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Which Locator & Transmitter Is Right for You?

Choosing the right RadioDetection locator comes down to your specific needs for accuracy, data collection, and integration with GIS systems. The models you listed build on each other, with each step up adding advanced features for more demanding applications.

Differences between the RD7200, RD8200, RD8200G, and RD8200SG locators.

RD7200

The Professional Standard

The RD7200 is a robust, all-industry locator designed for everyday professional use. It is a solid choice for most common locating tasks.

Key Features:

  • ✅ Core Locating: Provides fast, accurate, and repeatable measurements for a variety of utilities.
  • ✅ Usability: Features a Swing Warning System (using a gyroscope to ensure proper use), StrikeAlert (warnings for shallow cables), and vibration feedback.
  • ✅ Frequencies: Includes 8 active and 3 passive frequencies, which are sufficient for most jobs in construction, power, and telecom.

Best For: General contractors, utility technicians, and field crews who need a reliable, easy-to-use tool without the need for advanced data logging or mapping.

RD8200

Advanced Precision & Flexibility

The RD8200 is a significant upgrade from the RD7200, adding more frequencies and advanced features for complex environments.

Key Features (in addition to the RD7200):

  • ✅ More Frequencies: Expands to 21 active frequencies, allowing you to trace a wider range of utilities and better distinguish between lines in congested areas.
  • ✅ Current Direction (CD): When used with a compatible Tx-10 transmitter, this feature helps you identify and trace a specific cable in a congested network where multiple utilities run close together.
  • ✅ Data Logging: Logs usage data, which can be reviewed by supervisors to monitor best practices and identify training needs.

Best For: Utility service providers and engineers who require more precision, the ability to work in complex environments, and a basic level of data logging for compliance and analysis.

RD8200G

Integrated GPS for Data Logging

The "G" in RD8200G stands for GNSS (Global Navigation Satellite System) or GPS. This model adds an internal GPS receiver for automatic data logging.

Key Features (in addition to the RD8200):

  • ✅ Integrated GPS: Automatically logs the location, depth, and other locate parameters of every measurement you take.
  • ✅ Proof of Work: Provides comprehensive data to prove that a locate was performed correctly, which is crucial for liability and compliance.
  • ✅ Data Export: You can easily export the logged data in formats like KML (for Google Earth) and CSV for analysis and reporting.

Best For: Supervisors, project managers, and organizations that need detailed, verifiable records of their locating activities for safety, auditing, and compliance purposes.

RD8200SG

Survey-Grade Mapping

The "SG" in RD8200SG stands for Survey Grade. This is the most advanced model in the lineup and is the tool of choice for mapping professionals.

Key Features (in addition to the RD8200G):

  • ✅ Survey-Grade GNSS: Integrates high-accuracy GNSS technology for centimeter-level mapping. It can connect with external GNSS receivers (like Trimble Catalyst) for even higher precision.
  • ✅ Dual Bluetooth: Allows simultaneous connection to a transmitter for remote control and an external GNSS receiver or mobile device.
  • ✅ GIS Integration: Designed to seamlessly integrate with GIS mapping software like PointMan to create detailed and accurate maps in the field.

Best For: Professional surveyors, GIS technicians, and utility mapping specialists who need to create precise, geolocated maps of underground infrastructure for engineering, planning, and asset management.

Check out Radiodetection Locator Comparison Table for more detail features.

To determine the right RadioDetection transmitter for you, the primary factor is the power output you need for your jobs. More power allows for greater depth, longer distances, and better performance in areas with a lot of signal interference.

Tx-1

The Tx-1 is the most basic model, offering 1 Watt of power.

  • ✅ Best for: Simple, short-distance locating jobs. It is ideal for quick checks on small sites or in areas where the utility line is known to be shallow.

  • ✅ Features: It's lightweight and efficient for straightforward tracing tasks.

  • ✅ Who it's for: Users with minimal tracing needs or for use in small, confined spaces.

Tx-5

The Tx-5 is the most popular and versatile choice with 5 Watts of power.

