Kolida K5 UFO

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Kolida K5 UFO, 965 Channels Gnss Receiver, Dual Battery, Adopt advanced UHF data link technology, proven low-elevation tracking technology and on-board multipath mitigation. Enhance radio work range.

Kolida K5 UFO GNSS Receiver

The advantage of lower price and better performance are depending on the reasonable and optimizing design to the subassemblies and components.K5 Ufo combines the extraordinary GNSS signal tracking and processing technology of high-end equipment and the economy of an entry-level equipment.Its superior flexibility and long endurance make it be a high-performance system to meet your diverse work needs on both simple and complex projects.

965 Channels

All Constellation Signal Tracking…

8 km

Built-in UHF Radio Working Range…

Dual Batteries 

Hot-swappable & Extra Power Source…

Kolida K58

965 canali, B3 support

With the latest developed 965 channels BEIDOU GNSS board inside, K5UFO maximizes the utility of BEIDOU (COMPASS).  signal, the data acquisition speed and GNSS signal stability are greatly improved.


Barrier-Free Measurement

In difficult environment you may lost connection with base station or VRS network. Don't be disappointed, you can choose from 3 creative work modes to continue surveying without interruption.

(Repeater/ Router/ Mobile Refenrence Station)

Long Range  Radio Link

SDL400 built-in radio can send signal as far as 7 km in urban area, 8 km in suburban. The maximum coverage is up to 200 sq.km, suitable to have multiple rovers work simultaneously.


SDL400 built-in radio features anti-interference capability, so K5UFO can work close to power plant, transformer substation, mobile signal tower and other interference source.

The Best in Town

 To improve the performance in city survey, R&D team upgraded the network module from 3G to 4G.  Under 4G mobile network, data transmission is faster and more stable. SUPER RTK is still compatible with 3G and 2G.

Practical Functions

See what others can't. K58/UFO employs Linux system, it helps surveyors to accomplish their missions easier, faster and more accurate by delivering exceptional quality and innovative features.

(The Tilt Survey function is optional, not included in default configuration)

Kolida K58 Android

New app.   New Productivity

 Windows CE data controller is too old technology? No problem. Simply download SurvX App on your smart phone or tablet.Enjoy the smooth operation of Android platform

Kolida K58 App

Post-processing Sw.   Free of Charge

KOLIDA GEO Office integrates static data processing & Kinematic data adjustment

K5 Ufo - EN

GNSS characteristics

965 GNSS channels

-GPS L1C/A, L1C, L2C, L2E, L5


-BeiDou B1, B2, B3

-Galileo GIOVE-A, GIOVE-B, E1, E5A, E5B


Initialization: time <10s, reliability >99.99%

Supported data formats:

CMR+, CMRx, RTCM 2.1, RTCM 2.3, RTCM 3.0, RTCM 3.1, RTCM 3.2

Output data formats:

NMEA 0183, PJK plane coordinates, Binary code, Trimble GSOF

Positioning Accuracy

Code differential GNSS positioning

Horizontal: ±0.25m+1ppm

Vertical: ±0.50m+1ppm

SBAS positioning accuracy: typically<5m 3DRMS


Horizontal: ±2.5mm+0.5ppm

Vertical: ±5mm+0.5ppm

Real-time kinematic (RTK)

Horizontal: ±8mm+1ppm

Vertical: ±15mm+1ppm

Network RTK

Horizontal: ±8mm+0.5ppm

Vertical: ±15mm+0.5ppm

RTK initialization time


Physical characteristics


17.5 x 17.5 x 8.3 cm


1.33 kg (2 batteries included)

User interface

Five Indicator lights

Two buttons

Linux System

I/O interface

5PIN LEMO external power port+RS232

7PIN external USB(OTG)+Ethernet

Bluetooth 2.1+EDR standard

Bluetooth 4.0 standard, support android, ios connection


8GB SSD internal storage

Support external USB storage (up to 32 GB)

Automatic cycle storage

Changeable record interval

Up to 50Hz raw data collection


RTK rover & base

RTK network rover: VRS, FKP, MAC

NTRIP, Direct IP


Environmental characteristics

Operating temperature: -45°to +60°C

Storage temperature: -55°to +85°C

Humidity: 100% condensing

IP67 waterproof, sealed against sand and dust

Drop: 2m pole drop on concrete

Power characteristics

Two Li-Ion batteries, 7.4 V, 3400 mAh

Battery life:>10h (static mode)>7h (internal UHF base mode)>8h (rover mode)

External DC power: 9-25 V

UHF Radio characteristics

Built-in radio

Frequency Range 410-470MHz

Protocol:TrimTalk450s, TrimMark3, SOUTH (KOLIDA)

1W/2W/3W switchable

typically working range 7-8km

“Barrier-Free” Measurement Technology: Repeater/ Router/ CSD mode

Cellular module characteristics


Compatible with 3G GPRS/EDGE


Configure and monitor receiver by web server via Wi-Fi or USB cable


Close range (shorter than 10cm) automatic pair between receiver and controller (need NFC chip in controller)


802.11 b/g standard

Hotspot: allow device to access in

data link: broadcast differential data

Voice Guide

intelligent voice technology provides status indication and operation guide

Chinese, English, Korean, Russian, Portuguese, Spanish, Turkish and user define

Standard system components

K5 UFO Receiver

Li-Ion battery

Charger and adapter

All-direction antenna

Tape measure

30 cm pole extension

7-pin to OTG cable

Engineering Star (Windows)

Engineering Star (Android)

1 year warranty

Optional system components

External Radio (410-470 MHz, 5-35W)

Battery Case SA-6003

Data collectors

-K6 (Windows)

-H6 - H5  (Android) -T17 (Windows)

Field software

-Field Genius (Windows)-SurvX(Android)

1-2 year warranty extension