When I first started working with C Series Wireless Bridges three years ago, I spent dozens of late nights on calls with small business owners, farm managers, and municipal IT teams who’d all asked the same question: “What’s the actual throughput I can expect from this thing?” C Series Wireless Bridge
Too many wireless equipment guides out there treat throughput like a magic number pulled out of thin air—they’ll list a headline 1.2 Gbps or 5 Gbps without a single note about how weather, distance, or interference will turn that number into something unrecognizable. As a supplier of C Series Wireless Bridges, my job isn’t just to ship boxes; it’s to cut through the hype and give people real answers they can actually use. That’s what this post is for.
Let’s start with the basics: throughput, for anyone new to the space, isn’t the same as the theoretical “maximum data rate” listed on a spec sheet. Theoretical rate is what the radio can push if every single condition is perfect—no trees blocking the line of sight, no other Wi-Fi networks around, no rain or fog to scatter signals. Throughput is what you actually get when you plug in a laptop and run a speed test. For C Series bridges, that gap between theory and real-world performance is smaller than most competing products, but it’s still there.
Now, when someone says “C Series,” they’re usually referring to three main models we carry: the C150, C300, and C500. Each is built for a different use case, so their throughput numbers shift with their intended job. Let’s break this down by model, because lumping them all together would do every user a disservice.
The C150 is our entry-level model, made for short-range links under 2 kilometers (just over 1 mile)—think connecting two barns on a small farm, or two office wings in a warehouse campus. The theoretical rate for the C150 is 450 Mbps, but in real, ideal conditions (clear line of sight, no interference) most users see a steady 350-400 Mbps of TCP throughput. Add in common real-world factors, and that drops a bit: if the link is 1.5 km with a small line-of-sight obstruction, or if there’s a handful of 2.4 GHz Wi-Fi networks operating in the area, you’re looking at 220-280 Mbps. For what it’s worth, that’s more than enough for 10+ 4K security cameras, half a dozen VoIP phones, and a cloud-based POS system running at the same time—something I hear from every farm that picks up a C150. They used to run old Wi-Fi extenders that dropped video feeds when anyone made a call, and now they say the cameras never glitch.
Next up is the C300, our middle workhorse for mid-range links between 2 and 10 kilometers. This is the model we sell most of, and for good reason—hit a sweet spot between price and range. The theoretical rate here is 1.2 Gbps, and in perfect conditions, we regularly see 950-1100 Mbps of throughput. Most of our clients installing C300s for municipal sites, small to medium solar farms, or remote retail locations will be operating at 5-8 km, and in those cases, throughput lands at 550-800 Mbps. The biggest variable here isn’t distance, usually—it’s interference. If you’re setting up a link near a busy 5 GHz Wi-Fi band, or near a microwave tower, we configure the C300 to use dynamic frequency selection (DFS) to swap to a clear channel, which keeps throughput from tanking. Last year, we had a client who set up two C300s 7 km apart across a lake, and even during peak usage, they averaged 680 Mbps—more than enough to run their remote site’s point-of-sale, access control, and 20 high-res cameras without any lag.
Then there’s the C500, our high-end model for long-range links between 10 and 25 kilometers. This is the heavy lifter, made for connecting campus networks across miles, or linking remote mining sites to their main office. Theoretical rate here is 2.4 Gbps, and in ideal, unobstructed links under 15 km, we see 1.8-2.2 Gbps of throughput. For longer links, say 20-25 km, throughput drops to 800-1200 Mbps. The key here is that even at 25 km, that’s still enough to run a full office network across a remote location. We had a construction company use a pair of C500s to connect their main headquarters to a temporary site 22 km away, and they were able to run cloud-based design software, video conferencing, and all their daily data transfers without any noticeable slowdown—something they couldn’t do with older, lower-speed bridges they’d tried before.
But here’s the thing no spec sheet will tell you: throughput isn’t just about the bridge. It’s about what’s at both ends. If you plug a C300 into an old router that only does 100 Mbps wired, you’re never going to get more than 100 Mbps through the bridge, no matter how good the bridge itself is. We make a point to advise every customer to match the wired ports at each end of the link to the bridge’s capability—so a C300 needs at least a gigabit port at both ends, and a C500 needs a 10-gig port. That’s a small detail, but it’s one that stops people from being disappointed when their throughput isn’t as high as they expected.
