Multi-GNSS Tracking
Tracks GPS L1 C/A and L2C, GLONASS L1OF and L2OF, Galileo E1B/C, and BeiDou B1I and B2I signals through a 184-channel parallel tracking receiver, holding a stable fix across multiple constellations at once.
GPS / GNSS NTP TIME SERVER
PreciseSync-SMC-300
A Stratum 1 GNSS-referenced NTP time server built to keep every clock on your network, and every record it produces, traceable to one reliable source. Sertel configures each unit to the site it is going into, so it arrives ready for the signal type, protocol and environment it will run in.
Engineered by Sertel Electronics
Field-proven, rack-ready design
Backed by in-house application engineering
Key Features
Built for Mission-Critical Time Synchronization
Everything needed to synchronize substations, data centers, telecom networks and control systems from a single 19 inch rack unit.
30 ns Accuracy
Precision timestamps backed by a high-stability OCXO oscillator as standard, with an optional Rubidium oscillator for microsecond-level holdover when satellite signal is temporarily lost.
NTP / SNTP Stratum 1
Stratum 1 NTP and SNTP time distribution with multicast and broadcast support, serving large client populations across a LAN or WAN without depending on an external time reference.
IRIG-B & 1PPS Outputs
AM [B125] and TTL [PWM] IRIG-B, 1PPS, DCF77, configurable pulse outputs (PPM/PPS/PPD/PPH) and ST fiber distribution for PPS, NTP and IRIG-B signals.
Hardened & Tested
Built and tested to the IEC 60068 series for heat, cold and vibration, the IEC 61000 series for EMC immunity including ESD, surge and radiated RF disturbance, and IEC 60255-5-0 dielectric strength testing.
Web-Based Configuration
HTTPS/SSL browser-based configuration through the Sertel Time Management Suite, with SNMP v1, v2c and v3 monitoring, syslog alerting and ACL-based access control.
Live signal flow
From Orbit to Every System on the Network
A GNSS time packet is received, disciplined by a precision oscillator, then distributed as one shared time reference to the systems that depend on it.
- 01Receive
The T-GPA-014-S15 antenna tracks GPS, GLONASS, Galileo, BeiDou and NavIC-IRNSS across the L1, L2 and L5 bands through a 184-channel receiver, acquiring signal down to minus 148 dBm and tracking it down to minus 167 dBm.
- 02Discipline
The standard OCXO oscillator, or the optional Rubidium oscillator, locks to the incoming GNSS reference and smooths out satellite jitter, holding the internal clock steady through brief signal interruptions.
- 03Distribute
Disciplined time is pushed out as Stratum 1 NTP and SNTP over Ethernet, alongside 1PPS, IRIG-B, DCF77 and programmable pulse outputs, so every downstream device on the network reads the same time.
PreciseSync - SMC - 300
Stratum 1, OCXO/Rubidium
Local Time
--:--:--.---
Now syncing → Power Utilities
Power Utilities
IEC 60870-103/104 grid and substation integration
SyncingRailways & Metros
Signalling & SCADA
Automation
C&I process control
<30 nsGPS lock accuracy
<1 µs / 24 hHoldover accuracy (Rubidium option)
Stratum 1Time distribution, NTP / SNTP
Applications
Deployed Across Critical Environments
Explore where the PreciseSync-SMC-300 is deployed and the synchronization problem it solves.
Technical Specifications
Complete receiver, network, output and environmental specifications for the PreciseSync-SMC-300.
GPS Antenna (T-GPA-014-S15)
| Parameter | Specification |
|---|---|
| Model | T-GPA-014-S15 |
| Receiving Frequency | L1: 1575.42 MHz | L2: 1227 MHz | L5: 1176.45 MHz |
| Tracking Code | L-Band C/A code |
| Geodetic Reference | WGS-84 |
| Channels | 24-channel parallel |
| Type | Helical, axial ratio less than 4 dB |
| Supply / Gain / Noise | +5 V DC internal, greater than 40 dB gain, less than 0.5 dB noise figure |
| Operating Temperature | -40 °C to +85 °C |
| Connector / Mounting | BNC, fixed roof mount, IP67 |
| Dimensions | 93 mm diameter, 133 mm height |
Oscillator Options
| Parameter | Specification |
|---|---|
| Disciplined Oscillator | Available, confirm at order |
| Rubidium | Standard option, 0.1 PPB stability with 1 microsecond / 24-hour holdover accuracy |
| VCTCXO | Available, confirm at order |
| OCXO | Standard, high-precision 10 PPB oven-controlled oscillator |
GPS Receiver (PreciseSync-SMC-300)
| Parameter | Specification |
|---|---|
| Interface / Connector | TTL normal high, BNC |
| Output Rate | Once per second |
| Power Supply | 90 to 260 V AC/DC (Supply A and B) |
| Display | 2x16 / 2x20 LCD |
| GNSS Signals | GPS L1 C/A and L2C, GLONASS L1OF and L2OF, Galileo E1B/C, BeiDou B1I and B2I, NavIC-IRNSS |
| Receiver | 184-channel parallel tracking, L1, L2 and L5 |
| Sensitivity | -148 dBm acquisition, -167 dBm tracking |
| Physical Design | 1U rack mount for a 19 inch cabinet |
| Protocol | NMEA, Sertel format, Serial String ASCII |
FAQ
Frequently Asked Questions
Ready to Deploy Precision Time?
Talk to a Sertel engineer for a tailored configuration, datasheet and pricing for the PreciseSync-SMC-300.