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Introducing the SK-35R Machine Control 35W Repeater Kit

An easier way to extend your RTK network

At Satel USA, we’ve been hearing the same request from integrators and machine control professionals across construction, agriculture, and surveying: make it simpler to expand wireless RTK coverage in the field.

So, we listened—and built a solution. The new SK-35R Machine Control 35W Repeater Kit is designed to remove the guesswork and provide an off-the-shelf package that just works. 

Whether you’re supporting machine control systems, GNSS operations, or large-scale RTK deployments, this kit makes setup faster, easier, and more reliable.

What the SK-35R Does

The SK-35R extends your RTK network’s reach by delivering long-range wireless connectivity for GNSS and precision machine control. Built around the trusted SATEL-EASy Pro+ 35W Radio, the kit provides the power and durability you need to maintain consistent communications across tough environments.

Instead of piecing together radios, mounts, and cables on your own, the SK-35R arrives ready to deploy. That means less time troubleshooting—and more time getting your machines running accurately.

What’s Inside the Kit

The SK-35R includes everything you need to get started:

  • SATEL-EASy Pro+ 35W Radio – the backbone of the kit, providing proven reliability and range.
  • Pre-configured radio programming (with a valid FCC call sign, or similar).
  • All necessary cabling and accessories – no last-minute runs to source missing parts.
  • Mounting hardware for quick and secure field installation.

For complete technical details, you can check out the SK-35R datasheet here.

Why This Kit Matters

The SK-35R was designed with one simple goal: make life easier for integrators and operators.

  • No guessing which parts are compatible
  • No wasted time on complex setup
  • A ready-made solution that extends RTK coverage with confidence

Whether you’re on a construction site, managing a farm operation, or surveying remote areas, the SK-35R keeps your RTK network strong—without the headaches.

FCC Licensing Made Simple

Need help with FCC licensing? We’ve got you covered. 

Bundle the SK-35R with our FCC Licensing Service and you’ll save on licensing fees. Better yet, we’ll handle the paperwork so you can stay focused on your projects instead of navigating red tape.

Get Started Today

The SK-35R Machine Control 35W Repeater Kit is available now and ready to ship. If you’re looking for a straightforward way to extend your RTK network and deliver reliable connectivity in the field, this kit is built for you.

Contact Satel USA today to learn more, get a quote, or bundle the kit with FCC licensing.

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4 Key Antenna Basics for Wireless Communications

Antennas are essential components in wireless communication systems. They convert electrical signals into electromagnetic waves for transmission and vice versa for reception. Understanding the basics of antennas can help in selecting the right type for specific applications.

Frequency Band

Antennas are designed to operate within specific frequency bands, which are ranges of radio frequencies allocated for particular uses. 

The frequency band determines the antenna’s size and design. 

For example, lower frequency bands (like VHF, used for FM radio) require larger antennas, while higher frequency bands (like microwave, used in WiFi and cellular networks) use smaller antennas. 

Choosing an antenna that covers the correct frequency band used by your radio is crucial in ensuring your system performs well. 

Using an antenna that is not suited for your operating frequencies means the radio will have a hard time both transmitting and receiving data, and may even damage sensitive radio components.

Omnidirectional versus Directional Antennas

Antennas can be categorized based on their radiation pattern:

Omnidirectional Antennas: These antennas radiate or receive signals in all directions equally, or nearly so, in a horizontal plane. They are commonly used in applications where the signal needs to cover a broad area, such as in 2 way voice radios or Wi-Fi routers.

Directional Antennas: These antennas focus their energy in a specific direction, providing greater range and signal strength in that direction. A common example is the Yagi antenna, which is often used for point-to-point communication in SCADA networks, or for TV reception.

Antenna Gain

Antenna gain is a measure of the antenna’s ability to direct or concentrate radio frequency energy in a particular direction or pattern. 

It is usually expressed in decibels (dB, dBi, dBd). Higher gain antennas can transmit signals over longer distances but have a narrower beam width, meaning in some cases they must be precisely aimed.

It is key to remember that an antenna is a passive device – it can not amplify a radio signal, only concentrate energy in one or more directions. So, antennas achieve higher signal strength in some directions at the cost of lower signal strength in other directions.


Essentially, an antenna simply directs the signal that already exists. Its metal shape gathers incoming (or outgoing) radio waves—just like a flashlight reflector collects light from the bulb—and guides that energy toward a chosen direction.

Antenna Polarity

Polarity refers to the orientation of the electric field of the electromagnetic wave transmitted or received by the antenna. The most common types are:

Vertical Polarity: The electric field is perpendicular to the ground.

Horizontal Polarity: The electric field is parallel to the ground.

Circular Polarity: The electric field rotates as the wave propagates, which can be either right-hand or left-hand circular polarization.

Matching the polarity of the transmitting and receiving antennas is very important to minimize signal loss. Signal loss can be 20dB or more (a 100x difference in power) if transmitting and receiving antennas are not polarity matched. 

Conclusion

Understanding these basic antenna concepts—frequency band, omnidirectional versus directional characteristics, gain, and polarity—can help in selecting the right antenna for your communication needs. Whether you need broad coverage or long-range transmission, the right antenna design plays a critical role in system performance.

If you need help, feel free to contact us. We’ll be happy to provide a technical help.

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Introducing the Satel EASy+ Machine Control Kit

In demanding industries like construction, mining, and agriculture, every minute of downtime  can translate into lost productivity, higher costs, and reduced margins . Satel USA’s new EASy+ Machine Control Kit [SK-UHFPLUS] is engineered to tackle these challenges head-on by delivering reliable UHF RTK connectivity and precision positioning—ready to deploy right out of the box.

Key Features

  1. Industry-Leading Compatibility
     The SK-UHFPLUS supports over 20 radio protocol modes, ensuring seamless integration with existing UHF base stations. Whether you’re retrofitting a fleet already running Satel radios or leveraging OEM systems from Topcon, Trimble, Hemisphere, or Leica (and more!), you’ll enjoy plug-and-play connectivity.
  2. User-Friendly Configuration
     Forget digging through software menus or sourcing extra tools. The built-in LCD display lets you instantly monitor signal strength and adjust critical settings on the fly.
  3. Built Tough for Harsh Environments
     Designed and tested for 10+ years of reliable operation, the SK-UHFPLUS stands up to extreme temperatures, moisture, dust, and mechanical shocks—so you can focus on the job, not equipment maintenance.
  4. Quick, Flexible Installation
     Magnetic mounts for both the radio and antenna make swapping hardware between machines a breeze. Whether you’re upgrading an excavator, dozer, or pile driver, you’ll save time and labor costs on installation.
  5. Versatile Deployment
    From mining haul trucks and dozers to smart paving solutions and precision farming tractors, the SK-UHFPLUS adapts to a wide range of heavy equipment use cases. Its compact design and rugged build mean you can deploy RTK positioning wherever you need it most.

What’s Included in the Kit

  • SATEL-EASy+ 1W (YM6050) Radio – High-performance UHF RTK radio for clear, robust data links
  • Data/Power Cable (SC15D) – Deutsch power connector + D9 data connector
  • Radio Antenna (YAS2MW) – Optimized for maximum signal reception, range, convenience.
  • Antenna Magnetic Mount (SAMMT) & Radio Magnetic Mount (SAMME) – Secure, tool-free magnetic mounting on metallic surfaces

Who Needs  the SK-UHFPLUS?

  • Construction Managers seeking sub-inch accuracy/dozers. and excavators
  • Mining Operations that require robust, long-range RTK in remote sites
  • Agricultural Producers aiming to upgrade tractors and harvesters for precision guidance and related applications
  • Rental Fleets looking for retrofit solutions to maximize equipment utilization

Get Started Today

Elevate your field performance with the Satel EASy+ Machine Control Kit. Visit SK-UHFPLUS product page for full specifications and pricing, or reach out to our sales team.

