Keep in mind that for every digipeater you put out there you HALVE the
amount of traffic the system can handle.
Not exact, but for example if it takes one second for each UI Packet you
can pass 60 packets in a minute, if you add a digipeater, It hears the
packet, and repeats it, now takes two seconds and you can only move 30
unique packets a minute. Add another digipeater that is overlapping a
large area of the original digipeater (your mobile), and you're now down
to 20 unique packets a minute (original transmission, the first
digipeater, the second digipeater = 3 seconds), etc. This is the
simple explanation not accounting for collisions, etc. If it's
really needed for coverage then add a digipeater, but consider using
just a fill in (WIDE1-1) only. If it's not going to add much to the
coverage you're just reducing the air time available, and increasing the
likely hood of collisions and lost packets.
For Temporary to fill in coverage in an area, most definitely a suitable
mobile use, but on all the time, you more likely just adding congestion
to the system as you drive around.
Lots of other parts to the digipeater discussions, but probably more
suited for another list.
Chuck Kimball n0nhj
Peter Dakota Summerhawk wrote:
Garett,
Why is running a mobile Digi frowned upon? We were thinking about
doing this for some of our storm chasing activities come here this
spring. Park a vehicle in one place and let the others digi through it
back to the nearest stationary digi. That way we can cover more ground.
If you can let me know why this is frowned upon that would be great.
Thanks
Peter Summerhawk-N0WRE