Weather is another big factor that most people don’t account for. Rain fade, for example, can reduce throughput, but it’s only really an issue for links over 10 km operating in heavy rain. For most C Series installations, even in a downpour, throughput only drops by 10-15%—hardly noticeable for most use cases. We’ve tested C Series bridges in hurricane-force winds on coastlines, and even when the signal strength drops, the bridge’s adaptive modulation automatically adjusts to keep the link up, just at a slightly lower throughput. Compare that to some competing brands, which will drop the entire link in heavy rain, and you start to see why our clients keep coming back.
Interference is probably the most common culprit for low throughput, and it’s something we help customers fix during the planning phase. The C Series operates on 5 GHz and 6 GHz bands, which are less crowded than the old 2.4 GHz band, but we still run a free site survey for every customer before they buy. We use tools to scan for other Wi-Fi networks, microwave signals, and even radar that might be operating on the same frequency. If there’s interference, we adjust the channel width—narrower channels have less interference, wider channels have higher throughput—and set up the bridge’s MIMO (multiple input, multiple output) technology to use the best available antennas. That’s a free service we offer as a supplier, and it’s saved more customers from installing a bridge that doesn’t perform as expected than anything else.
I get calls every week from people who’ve bought cheap, off-brand wireless bridges online, only to end up with throughput that’s 50% lower than advertised. They’ll tell me they bought a bridge that said it could do 1 Gbps, but they’re only getting 100 Mbps across a 3 km link. The difference between those cheap bridges and C Series is in the hardware and firmware. C Series bridges use industrial-grade chipsets that are built to handle consistent throughput over long distances, and our firmware is updated regularly to fix interference issues, improve modulation, and extend link range. We test every bridge before it leaves our warehouse, and we stand behind our performance numbers—if a customer isn’t getting the throughput they were promised after proper installation, we’ll send a technician out to fix it, no extra charge.
Let’s talk about real-world use cases to put this in perspective. A small farm with a C150: they have 12 security cameras, 4 VoIP phones, and a remote access point for their workers. Total throughput needed is around 50 Mbps, but the C150 gives them 300 Mbps, so they have plenty of headroom for future expansion. A municipal office connecting two government buildings 7 km apart with C300s: they need to transfer large file backups, run video conferencing for meetings, and connect 50 workstations. They need about 200 Mbps, and the C300 gives them 600 Mbps, so even during peak times, there’s no slowdown. A logistics company connecting their warehouse to a distribution center 18 km away with C500s: they need to transfer daily shipment data, run inventory scanners, and support 10 remote forklift cameras. They need 400 Mbps, and the C500 gives them 1 Gbps, so they can add more cameras or expand operations without upgrading their bridge.
One common question I get is: can I use C Series bridges for point-to-multipoint links, not just point-to-point? The short answer is yes, but throughput is split between the connected sites. For example, if you have one C300 as a root and three remote C300s, the total throughput available is the same as a single point-to-point C300—so if the root has 800 Mbps, each remote site will get a share of that. That’s a key point for anyone looking to connect multiple sites, because throughput scales differently than point-to-point.
I also want to address a myth I hear all the time: wireless bridges can’t match wired Ethernet speeds. With C Series, that’s no longer true. We’ve had clients connect two sites 10 km apart and get throughput that’s within 5% of a dedicated fiber link—for a fraction of the cost, and in a fraction of the time it takes to dig trenches and lay fiber. That’s been a game-changer for rural businesses that don’t have access to fiber options.
At the end of the day, the throughput of a C Series Wireless Bridge isn’t a single number—it’s a range that depends on the model, distance, line of sight, interference, and the devices you’re connecting. What matters most is picking the right model for your use case, planning the site to avoid interference, and using the right equipment at each end of the link. As a supplier, that’s what I help customers do—sell them the right bridge, help them plan the installation, and support them after they’re up and running.
If you’re looking to connect two sites, upgrade your wireless network, or just get real answers about C Series throughput, don’t hesitate to reach out for a consultation. We offer free site surveys, personalized performance estimates, and flexible pricing for every use case.
Outdoor WiFi AP References
C Series Wireless Bridge Technical Datasheets, 2024
Industrial Wireless Broadband Performance Testing Report, 2023
Point-to-Point Wireless Link Throughput Best Practices, 2024
Weather Impact on Long-Range Wireless Networks, 2023
Jinan Bodaxun Communication Technology Co., Ltd.
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