


Stored data can be transferred wirelessly to a compatible PDA running Radiodetection’s SurveyCERT+ app or a PDA compatible application.

The Radiodetection SurveyCERT+ PDA app can read survey data for post survey analysis.

NOTE: SurveyCERT+ is compatible with Bluetooth enabled PDAs running Windows Mobile 6.x operating systems.

Stored data can also be transferred using the USB connection to the RD Manager software package to be analyzed by the software’s built-in Survey measurements capabilities.

Refer to the RD Manager operation manual for more info on how to retrieve store survey data.

RD Manager’s Survey measurements functionality can be used for post survey analysis, interface to Google Earth® and easy export to GIS / mapping systems.

NOTE: RD Manager is compatible with PCs running Microsoft® Windows® XP, 7, 8 and 8.1.

To send stored data to your paired PDA:

  1. Ensure your paired PDA is switched on and running the SurveyCERT+ app.
  2. Press the key to enter the menu.
  3. Scroll to the DATA menu using the or keys.
  4. Press the key to enter the DATA menu.
  5. Scroll up or down to the SEND option.
  6. Press the key and the locator will attempt to send your stored survey data to your PDA.

NOTE: When using SurveyCERT+, the RD8100 locator Bluetooth protocol needs to be set to PPP. See Section on 'Bluetooth Protocol' - for information on how to set the Bluetooth protocol.

To obtain SurveyCERT+ for PDA:

SurveyCERT+ for PDAs and it’s operation manual are available as a free download from the Radiodetection web Site:

  1. Visit
  2. Using the menu bar, go to Resources Software downloads.
  3. Click on the SurveyCERT+ link to get to the download page and follow the instructions.

To obtain RD Manager: