CAM-M8 Series - u-blox M8 concurrent GNSS antenna modules

The u-blox CAM-M8 GNSS chip antenna modules offering high performance, high sensitivity and minimal acquisition times in a compact form factor.

The u-blox CAM-M8 chip antenna modules have the exceptional performance of the u-blox M8 multi-GNSS (GPS/QZSS, GLONASS and BeiDou) engine in an industry proven form factor. The CAM-M8 series delivers high sensitivity and minimal acquisition times in an ultra compact form factor.

Incorporating the CAM-M8 series modules into customer designs is simple and straightforward, thanks to the embedded GNSS antenna, low power consumption, small footprint of 9.6 x 14 x 1.95 mm, and sophisticated interference suppression that ensures maximum performance even in GNSS-hostile environments. The low power consumption and thin design allow end devices to be slimmer and smaller.

Key Features:

  • Concurrent reception of GPS/QZSS, GLONASS, BeiDou
  • Miniature size and weight with low power consumption
  • Embedded, omnidirectional and wideband antenna
  • Industry leading -167 dBm navigation sensitivity
  • Optional external antenna
  • Product variants to meet performance and cost requirements

For sales and technical development support from our in-house engineering team, please contact the Alpha Micro team.

Parameters Specifications
Receiver type

72-channel u-bloxM8 engine


BeiDou B1I


Nav. update rate

Single GNSS: up to 18 Hz

Concurrent GNSS: up to 10 Hz

Position accuracy 2.0 m CEP
Parameter CAM-M8Q CAM-M8C
Cold starts 26s 27s
Aided starts 2s 4s
Hot start 1s 1s
Parameter CAM-M8Q CAM-M8C
Tracking -167dBm -164dBm
Cold starts -148dBm -147dBm
Hot starts -156dBm -156dBm

AssistNow GNSS Online

AssistNow GNSS Offline (up to 35 days)

AssistNow Autonomous( GPS only, up to 6 days)

OMA SUPL & 3GPP compliant



Crystal (CAM-M8C)

RTC crystal

Built-In (CAM-M8Q)

Cost efficient solution with higher backup current (CAM-M8C)

Noise figure On-chip LNA and extra LNA for lowest noise figure
Anti jamming

Active CW detection and removal

Extra on-board SAW band pass filter

Memory On-board ROM
Odometer Travlled distance
Serial interfaces


1 SPI (Optional)

1 DDC (I²C compliant)

Digital I/O

Configurable timepulse

1 EXTINT input for Wakeup

Time pulse Configurable: 0.25 Hz to 10 MHz
Protocols NMEA, UBX binary, RTCM
Electrical data
Supply voltage

1.6 V to 3.6 V (CAM-M8C)

2.7 to 3.6 V (CAM-M8Q)

Digital I/O voltage level

1.65 V to 3.6 V (CAM-M8C)

2.7 V to 3.6V (CAM-M8Q)

Power consumption

29 mA @ 3 V (Continuous) (CAM-M8C)

7 mA @ 3V Power Save mode (1 Hz, GPS only))

Environmental data, quality & reliability
Operating temperature -40°C to +85°C
Storage temperature -40°C to +85°C
RoHS compliant (lead free)
Qualification according to ISO16750
Manufactured in ISO/TS 16949 certified production site
Uses u-blox M8 chips qualified according to AEC-Q100



31 pin LCC (Leadless Chip Carrier): 9.6 x 14.0 x 1.95 mm, 0.5 g

Part Number Description Pack Size
CAM-M8C-0 u-blox GNSS LCC Antenna Module, crystal, SAW, 9.6 x 14.0 mm Reel of 500
CAM-M8Q-0 u-blox GNSS LCC Antenna Module, TCXO, SAW, 9.6 x 14.0 mm
Reel of 500
Support Products
EVK-M8CCAM u-blox M8 GNSS Evaluation Kit, supports CAM-M8C Each
EVK-M8QCAM u-blox M8 GNSS Evaluation Kit, supports CAM-M8Q

The EVK-M8xCAM evaluation kit makes evaluating the high performance CAM-M8 GNSS antenna module simple. The built-in USB interface provides both power supply and high speed data transfer, and eliminates the need for an external power supply. The evaluation kit is compact, and their user-friendly interfaces and power supply make them ideally suited for use in laboratories, vehicles and outdoor locations. Furthermore, it can be used with a PDA or notebook PC, making it the perfect companion through all stages of design-in projects.


  • Easy to use
  • Extensive visualization and evaluation features
  • Supports AssistNow GNSS Online, Offline and Autonomous
  • All ports accessible outside
  • USB (V2.0 compatible) available for power supply and data transfer

Kit includes:

  • EVK-M8xCAM unit
  • USB cable
  • Active GPS / GLONASS / BeiDou antenna with 3 m cable
  • Extra battery RENATA CR2450
  • Quick Start reference card

The EVK-M8xCAM Installer includes u-center, which is an interactive tool for configuration, testing, visualization and data analysis of positioning chips and modules. u-center provides useful assistance during all phases of a system integration project.

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Last updated: 5 December 2016