RTK GPS Systems & GNSS Receivers

Modern GNSS RTK systems can provide a relative accuracy of 0.8cm +/- 1ppm horizontal and 1.5cm +/- 1ppm in the vertical. This relative accuracy can be translated into absolute accuracy using Monuments. All of Bench Mark’s GNSS RTK systems are capable of this level of accuracy.

Modern GNSS RTK systems are comparable in price to robotic total stations, while providing a much higher level of productivity. As with robotic total stations, prices will vary depending on the manufacturer. With Bench Mark and Hemisphere, you will receive the best value for money.

GNSS surveying is extremely easy with Hemisphere equipment and Carlson or MicroSurvey software. Once the equipment has been set-up, you hold your rover upright and click a button on your data collector. Bench Mark offers training sessions for any customers who would like familiarization.

The Hemisphere S621 comes with two 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; so the Hemisphere RTK GPS battery can last between 6 and 16 hours.

Hemisphere has been making GNSS for past 30 years, initially Hemisphere GNSS products were introduced to the OEM, Marine and Agricultural GNSS markets, but only in the last 8 years have they focused on the Land Surveying and Construction markets.  In order to gain rapid market share in these markets Hemisphere GNSS has introduced very aggressive pricing and advanced RTK GNSS technology within these industries.  Test it yourself to believe to experience the difference.

A Hemisphere s321+ GNSS receiver can achieve 20-25 cm in X & Y in DGPS mode with just one WASS satellite.  It can also achieve 4-8 cm in X & Y in L-Band mode via Hemisphere Atlas global correction service H-10 service without being in RTK mode.

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 of the receivers we carry come with built in 1 or 2 watt radios. Typical range for the units are 5 – 6km in ideal conditions. If you need to go farther than this, Bench Mark offers many options to extend your range, whether you need a base booster radio like the Harxon HX-DU8608D, or a network option like StormCaster, we have what you need to get the job done.