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SATEL R&D: Savings and Safety for Autonomous Infra Construction

At Satel USA, we’re excited to share some groundbreaking developments from SATEL that we’re bringing to you. For SATEL, research is essential, fueling the evolution of communication networks and ensuring they remain at the forefront of innovation. Through their SWARM project, SATEL is developing advanced technology for autonomous construction equipment.

What is SWARM Project:

The Autonomous Low-Emission Swarm of Infra Construction Machinery (SWARM) project, in collaboration with the University of Oulu and industry partners, focuses on creating remote and autonomous control systems for heavy construction machinery. SATEL’s smart combination of technologies ensures that autonomous and unmanned machine groups can operate without interruption, continuously transmitting essential information like safety signals.

As SATEL’s Head of Technology Heikki Keränen says, “In the SWARM project, SATEL’s interest is to seamlessly connect the different roles of the machinery fleet by means of transmission technology.”

The SWARM project has received funding from NextGenerationEU, highlighting its importance and potential impact.

Why it Matters to You:

  • Increased Efficiency: Autonomous systems help reduce downtime and keep your projects running smoothly.
  • Improved Safety: Continuous, reliable connectivity means safety signals are always transmitted, minimizing risks on-site. Keränen highlights, “Through ongoing research, SATEL can develop more reliable, and secure high-performance connectivity solutions, meeting the ever-growing demands of the off-highway vehicle industry and application.”
  • Smooth Operations: Enhanced coordination between machines prevents collisions and unnecessary delays.

SATEL’s smart combination of Wi-Fi, Mesh networking, and 5G, along with their private radio technology, ensures your equipment operates flawlessly. This innovative approach not only makes your work easier but also enhances the overall efficiency of your projects.

At Satel USA, we’re proud to distribute these radio solutions to help you achieve more efficient and safer operations with less hassle. Let’s make your next project more productive together—check out some of our SATEL radios for your next mission-critical operations!

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SATEL Radio Modems: EASy+ vs PROOF-TR4+ Comparison Guide

1. Introduction

Robust and secure radio systems are critical to smooth coordination, remote monitoring, and real-time data transfer in machine control industries. To help professionals choose the best model for their needs, this article compares two of SATEL’s well-known models, the SATEL EASy+ and the PROOF-TR4+.

2. Understanding the Basics

FeatureSatel EASy+Satel Proof TR4+
Frequency Range403-473 MHz403-473 MHz
Channel Spacing12.5/20/25 kHz12.5/20/25 kHz
EncryptionAES128/AES256 (optional)AES128 (standard); AES256 (optional)
InterfacesRS-232, RS-422, RS-485RS-232 only
Power OutputUp to 1WUp to 1W
User InterfaceFront display, indicator lights, field-configurableRequires an external device for configuration. No LCD or indicator lights.
DurabilityIP 52 ratings prevents dust and debris, should be kept away from water and liquids.IP69K rated for extreme dust and water protection
Connector TypeD-15 female for data and power.Deutsch 6 pin interface connector
ApplicationsIdeal for short to medium range transmission, high-quality receiver for long rangeIdeal for short to medium range transmission, high-quality receiver for long range
Suited for extreme environments, like smart farming, machine control, marine applications

3. Comparing Specs

  • Frequency Range and Power: Both radios cover the same frequency range with equal power output, high quality receiver, and same protocols, ensuring robust performance.
  • Interface and Programming: The EASy+ is user-friendly with its front-panel controls, while the PROOF-TR4+ requires laptop setup for adjustments.
  • Durability and Environmental Resistance: The PROOF-TR4+ stands out with its IP69K rating, ideal for tough environments; the EASy+, with less stringent protection, is suitable for indoor installations such as a cabinet or machine or tractor cab. 

4. Field Performance

Both the Satel EASy+ and Satel EASy Proof TR4+ provide reliable long-range connectivity and are energy-efficient, ensuring extended operational times with minimal recharges, ideal for remote locations.

