Disaster Communications Improvement

https://gcn.com/articles/2019/11/26/high-low-tech-emergency-communications.aspx


Good morning all,

Per ...

Article tells of automatically linking cell - wi fi - sat communications for best connectivity.

Article omits governmental cutoffs of some commo for anti-terrorism program.

Stephanie; Please define, with some examples, of "modern developed cities".

I have a hunch Ben's cost analysis won't show savings. The accountants can show it but there still won't be cost savings. The systems have more to them than splicing wires.

Don't forget to load the semaphore flags and heliograph on tripod.

 

Nothing new in the concept. In fact I'm part of a developer team who develop similar system a while back, albeit we are developing it for different purpose.

 

There is no need to add repeater. Adding repeater just adding complexity into the system (which is bad). There is already layers of redundancy satellite, WiFi (most likely in mesh network), cellular, and radio. What I'm wondering is, why there isn't any WiMAX in the mix

 

That would require a whole a lot of vehicle that are parked solely for the purpose as being repeater rather than doing what they supposed to do (disaster relief). The best you can get with omnidirectional WiFi is around 100m even that in 802.11 draft-n protocol. Its much cost efficient to just use cellular (if available) with UHF or WiMAX as the next layer, and satellite as the last layer

 

Your welcome . Anyway the short range albeit high-bandwidth nature of WiFi is the main reason a similar system that my team was developing also use WiMAX from platoon level and above.