FWA vs Fiber for Last Mile: When Wireless Wins

Fibre wins on capacity and latency; licensed fixed wireless wins on time to deliver. Where fibre already passes the building, there is no argument. Where it does not, the comparison is weeks of civil works against days of installation.

Fixed wireless needs line of sight and degrades in heavy rain at higher frequencies. Licensed spectrum, not unlicensed, is what makes it carrier-grade.

Brazil connectivity delivered by a neutral multicarrier operator. We map every route available at your address and come back with price, lead time and SLA.

Fixed wireless has a reputation problem in enterprise procurement: it reads as the cheap option, the thing you accept when you cannot have fiber. That is right often enough to be a useful prejudice and wrong often enough to be expensive.

What fiber does better

Capacity. Nothing else scales the same way past a gigabit.
Consistency. It does not care about weather or about someone building a tower in the path.
Latency, marginally, and predictably.

What wireless does better

Time. Days instead of months when fiber is not already at the building. On a project with a deadline this is often the whole argument.
Reach. There are addresses where no fiber will arrive on any commercially sensible timeline.
Genuine path diversity. A radio link shares no duct with the buried fiber, which is exactly what makes it a real second path rather than a second invoice.
No civil works. No permits, no pavement, no negotiation with the building about the riser.

The honest limitations

It needs line of sight, and line of sight can be lost to a new building. Heavy rain attenuates the higher frequency bands, which in parts of Brazil is a design input rather than a footnote — link budgets exist to handle it, but they have to be done properly. And capacity, while more than adequate for most business sites, is not fiber.

Three situations where wireless is the right answer

The deadline is before the fiber date. Wireless now, fiber later, and keep the radio as the backup. This is the most common good outcome.
You need a diverse second path and the only alternative fiber route shares infrastructure with the first.
A temporary site — a project office, a construction site, an event — where a multi-year fiber contract makes no sense.

What to ask a wireless provider

Whether the spectrum is licensed or unlicensed, and what that implies for interference. What the link budget assumes about rain, and what availability that produces. Where the tower is, who else is on it, and what happens if it loses power. And whether the backhaul from that tower is itself redundant — a diverse last mile behind a single backhaul is not diverse.

JCM Carrier is a neutral multicarrier operator in Brazil. Send us an address and we map every route that can actually deliver there, then come back with price, lead time and SLA — normally within two business hours, and with no CNPJ required to start.

Buying from Europe? Portugal ↔ Brazil

Dedicated IPLC and Ethernet private line between Portugal and Brazil, with presence in Lisbon, Madrid, Milan and Frankfurt through the operators in our group and partner networks. Contractual SLA, 24/7 NOC, 100 Mbps to 10 Gbps+. We accept payment in USD and EUR.

Group network: AS14840 (5–10 Tbps, 60 Hudson and Equinix Miami) and AS269311 (100 Gbps at IX.br Rio, at the Globenet cable landing station). Both on PeeringDB.

RFQ by email: [email protected] · NOC 24/7: [email protected]

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