5. Breaking Down Costs

Choosing between the SATEL EASy+ and the PROOF-TR4+ often boils down to system compatibility and minimizing extra expenses. While both modems serve similar applications, the PROOF-TR4+ costs more due to its advanced features and specific integration requirements.

6. Conclusion

Do you prefer a simple device that is easy to program in the field? The EASy+ is your best option and is also more cost effective. If you need extreme durability and have a cable harness that already uses a Deutsch connector for a drop-in set up and you have the resources to program with an external device, the EASy Proof-TR4+ has you covered.

If you aren’t sure, give us a call and we can walk you through the different options and help you make an informed decision.

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Tech Note: High Power Radios and Heat

High power radios like the Satel EASy Pro and EASY Pro+ generate a lot of heat while transmitting, so they can get hot to the touch – especially when it is also hot outside. While output power on these radios is up to 35W, they need as much as 120W of power to generate this signal, with the difference ending up as heat (up to 85W of heat).

If radios are getting too hot, there are numerous ways to reduce or mitigate the amount of heat generated. Many of these techniques will also save power and increase run time on battery systems.

  • Avoid using slow GMSK radio protocols including TrimTalk450 and PacCrest-GMSK if possible. These modes can generate up to twice as much heat as more efficient 4FSK modes, like Satel 3AS or PacCrest-4FSK.
  • Reduce transmit power. Often 25W or even 10W of transmit power is plenty to get the range you require. Additional height on the transmitting antenna system, such as using a tripod or antenna mast system is often more useful than high transmitter power to increase range.
  • Use Satel 3AS mode with no error correction (also known as forward error correction or FEC). Error correction adds significant overhead (approximately 30%) which runs the transmitter longer and is only useful in conditions with extremely poor signals. While disabling error correction can reduce range, this is usually not meaningful for 35W transmitters.
  • Make sure the TD light is not solid green. This indicates the radio is in test mode and this will cause excess heat generated and may disrupt the normal operation of the radio system. A blinking green TD light is expected in normal operation and indicates periodic data transmission.
  • Ensure the radio is mounted vertically (antenna connector facing up), so that air can flow up through the heat sink.
  • Get a 25kHz license. 25 kHz channels are up to twice as fast as 12.5kHz channels, so operating at 25kHz will run the transmitter for shorter periods of time and generate less heat. Note: Operating at 25kHz in the United States requires a license specifically authorizing this use and requires the use of 4FSK or faster compatibility modes.
  • If using an EASy Pro radio, consider upgrading to a EASy Pro+. The EASy Pro+ has a wider range over power outputs (1-35W vs EASy Pro’s 10-35W), and is 20-50% more power efficient, which leads to less heat generated.

Still have questions? Contact us for additional support.

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4 Key Considerations in Choosing Machine Control Solutions for Construction Equipment

Introduction

Selecting the right machine control options for construction equipment is crucial, depending on specific use cases. With the evolution of construction equipment machine control, including grade control, its application is expanding beyond typical excavation and earthworks contractors to commercial, security, residential sectors.

Key decision factors extend beyond choosing between 2D and 3D grade control systems. While 2D systems utilize physical landmarks or lasers for grading accuracy, 3D systems employ advanced positioning technologies like GPS, and sometimes local position systems (LPS), especially in areas where satellite signals are obstructed.

One critical consideration is the absence of a universal standard for topographic data in machine control technology. This is particularly relevant for contractors using mixed fleets, rental equipment, or those integrating subcontractor equipment into a unified digital workflow.

Consideration 1: Movable vs. Hardwired Systems

For sites or projects using rented machines or integrating subcontractor equipment, movable machine control systems are advantageous. These systems can be transferred between machines and often feature wireless, magnetic sensors for easy installation without permanent alterations to the equipment. Solutions like Trimble Earthworks GO! 2.0 and the iDig System, which includes solar-charged sensors, exemplify this adaptability.

