On a little yacht yesterday … testing a Netcomm 4G100W-01 with a WiFi Antenna system (inside the boat, not yet installed) … We noticed a big slow down in the Speedtest.net test between testing with the WiFi Antenna system “connected” to the customer’s WiFi signal based off of Comcast Internet. The speed without the Netcomm router box in the middle was normal at around 20 Mb/s. Through the Netcomm router box WAN port (it has a switchable LAN/WAN jack – port on it) it was down to ~ 5 Mb/s.
This was just “staging” testing before the antennas get installed for both the 4G LTE Netcomm router and the new WiFi Hotspot Sharing System, which is an integrated WiFi Router and Marine Antenna, so this was inside the boat. The Netcomm was being connected to by WiFi to get either the 4G LTE signal or the WiFi Router signal to the test Macbook computer.
It didn’t dawn on me until the drive away from the boat that The WiFi Signal of the Netcomm box and the WiFi Signal of the Marine WiFi Antenna system were in immediate proximity to each other. This caused interference to each other. The RF signals and the WiFi protocol would have quite a battle being so close together. The Marine WiFi antenna system could easily overpower the Netcomm box’s WiFi Signal. If anyone has ever used a 2.4Ghz wireless keyboard and/or mouse close to a heavy upload/download traffic over a nearby WiFi Access Point / Router … you may have noticed the keyboard get sluggish or non-responsive. This gives you a good mental image of the problem the Netcomm router box suffered being only a few feet away from the BIG Marine WiFi Antenna.
I called the boat owner on my way driving away and told him what I suspected was the problem. He moved the WiFi Antenna up to his Fly Bridge and tested again, and a sure as shootin’ the problem was GONE.
So this turns out to be a good speed – throughput test of the WiFi System + Netcomm 4G100W-01 to 20 Mb/s download by 5 Mb/s upload. Some pictures I snapped of the yacht and house are on my Facebook:
73 de KA4UDX,
Alan Spicer – Alan Spicer Marine Telecom
+1 954 683 3426
communications @ marinetelecom.net