The high-performance PTP and NTP Grandmaster Clock in a small and compact form factor, provides robust and accurate time synchronisation and distribution across different devices. This second generation of the Open Timecard Mini ecosystem provides the full multi-band GNSS receiver with proven excellent performance, up to <5ns accuracy to UTC and 5 ppb holdover capability.
Why Open Timecard Mini 2.0 Module ?
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NTP/PTP time synchronisation
Engineered for diverse applications, this solution delivers precise timing synchronisation tailored to meet a wide range of needs, fully compliant with industry standards including IEEE 1588 (PTP), NTP, and SyncE.
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Multi-connectivities compatible
With the PCIe card, the Open Timecard Mini take complete advantage of all CM4 IO board, featuring 40 pins GPIO available, 2 USC-C ports, microHDMI port, eMMC boot port and USB-A port
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GNSS module for Raspberry Pi CM4/ CM5
Our GNSS/GPS modules feature a modular design that integrates with various CM4 and CM5 form factors through 200-pin connectors, ensuring a straightforward and efficient upgrading process.
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Compatible with additional network cards
Open Timecard Mini and its module provide different panel mounted U.Fl connectors, support multiple connection to various type of network cards, distributing frequency and PPS seamlessly.
What's inside the new Open Timecard Mini Module Collection?
Check out the Timecard Mini 2.0 Collection
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Precision Timing
Perfect for 4G/5G/LTE & Broadcast implementations
- Full multi-band GNSS receiver
- <5ns accuracy to UTC
- 1.5us/8hrs holdover
- State of the art Clock Gen with 4x Frequency outputs and 3x event time stampers
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Precision Location
High scalability for industrial and automotive applications
- Centimeter-level GNSS corrections globally
- Fast convergence times and reliable performance
- L-Band GNSS correction Data
Point Perfect compatible
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Precision Timing Lite
The perfect balance of cost and performance
- Unaffected by ionospheric errors
- Combines accurate timing with low power consumption
- Built-in GNSS security for highest robustness against malicious attacks
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Essential
Ideal for the home or test lab
- L1/L5 dual-band GNSS receiver
- Effective multi-path mitigation to boost urban accuracy
- Proven excellent performance, even with small antennas
- Matches Raspberry Pi CM4 form factor (or alternative clones)
Get your Open Timecard Mini Modules
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Vendor:timebeat.app
Open Timecard Mini - Precision Timing
Regular price £799.95Regular price -
Vendor:timebeat.app
Open Timecard Mini - Precision Location
Regular price £338.36Regular price£375.95-£37.59 Sale price £338.36 -
Vendor:timebeat.app
Open Timecard Mini - Precision Timing Lite
Regular price £285.95Regular price -
Vendor:timebeat.app
Open Timecard Mini - Essential
Regular price £75.95Regular price
Product Specification
General Features
1x ANT: u.fl IPEX-1 connector for connecting GNSS antenna input.
4x PPS OUT: u.fl IPEX-1 connectors
1x PPS IN : u.fl IPEX-1 connector
3 x EVENT IN/OUT : u.fl IPEX-1 connectors
200 Pin top: Direct connection for the Raspberry Pi CM4 footprint
Ublox LEA-F9T
GNSS Features
184-channel U-blox F9 engine:
- GPS L1C/A, L2C, L5 GLO L1OF GAL E1B/C, E5b, E5a BDS B1I, B1C, B2a QZSS L1C/A, L2C, L5 NavIC L5 SBAS L1C/A: WAAS, EGNOS, MSAS, GAGAN* Frequency Bands: L1 and L2
- Position Accuracy: 1.5 m CEP
- Timing Accuracy (1 PPS): <5ns (typical)
Time-to-First-Fix (TTFF):
- Cold Start: 26 seconds
- Reacquisition: 1 second
SiT5812 1.5us/24h mems OCXO
Frequency Stability: Down to ±1 ppb (parts per billion) over temperature
Frequency Tuning
- Supports fine frequency adjustments in steps as low as 1 ppt (parts per trillion)
- Digital control for precise frequency tuning and correction
Aging Stability
- ±0.1 ppb/day
Performance
Holdover and Retrace
- 1.5us/8hrs holdover
Temperature-Compensated MEMS
- MEMS technology with built-in temperature compensation for high accuracy across temperature ranges
- Stratum 3e Holdover: Supports holdover mode for telecom and network applications to meet Stratum 3e timing requirements
Renesas 8A34002E clock generator
Frequency and Output
• Output Frequency Range: 0.5 Hz to 1GHz (on request 1Hz default)
• Number of Outputs: Up to 7 programmable outputs (on request 1Hz default)
Frequency Tuning and Accuracy
• Tuning Resolution: below 1ps
General Features
1x ANT: u.fl IPEX-1 connector for connecting GNSS antenna input.
