I read favela gangs use kites and flag semaphores to signal hq

>>59807832
kites and flag semaphore

if it isn't broke, don't fix it.

Not much differently, just add some sort of explosive/air horn for an audio warning.

>>59807842
The flag semaphore is a good idea,but kites takes at least a few minutes to get up.
>>59807850
Would probably attract a lot of attention.

>>59807869
Diversion is an essential part of evasion.

>>59807869
>kites takes at least a few minutes to get up.

true - perhaps tethered coloured balloons? - could be kept filled then just wound up/down?

>>59807832
second-hand brass instruments. not vuvuzelas, i'm thinking ex-army euphoniums and the like.

>>59807832
Fireworks

Did you not watch kung fu hustle?

Mesh Network Consisting of Solar powered ESP8266s

>>59807832
Why do they even stick to this primitive shit?
You could build a whole network of ism band data modems perfectly legally for a few thousand $.

>>59808272
>for a few thousand $
yeah, there's the problem