Field Test: Comparing RTK Performance Between Used GNSS Brands
If you’re considering buying a pre-owned GNSS receiver, one of the biggest questions is: which brand performs best in the field?
In this blog post, we share results from a live RTK field test using four popular used GNSS models:
- 🔹 Trimble R8 Model 3
- 🔸 Topcon Hiper V
- 🔹 Leica GS14
- 🔸 Emlid Reach RS2
🔍 Test Parameters
- Location: Suburban open-sky area with moderate tree cover
- Base Station: Local NTRIP caster
- Rover Protocol: NTRIP (RTCM 3.x)
- Mount: Tripod with tribrach (1.80 m height)
- Observation Time: 5 minutes per receiver per point
We measured 5 known points and compared:
- ✅ Time to FIX
- ✅ FIX stability
- ✅ Position deviation from known coordinates
- ✅ Ease of Bluetooth/Android connection
📊 Performance Comparison Table
| Receiver | Time to FIX | Fix Stability | Average Error (cm) | Bluetooth to Android |
|---|---|---|---|---|
| Trimble R8 Model 3 | 18 sec | ✔️ Excellent | ±1.8 cm | ✅ via Bluetooth SPP |
| Topcon Hiper V | 21 sec | ✔️ Very Stable | ±2.2 cm | ✅ via HiPerLink |
| Leica GS14 | 17 sec | ✔️ Excellent | ±1.5 cm | ✅ via Leica Bluetooth + Spider |
| Emlid Reach RS2 | 24 sec | ✔️ Good | ±2.5 cm | ✅ via Emlid Flow App |
🔧 Notes on Each Receiver
📡 Trimble R8 Model 3
Still a favorite for its rock-solid fix and rugged build. May need configuration tools for NTRIP setup but integrates well with Trimble Access or SurvCE.
📡 Topcon Hiper V
Very reliable in RTK work, even in tree-lined environments. Slightly longer fix time but maintains high stability once locked.
📡 Leica GS14
Fastest fix time and excellent accuracy. Requires Leica software for full configuration but integrates well with NTRIP and Android via Bluetooth.
📡 Emlid Reach RS2
Best value in modern entry-level receivers. Good accuracy and user-friendly interface, though fix time was slightly slower under partial canopy.
🏆 Which Is Best?
- 💰 Best Value: Emlid Reach RS2
- ⚡ Fastest FIX: Leica GS14
- 🎯 Most Accurate: Leica GS14 & Trimble R8
- 📱 Best Android Support: Emlid RS2 & Trimble R8
In the end, your best choice depends on your budget, software environment, and workflow.
📥 Want to Try One of These?
We offer tested, pre-owned GNSS receivers at a fraction of the original price — including the models above.
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Next up: Creating a Local Base Station with Your Used GNSS Receiver