12 minute video from 2018 - ics vs radio channels - repeaters vs
direct vs tones - etc
https://youtu.be/_374pmZdvrA
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lets see if we can do a 6 line explainer on radios
1. a radio runs off a battery - radio waves come out of the antenna -
push to talk - let go to listen - volume knob turns the speaker up and
down - radio works best when held upright - speak slowly and clearly -
think before you transmit - dont talk over other people
2. radio waves travel in straight lines - radio waves cannot go thru
mountains and hills
3. when radio signals are blocked by hills or mountains - use a
repeater to extend the range
4. 2 or more radios operating close to each other can cause feedback /
loud squeals
5. ICS is based on span of control - 1 person can control 5 people -
radio channels can mirror this ICS principle - in reality that never
happens - the basic radio channel concept for wildfires is - the IC
talks to his division chiefs on the command repeater channel - the
division chiefs talk to their underlings on the tac channels (that
usually dont have repeaters - no matter how badly they need them) -
air to ground comms are on a special channel - air to air comms are on
special channels
6. most agencies have a set number of repeaters on their lone dispatch
channel - any other radio infrastructure is supplied ad-hoc -
therefore the vast majority of tactical comms occur on direct channels
(since direct channels dont use repeaters - and there are no repeaters
- so no repeaters are used - lol - like alice in wonderland - have a
repeater - i dont see any repeater - thats becuase there isnt any -
lol
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