Starlink vs VSAT vs Fiber for Branch Offices and Sites in Kalimantan
No single connection is best for every location. Here is how to compare Starlink, VSAT, fiber, and cellular by application needs and site conditions, including when to run two links at once.
Offices in big cities can usually rely on fiber. The challenge is in district branch offices, mine sites, estates, and projects far from the network. There, the options are usually fiber (if it reaches), 4G/5G cellular, VSAT, or Starlink.
Key differences
- Fiber optics: the most stable, with the lowest latency. It requires a cable run to the site, which for remote sites can be expensive or unavailable.
- 4G/5G cellular: quick and cheap to set up when the signal is strong. At many sites the signal is unstable or absent.
- VSAT: geostationary satellite internet at about 36,000 km altitude. Coverage is wide, but that distance makes latency generally high, above half a second.
- Starlink: low-orbit satellites much closer to Earth, so latency is generally tens of milliseconds. Installation is relatively fast and needs only a clear view of the sky.
Why latency matters
Latency is the round-trip delay of data. For downloading files, high latency is tolerable. For video calls, remote desktop, apps that talk to the server often, and live CCTV, high latency shows up as broken audio, stuttering screens, and slow apps. That is why Mbps alone is not enough to compare connections.
Choose by need
- Branch office on a fiber route: fiber as the main link, Starlink or cellular as backup.
- Mine site or estate without fiber: Starlink as the main link, cellular as backup where there is signal.
- Sites long on VSAT: consider Starlink for latency-sensitive apps, keeping VSAT where contracts or systems depend on it.
- Temporary projects: Starlink or cellular, since they can move when the project ends.
Two links are safer than one
For operations that must not stop, install two connections with a router that moves traffic automatically (failover). If the main link drops, apps keep running over the backup. The same router can prioritize work apps over personal use.
What often matters beyond the connection
- Power: any connection dies if devices have no UPS or solar when the generator is off.
- Local network: a fast link is useless if WiFi reaches only one room.
- Lightning and grounding for antennas in open locations.
- Technical support: who comes to the site when something fails, and how fast.
Connection checklist
- Which applications must run, and are they latency-sensitive?
- How many users and devices connect at the same time?
- Is fiber or cellular signal available on site?
- Is an automatic backup link needed?
- What is the power source at the mounting point?
Sentra installs Starlink, site networks, and fiber for offices and sites in East Kalimantan. See the Starlink for Business service and infrastructure installation.
Tell us about the process. We'll help map out the most proportionate approach.