Consideration 2: Aftermarket vs. OEM Solutions

The 2023 State of the Industry Construction Technology Report highlights the adoption of both OEM and aftermarket machine control. Despite OEM solutions being more prevalent, the lack of data standards and the need for flexible solutions make aftermarket options, like those offered by Unicontrol, appealing for their versatility and compatibility with various machine types.

Consideration 3: Purchase or Subscription Models

The choice between buying or subscribing to machine control technologies is significant. Subscription models, like Trimble Works Plus, offer flexibility and financial accessibility, particularly beneficial for smaller contractors. Larger contractors also find value in subscriptions for aligning technology costs with project budgets.

Consideration 4: Automated Equipment vs. Robotics

The emergence of construction robotics is extending the capabilities of traditional equipment. Vendors are increasingly adopting robots-as-a-service models to introduce innovations like Moog’s solar Cobot and various robotics solutions by Sarcos Robotics. These advancements present new opportunities for enhancing productivity and safety in construction operations.

Conclusion

Selecting machine control solutions for construction equipment involves careful consideration of various factors, including technology type, compatibility, financial models, and the emerging role of robotics in enhancing construction capabilities.

SATEL USA’s Role in Machine Control

At SATEL USA, we understand the critical importance of minimizing downtime and maximizing operational reach on the construction site. Our Machine Control solutions, featuring the cutting-edge SATELLINE-EASy, are tailored to meet these exact needs. Designed specifically for integration in heavy equipment cabs, this kit represents the pinnacle of precision and reliability. At its heart lies the robust and high-quality SATEL EASy radio, ensuring that your fleet remains versatile and fully compatible with any UHF base station on-site.

The EASy Machine Control Kit distinguishes itself with its ability to seamlessly connect to the GPS on the cab, allowing for the continuous reception of RTK corrections without any downtime.

Check out our EASy Machine Control Kit for more details.

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Power Up Your Industrial Operations: Discover the Advanced Power Enhancements of Satel EASy Pro+

Industrial operations require rugged, adaptable connectivity that maximizes uptime. The Satel EASy Pro+ delivers – evolving high-power radio technology to meet the demands of your job sites, plant operations, and more.

As a high power 400MHz long range industrial radio modem, the Satel EASy Pro+ boasts an exceptional 35W peak output power range. It also has a wide output power range, able to transmit as low as 1W, making it perfect for both permanent installs and temporary mobile usage across surveying, construction, agriculture and more.

Power Efficiency: How the Satel EASy Pro+ Turbocharges Industrial Operations

One of the primary enhancement of the Satel EASy Pro+ is dramatically reduced power consumption across all output levels compared to earlier Satel high power radios. This translates to better battery efficiency and less heat generated for improved reliability.

Power Output Range and Consumption Enhancements

The Satel EASY Pro+ stands out with its optimized power output range and reduced consumption. Here’s how it stacks up:

Transmit PowerPower Consumption: EASy ProPower Consumption: EASy Pro+Power Savings
1Wnot available10W–
5W40W (only available on 5-25W model)20W50%
10W60W33W45%
25W90W72W20%
35W120W97W19%

Practical Applications Across Industries

The Satel EASy Pro+ is an integral communications solution for GNSS/RTK base stations used in surveying and machine control in construction and agriculture. Satel high power radios are well suited for many other mission critical applications as well, such as SCADA systems and Intelligent Transportation Systems (ITS). Its adaptability handles remote monitoring and long-haul links for far-flung equipment. Purpose-built for industrial demands.

Tailored Benefits for Industrial Communications

The Satel EASy Pro+ delivers what industries like construction and agriculture need: simple, solid communication. It’s built to work hard in tough environments. With the EASy Pro+, you get reliable data flow, essential for operations that can’t afford interruptions. It’s a straightforward tool designed for businesses small and large that want to keep jobs on track.

