Comparisons
Single-Antenna vs Dual-Antenna RTK Receiver: Which Is Right for You?
If you’re shopping for an RTK receiver, you’ll see both single-antenna and dual-antenna models. The difference isn’t just “one vs two antennas”—it affects what you can actually do with the device.
Core Comparison
| Feature | Single-Antenna RTK | Dual-Antenna RTK |
| Positioning Accuracy | Centimeter-level | Centimeter-level |
| Heading Output | ❌ Not available | ✅ Available |
| Typical Heading Accuracy | N/A | ~0.25°–0.5° (depends on antenna spacing) |
| Best For | Mapping, static surveying | Agriculture, drones, autonomous vehicles |
| Installation | Simple | Requires fixed antenna spacing (≥0.5m recommended) |
How They Work
Single-Antenna RTK: Only calculates position coordinates (latitude/longitude). It knows where it is, but not which direction it’s facing.
Dual-Antenna RTK: Uses the phase difference between two antennas to calculate both position and heading. This gives you real-time direction data, even when the vehicle isn’t moving.
Who Should Choose Single-Antenna RTK?
Choose this if:
You only need location data, not direction.
You’re doing static surveying, drone mapping, or asset tracking.
You want a compact, low-cost setup.
Who Should Choose Dual-Antenna RTK?
Choose this if:
You need to control direction, such as keeping a tractor moving straight.
You’re working on agricultural autosteer, drones, or autonomous robots.
You want a heading solution that isn’t affected by magnetic interference.
Our Recommendation
For applications requiring both positioning and heading, the DaLang AK978H Dual-Antenna RTK Receiver is the most practical choice. It provides stable, reliable data in one compact unit, supporting all major satellite constellations and working as both base and rover.
👉 View DaLang AK978H Details to see if it fits your project.https://gnssrtkmall.com/products/ak978h-rtk-receiver-gmss-high-precision-dual-antenna-directional-agricultural-automatic-instrument-radio-gps-antenna-module-radio
👉 Ask Before Buying if you’re unsure which option works best for you.https://gnssrtkmall.com/pages/contact-us
If you’re shopping for an RTK receiver, you’ll see both single-antenna and dual-antenna models. The difference isn’t just “one vs two antennas”—it affects what you can actually do with the device.
Core Comparison
| Feature | Single-Antenna RTK | Dual-Antenna RTK |
| Positioning Accuracy | Centimeter-level | Centimeter-level |
| Heading Output | ❌ Not available | ✅ Available |
| Typical Heading Accuracy | N/A | ~0.25°–0.5° (depends on antenna spacing) |
| Best For | Mapping, static surveying | Agriculture, drones, autonomous vehicles |
| Installation | Simple | Requires fixed antenna spacing (≥0.5m recommended) |
How They Work
Single-Antenna RTK: Only calculates position coordinates (latitude/longitude). It knows where it is, but not which direction it’s facing.
Dual-Antenna RTK: Uses the phase difference between two antennas to calculate both position and heading. This gives you real-time direction data, even when the vehicle isn’t moving.
Who Should Choose Single-Antenna RTK?
Choose this if:
You only need location data, not direction.
You’re doing static surveying, drone mapping, or asset tracking.
You want a compact, low-cost setup.
Who Should Choose Dual-Antenna RTK?
Choose this if:
You need to control direction, such as keeping a tractor moving straight.
You’re working on agricultural autosteer, drones, or autonomous robots.
You want a heading solution that isn’t affected by magnetic interference.
Our Recommendation
For applications requiring both positioning and heading, the DaLang AK978H Dual-Antenna RTK Receiver is the most practical choice. It provides stable, reliable data in one compact unit, supporting all major satellite constellations and working as both base and rover.
👉 View DaLang AK978H Details to see if it fits your project.https://gnssrtkmall.com/products/ak978h-rtk-receiver-gmss-high-precision-dual-antenna-directional-agricultural-automatic-instrument-radio-gps-antenna-module-radio
👉 Ask Before Buying if you’re unsure which option works best for you.https://gnssrtkmall.com/pages/contact-us
