The CHCNAV i73+ is a compact GNSS receiver for base and rover applications, supporting topographic surveying, agricultural field mapping and pipeline surveys.
Its 1408-channel GNSS module tracks multiple satellite constellations, providing reliable positioning with stated RTK accuracy of 0.8 cm horizontally and 1.5 cm vertically under specified conditions.
Automatic pole tilt compensation supports measurements at angles up to 60° with stated accuracy of 3 cm, reducing the need to keep the pole vertical.
A built-in 410–470 MHz UHF transmit-and-receive modem supports flexible base and rover operation, while Bluetooth, Wi-Fi and NFC simplify connectivity.
Weighing just 0.73 kg, its compact magnesium alloy design reduces operator fatigue. Battery life of up to 24 hours in RTK rover mode supports extended fieldwork.
IP67 protection, resistance to a 2-metre drop and operating temperatures from −40°C to +65°C help the i73+ withstand demanding survey conditions.
Size Guide
| Size | US | Bust | Waist | Low Hip |
|---|---|---|---|---|
| XS | 2 | 32 | 24 - 25 | 33 - 34 |
| S | 4 | 34 - 35 | 26 - 27 | 35 - 26 |
| M | 6 | 36 - 37 | 28 - 29 | 38 - 40 |
| L | 8 | 38 - 29 | 30 - 31 | 42 - 44 |
| XL | 10 | 40 - 41 | 32 - 33 | 45 - 47 |
| XXL | 12 | 42 - 43 | 34 - 35 | 48 - 50 |
Measuring Tips
Measure around the fullest part of your bust.
Measure around the narrowest part of your torso.
With your feet together measure around the fullest part of your hips/rear.
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