Quick Answer
What is the Topcon HiPer SR?
See also: Topcon GNSS ERR-01 No Satellite Lock Fix
See also: Topcon GNSS ERR-03 No Corrections Fix
See also: Topcon HiPer HR GNSS Specs
The Topcon HiPer SR is a compact dual-frequency GNSS rover with integrated UHF radio and cellular modem, delivering 10mm horizontal RTK accuracy in a lightweight 792-gram body.
Topcon HiPer SR — Complete Specs, Manual & Guide
Category: GNSS Receiver | Brand: Topcon | Model: HiPer SR
The Topcon HiPer SR is Topcon's compact entry-level RTK GNSS rover, designed for construction layout, as-built surveys, and machine control setup. It combines GPS and GLONASS tracking with an integrated UHF radio in a sub-800-gram package, making it ideal for one-person operation with a TSC2 or FC-500 field controller.
Topcon HiPer SR Full Specifications
| RTK accuracy (horizontal) | 10mm + 1ppm |
| RTK accuracy (vertical) | 15mm + 1ppm |
| Static accuracy (horizontal) | 3mm + 0.5ppm |
| GNSS constellations | GPS L1/L2, GLONASS L1/L2 |
| Channels | 226 channels |
| Integrated radio | UHF 400-470 MHz, 1W |
| Communication | UHF, Bluetooth, RS-232 |
| IP rating | IP67 |
| Battery life | ~6 hours |
| Operating temperature | -40°C to +65°C |
| Weight | 792g (1.75 lbs) |
Accessories & Part Numbers
- FC-500 — Topcon handheld field controller
- TSC2 — Trimble-compatible field controller (via MAGNET)
- TRU6 — External UHF radio base station
- BT-81Q — Spare battery for HiPer SR
Error Codes Quick Reference
| ERR-01 | No satellite lock — move to open sky location |
| ERR-02 | Low satellite count — enable all GNSS constellations |
| ERR-03 | No RTK corrections — check base station or VRS network |
| ERR-05 | UHF radio fault — check antenna connection on radio port |
Frequently Asked Questions — Topcon HiPer SR
What is the Topcon HiPer SR RTK accuracy?
The HiPer SR achieves 10mm horizontal and 15mm vertical RTK accuracy under good observing conditions with proper baseline lengths. Static post-processing accuracy is 3mm + 0.5ppm.
Does the HiPer SR have a built-in cellular modem?
The base HiPer SR model includes UHF radio only. A cellular modem upgrade option (HiPer SR with cellular) is available for accessing VRS networks and internet-based RTK correction services such as Topcon NET.
What field software works with the Topcon HiPer SR?
The HiPer SR works with MAGNET Field on Topcon controllers (FC-500, FC-5000). It also outputs standard NMEA sentences over Bluetooth for third-party data collectors.
Is the Topcon HiPer SR still supported?
Yes — the HiPer SR remains supported for firmware updates and service. It uses the standard Topcon GNSS battery platform and is compatible with current MAGNET Field versions.
What is the difference between the HiPer SR and HiPer HR?
The HiPer HR is Topcon's advanced multi-constellation receiver supporting GPS, GLONASS, Galileo, and BeiDou with 476 channels. The HiPer SR tracks GPS and GLONASS only with 226 channels. The HR achieves higher reliability in obstructed environments due to its greater constellation support.
Related models: Topcon HiPer HR
Track your HiPer SR calibration dates, service history, and field verification records with Gradelog's Equipment Registry. Free to start at gradelog.com.
