we are not sure how well USA FD radios work inside highrise buildings nowadays
lets assume that a FD needs to use simplex radio channels in a highrise building the fireground channels would be Ch 1 -would be fire floor Ch 2 - would be floor above the fire Ch 3 would be other floors above the fire ch 4 would be floor below the fire ch 5 would be for evacs via stairs and elevators below the fire floor ch 6 would be IC in lobby to IC on fire floor ch 7 would be aircraft to ground - or - any exterior ops - maybe drone or adjacent bld or maybe ladder pipes etc ch 8 would be 'upper floors to command post at front door' - each channel - except for maybe ch 3 and ch 5 - would have 1 person assigned to relay messages from the various channels to the IC on the first floor - the general idea is that each 'floor' channel can talk on each floor with no trouble - but they would have trouble talking to the street and to other floors - in other words - it is basically assumed that radio waves can travel horizontally with no problem - but the radio waves have a big problem travelling vertically - unless they are outside of the building ch 8 would have 1 person at street level on side A - and other people on side A on ch 1,2,4 - people on ch 3 and ch 5 would have to move to Side A to have comms with other floors and with someone on the street all of this can be figured out well before any fire breaks out - it just takes one or two companies to go into some highrise and to test their radios easy peasy ambulance and police could use similar schemes - their radio waves work the same way as the FD radio waves -- You received this message because you are subscribed to the Google Groups "massfire" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/massfire/CAFXWwKbeMzk8K0i%2BwjBuwRx0%3DtefQu6Lt4u4PVwWbhTf5ar2TQ%40mail.gmail.com.
