The most unusual opportunity presented itself when Mikrotiks colleagues from Airpath Wirelessnet Solutions were contacted by The National Technology Centre for Ports, Waterways & Coasts of India.
They needed a link between two sites in the ocean: Tsunami alert and tide reading buoy stations.
Here’s the challenge: all high-speed wireless links require a good line of sight and a clear Fresnel zone for a good connection. Usually, you can achieve this with masts or towers. But what can you do if you want a connection in the middle of the ocean?
After ruling out 24, 60, and 80 GHz solutions, Airpath Wirelessnet turned to the good old 5 GHz connectivity.
“We chose the MikroTik NetMetal because it uses the extended upper part of the 5 GHz spectrum, leading to a much lower probability of interference, as well as high-gain TX Power.” Airpath Wirelessnet Solutions
In the end, they had to use an anchored boat and even the help of experienced divers, but a stable 100 Mbps connection is now in place. NetMetal – not even the vast ocean can stop it.
- Antenna connection: 2x RP-SMA on integrated semi-flex pigtails
- Antenna type: Patch array sector
- Materials: UV resistant ABS plastic, aluminium alloy, stainless steel
- Enviromental: IP55
- Temperature: -35°C to +60°C (-31°F to +140°F)
- Wind survival: 160 km/hour (100 miles/h)
Routerboard NetMETAL 5
- CPU: QCA9557 720 MHz network processor
- Memory: 128 MB DDR2 onboard memory
- Ethernet: 1x Gigabit port with Auto-MDI/X
- SFP: 1x SFP cage available
- Extras: Beeper, signal and status LEDs, voltage and temperature sensors
- Dimensions: 143 x 247 x 48 mm