1x PPS OUT: u.fl IPEX-1 connectors
200 Pin top: Direct connection for the Raspberry Pi CM4 footprint
Highlights
- Multi-band receiver delivers centimeter-level accuracy in seconds
- Concurrent reception of GPS, GLONASS, Galileo, and BeiDou
- Multi-band L1/L5 RTK with fast convergence times and reliable performance
- Centimeter accuracy in a compact and energy-efficient module
- Easy integration of RTK for fast time-to-market
- Native support for PointPerfect simplifies integration
- Small form factor
Ublox NEO-F9P
84-channel u-blox F9 engine GPS L1C/A L5, GLO L1OF, GAL E1B/C E5a, BDS B1I B2a, QZSS L1C/A L1S L5, SBAS L1C/A NavIC L5
RTK Accuracy
- Nav. update rate RTK up to 20 Hz1
- Position accuracy RTK 0.01 m + 1 ppm CEP
- Convergence time2 RTK < 10 sec
Ublox NEO-D9S
Highlights:
- First mass-market L-band GNSS correction module
- Access to centimeter-level GNSS corrections globally
- Freedom to select GNSS correction data delivery channel
- High scalability for industrial and automotive applications
- Allows selection of desired L-band GNSS correction service
GNSS Feature
- Purpose: GNSS correction data receiver for high-precision applications
- Supported Correction Data: Receives GNSS correction data for augmentation services like Precise Point Positioning (PPP)
- Frequency Bands: L-band (1525 - 1559 MHz), commonly used for correction data transmission
- Channel Support: Dual-channel capability, allowing reception of multiple correction data streams
- PPP-RTK Compatibility: Enables Precise Point Positioning with Real-Time Kinematic (PPP-RTK) for cm-level accuracy
General Features
1x ANT: u.fl IPEX-1 connector for connecting GNSS antenna input.
1x PPS OUT: u.fl IPEX-1 connectors
200 Pin top: Direct connection for the Raspberry Pi CM4 footprint
GNSS Features
- Ublox NEO -F10T supports all four global satellite constellations, it is ideal for global deployments with single HW SKU
- Supports the L1/L5/E5a configuration
- Receiver type: GPS L1C/A, L5 GLO L1OF GAL E1B/C, E5a BDS B1C, B2a QZSS L1C/A, L5 NavIC L5 SBAS L1C/A: WAAS, EGNOS, L1Sb, GAGAN
- Timing accuracy: 10 ns (1-sigma, clear sky, dual-band mode)
- Time pulse jitter: ±8 ns
- Reacquisition: 1ns
- Cold starts Acquisition: 26s
General Features
1x ANT: u.fl IPEX-1 connector for connecting GNSS antenna input.
1x PPS OUT: u.fl IPEX-1 connectors
200 Pin top: Direct connection for the Raspberry Pi CM4 footprint
GNSS Features
- U-blox F10 dual-band receiver
- GPS / QZSS L1C/A (1575.42 MHz), L5 (1176.450 MHz) Galileo E1-B/C (1575.42 MHz), E5a (1176.450 MHz) BeiDou B1C (1575.42 MHz), B2a (1176.450 MHz) NavIC SPS-L5 (1176.450 MHz)
- Timing Accuracy : 30ns-60ns (typical)
- Time-to-First-Fix (TTFF):
- Cold Start: 28 seconds
- Reacquisition: 1 seconds
What you'll need to make it even better

