What Is the ANT-GPS-OUT-TNC=? Cisco’s Ruggedized GPS Antenna for Precision Timing and Location Services



Overview of the ANT-GPS-OUT-TNC=

The ​​ANT-GPS-OUT-TNC=​​ is an ​​outdoor GPS antenna​​ from Cisco, designed to provide accurate timing and location data for network devices requiring synchronization, such as mobile base stations, IoT gateways, or distributed data centers. Built for harsh environments, it ensures reliable connectivity to GPS satellites, critical for applications like 5G time slicing, financial trading systems, or industrial automation.


Key Technical Specifications

  • ​Frequency​​: 1575.42 MHz (GPS L1 band) for global satellite coverage.
  • ​Gain​​: 26 dB typical, ensuring strong signal acquisition even in low-coverage areas.
  • ​Connector​​: TNC female, compatible with Cisco ASR 1000 Series routers and industrial IoT gateways.
  • ​Durability​​: IP67-rated enclosure, operational in ​​-40°F to 185°F (-40°C to 85°C)​​.
  • ​Cable​​: 5 meters of low-loss RG-174 coaxial cable with UV-resistant jacket.

Why This Antenna Matters for Network Synchronization

  • ​Sub-100 Nanosecond Accuracy​​: Enables precise ​​IEEE 1588 PTP (Precision Time Protocol)​​ synchronization for 5G networks and distributed systems.
  • ​Interference Resilience​​: Integrated bandpass filter blocks out-of-band signals from nearby radios or radar systems.
  • ​Plug-and-Play Integration​​: Pre-configured for Cisco Catalyst IR1100 and ASR routers, minimizing setup complexity.

Addressing Critical User Questions

Q: Can it be used with non-Cisco devices?

Yes, but optimal performance is guaranteed only with Cisco hardware due to ​​pre-tuned impedance matching​​.

Q: Does it require a clear line of sight to the sky?

Yes. Mounting on rooftops or poles with ​​360° visibility​​ is recommended to avoid obstructions like trees or buildings.

Q: What’s the maximum cable length supported?

Cisco advises ​​≤30 meters​​ using low-loss extensions (e.g., AIR-CAB003-D8-N=) to prevent signal degradation.

Q: Is surge protection necessary?

Mandatory in lightning-prone areas. Pair with Cisco ​​SPD-CABLE-TNC​​ surge suppressors for compliance.


Deployment Best Practices

  • ​5G Mobile Backhaul​​: Install on cell towers to synchronize small cells and macro radios.
  • ​Smart Grids​​: Ensure substation automation systems align timing data across distributed sensors.
  • ​Data Centers​​: Sync NTP servers for latency-sensitive applications like high-frequency trading.

For networks where timing accuracy impacts revenue or safety, the ​ANT-GPS-OUT-TNC= is available here​, offering Cisco-certified reliability and warranty coverage.


Final Perspective

In an era where a millisecond discrepancy can disrupt financial transactions or cripple industrial robots, the ANT-GPS-OUT-TNC= exemplifies infrastructure that’s as critical as the network itself. While third-party antennas might reduce costs, their lack of precision filtering and impedance tuning risks introducing silent errors. For enterprises where uptime and compliance are non-negotiable, this antenna isn’t just an accessory—it’s insurance.

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