Beyond the Technology

The EASy Pro+ is all about keeping your workday running smoothly. With its high power output, you can expect maximum coverage and reliable uptime. That means more work done. It’s that simple.

Got questions? We’re here.

Let’s talk about how the EASy Pro+ fits into your day-to-day work.

Just drop us a line.

Our team is ready to provide the details you need. Contact us through our form for more information.

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5 Ways To Leverage Construction Industry Leaders (Number 3 Is Our Favourite)

Table of Contents

Introduction

In the dynamic realm of machine control in construction, certain brands have emerged as market leaders. This success stems from their unique selling propositions (USPs) that distinctly place them ahead in the industry. Our blog post delves deep into the standout attributes of Carlson, Hemisphere, TopCon, Leica, and Trimble, and how they dominate the machine control sector and what you can do to leverage it for your construction projects.

Carlson: The Software Specialist

Carlson Software, a key player in construction machine control, excels in software development. Known for intuitive, user-friendly, and regularly updated software, Carlson is a favorite among customers and dealers alike. The Carlson data collector exemplifies their dedication to precision and ease of use in machine control solutions.

Hemisphere: The Hardware Expert

Hemisphere distinguishes itself with specialized hardware for GPS systems. Their strategy of white-labeling hardware for other GPS brands, exemplified by their partnership with Carlson Software, showcases their commitment to top-tier GPS hardware, propelling them forward in the machine control sector.

TopCon: The Strategic Innovator

TopCon’s journey in the precision positioning market, from total stations for surveying to RTK, highlights their innovative strategy. By consolidating vendors and stringent supply chain management, and partnering with major brands like Caterpillar, TopCon has carved a significant market share in the machine control arena.

Leica: The Precision Pioneer

Swiss-based Leica brings a legacy of precision to the positioning market. Their strong U.S. presence and significant dealings with Satel radios underscore their focus on precision and understanding of client needs beyond just machine control, cementing their industry leadership.

Trimble: The Network Powerhouse

Trimble stands out with its robust network of dealers and partners, proprietary radio technology, and a renowned brand name. Their partnership with Satel enhances their market position, making them a longstanding leader in machine control.

Leveraging Industry Leaders’ USPs for Your Construction Projects

Understanding the unique strengths of each market leader in machine control is more than just an exercise in industry knowledge. It’s about empowering you, to make informed decisions for your construction projects. Here’s how this insight can be practically applied:

  1. Choosing the Right Tool for Your Specific Needs: By recognizing Carlson’s software excellence, Hemisphere’s hardware reliability, TopCon’s strategic innovation, Leica’s precision focus, and Trimble’s strong network, you can match these strengths to your project requirements. This ensures that you select the most effective machine control solutions that align with your project goals.
  2. Forecasting Future Trends: Knowledge of these USPs allows you to anticipate where the industry is heading. For instance, if precision and software integration are increasingly important in your field, focusing on companies like Carlson and Leica could provide a competitive edge.
  3. Enhanced Negotiations and Partnerships: Understanding the market positions of these companies can be a powerful tool during negotiations and when forming partnerships. You’ll have a better grasp of what each brand can uniquely offer, leading to more beneficial agreements.
  4. Optimizing Investment: With this knowledge, you can make more informed investment decisions. By aligning your equipment purchase or rental choices with the recognized strengths of these brands, you ensure a higher return on investment through improved efficiency and performance.
  5. Seamless Integration: Recognizing compatibility and integration capabilities, as highlighted by Satel USA’s Base Station Kits, helps in creating a cohesive and efficient machine control ecosystem, reducing downtime and enhancing productivity.

In conclusion, understanding the USPs of these market leaders in machine control equips you with the knowledge to choose wisely, anticipate changes, negotiate better, invest smartly, and integrate seamlessly. As you navigate the complex landscape of construction machine control, let this insight guide you to solutions that not only meet but exceed your project requirements.

Explore our Construction Machine Control Page and take the first step towards transforming your construction projects with the best in machine control technology.