RTK Survey Equipment

Bench Mark provides advanced GNSS survey equipment capable of achieving relative accuracy of 0.8 cm ± 1 ppm horizontally and 1.5 cm ± 1 ppm vertically. When used with established monuments, this precision is converted into absolute accuracy. All of our GNSS survey equipment is engineered to meet or exceed industry standards for reliability and performance.

RTK accuracy slightly decreases as the distance between base and rover increases, but modern systems maintain 1–2 cm precision up to 10–20 km when using reliable correction links. Bench Mark’s Hemisphere systems are optimized for long-baseline stability.

Typical operational range is 5–6 km with built-in radios, extendable to 20+ km when using high-power external radios or internet-based correction networks. Environmental factors like terrain, line of sight, and radio interference may affect range.

Yes – RTK does not require an internet connection when using a base-and-rover setup with built-in radios. Internet access is only needed for network-based RTK (NTRIP) or online correction services. With Bench Mark’s external radios, you can work completely offline in remote areas.

RTK survey equipment is priced comparably to robotic total stations but delivers greater productivity, faster setup, and improved field efficiency. Costs vary by manufacturer, but with Bench Mark and Hemisphere, you’ll always get the best performance-to-price value in the industry.

With Bench Mark – no. Hemisphere GNSS receivers and MicroSurvey software make surveying straightforward and intuitive. After setup, simply hold your rover upright and start collecting data with a tap on your controller. For added confidence, Bench Mark provides personalized training and onboarding support to help you get the most from your GNSS receivers and field equipment.

The Hemisphere S621 includes two batteries. Each of them provides six hours of operation. Battery life can be extended up to 16 hours for base units using Bench Mark’s external power kit. This allows your RTK GPS systems to operate continuously for long field days.

Hemisphere has been building GNSS technology for more than 30 years. After establishing itself in OEM, marine, and agriculture markets, Hemisphere expanded into surveying and construction with cutting-edge technology at aggressive pricing. This approach allows professionals to access top-tier RTK performance at a fraction of the cost.

Yes. Hemisphere GNSS receivers come fully loaded, capable of tracking and measuring signals from all five satellite constellations, ensuring optimal coverage and accuracy.

The Hemisphere S321+ can achieve:

• 20–25 cm horizontal accuracy in DGPS mode (with a single WAAS satellite).
• 4–8 cm horizontal accuracy using Hemisphere’s Atlas H-10 L-Band global correction service, even without RTK.

The Hemisphere S621 and the e-Survey E600H come with two hot swappable batteries, each with six hours of battery life. This battery life can be extended through the use of Bench Mark’s external power kit, which provides 16 hours of base operation; this means that one unit can go up to 28 hours to keep you going in the field.

All receivers come with built-in 1 or 2-watt radios, providing typical ranges of 5 to 6 km in ideal conditions. For greater distances, Bench Mark offers solutions like base booster radios (e.g., Harxon HX-DU8608D) or network options such as StormCaster to extend your RTK GPS system range.

An RTK base station is a fixed receiver that transmits correction data to a rover, improving positioning accuracy to the centimeter level. A reliable base station ensures stable, repeatable measurements and consistent survey precision, even across long distances.