  • ✅ Best for: The majority of common locating applications. It provides a great balance of power, battery life, and flexibility.

  • ✅ Features: It has enough power to trace utilities over moderate distances and depths.

  • ✅ Who it's for: Most professional contractors and utility workers who handle a wide variety of jobs.

Tx-10

The Tx-10 is the most powerful model, delivering 10 Watts of power.

  • ✅ Best for: Challenging environments and large-scale projects. Its high power is essential for long-range tracing, locating very deep utilities, or working in areas with high-resistance soil and significant signal interference.

  • ✅ Features: Provides the maximum signal strength for difficult jobs.

  • ✅ Who it's for: Professionals working on major infrastructure projects, in rural areas, or on large transmission and pipeline networks.

In summary, choose based on the scale of your work:

  • Small jobs? Go with the Tx-1.

  • Most jobs? The Tx-5 is the best all-around choice.

  • Big, difficult jobs? The Tx-10 is the right tool for maximum performance.

Transmitter Compatibility

All of these locators can be paired with RadioDetection's Tx-1, Tx-5, and Tx-10 transmitters. The choice of transmitter depends on the power you need for a given job (1, 5, or 10 Watts, respectively).

 

CAT (Locator) Models

The CAT locator's primary purpose is to detect the signals sent by the Genny transmitter and the signals from live cables. The models you asked about differ based on their processing power and data capabilities.

CAT4

This is the standard, entry-level model. It has the three core detection modes (Power, Radio, and Genny), which help you find live power cables, radio signals, and the Genny's signal. It is a solid, no-frills tool.


Best For: Individuals or companies who need a basic, reliable tool for quick utility checks and simple avoidance.

CAT4+

The "+" indicates an advanced processor. This model is the current industry standard. It has all the features of the CAT4 but can detect signals more quickly and with greater sensitivity, making it more reliable for finding buried utilities.

Best For: Everyday, professional locating where you need a fast and accurate tool to avoid hitting underground utilities.

gCAT4+

The "g" stands for GPS. This is the most advanced model in the CAT line. It has all the features of the CAT4+ but adds an integrated GPS receiver. This allows the tool to automatically log the precise location of every measurement you take.

Best For: Professionals who need to map the exact location of utilities for GIS systems, engineering projects, or to provide verifiable proof of work with both location and usage data.

Check out Radiodetection Locator Comparison Table for more detail features.

Genny (Transmitter) Models

The Genny transmitter sends a strong signal down the utility line, which the CAT locator then detects.

Genny4

This is the standard transmitter. It provides a strong, single-frequency signal (33 kHz) that is ideal for most locating jobs. It has a high-power setting for locating deeper or longer utilities.

Best For: Basic locating and general-purpose use with any CAT locator.

Genny4+

This is an advanced model designed to work with the CAT4+ and gCAT4+. It includes the standard Genny4 features but adds a new "Small-diameter locate" mode that helps to find small cables and utilities that can be difficult to detect with standard signals.

Best For: Locating fiber optic cables, drop wires, and other smaller utility.

 

Quick Recommendations

  • ✅ RD7200: For versatile locating across many utility types
  • ✅ RD8200: For advanced, precise work in challenging or complex environments
  • ✅ RD8200G: Supervisors, project managers, and organizations that need detailed, verifiable records of their locating activities for safety, auditing, and compliance purposes.
  • ✅ RD8200SG: Professional surveyors, GIS technicians, and utility mapping specialists who need to create precise, geolocated maps of underground infrastructure for engineering, planning, and asset management.
  • ✅TX-5: For most standard locating jobs
  • ✅ TX-10: For long-distance, deep, or hard-to-locate jobs
  • ✅ CAT4+ & Genny4 : Basic Avoidance
  • ✅ CAT4+& Genny4 or Genny4+: Standard Professional Use
  • ✅ gCAT4+ & Genny4+: Mapping & Proof of Work

New to locating or done some before?

Contact Us If you cant find what you are looking for:

🤙 +61 8 9335 1718

📧 team@laserman.com.au

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