[aprssig] Re: The Ultimate New WIDEn-N Paradigm
Robert Bruninga
bruninga at usna.edu
Mon Feb 7 14:02:13 EST 2005
>>> Wes Johnston <aprs at kd4rdb.com> 2/7/05 1:42:00 PM >>>
>If we use UIDIGI set to WIDE2-2,WIDE2-1,WIDE3-2,WIDE3-1 ,
> we've used up all four slots. Fine, but what about support
>for RELAY? The hierarchy has always been that low stations
>respond to RELAY and higher stations respond to WIDE...
I think this will be the "great debate" for the next few weeks.
There are so many positives to this New n-N Paradigm (as
recently revised) that I am almost ready to make these
additional changes:
1) Eliminate WIDE completely. It is obsolete and generates too
many dupes when used.
2) Discourage RELAY. It also generates too many dupes.
3) Only QRP trackers (under 5 W) may use RELAY,WIDE2-2.
Here is how we can work WITHOUT RELAY:
1) Universal path for mobiles is WIDE2-2.
2) It will work everywhere and is the most efficient path.
3) In wilderness areas, WIDE3-3 and larger are possible
4) QRP trackers may still use RELAY,WID2-2
5) In "holes" here is what we do:
A) Recognize that a lot of the old "holes" were not really
RF holes, but were "weak areas" that beacuse of the
distance to a digipeater, the mobile was not heard beacuae
of all the QRM that the digi was also hearing. Since the
New n-N Paradigm will cut QRM by a factor as much as
3 to 5 in some areas, many of these "black holes" may
no longer be "holes"...
B) In fact, many of these home digis and black-hole RELAY
digis were not really "hole digis" but base-station "multipliers"
to allow a low power tracker to usurp the power of the
base station to be heard.
C) If in fact a local fill-in digi is needed, then give it the alias
of WIDE2-2 and RELAY. This way he will get at least one
hop in that weak area. And a low pwer tracker can be
forwarded (though I think they all need the separeate 144.99
alt-input as a much better solution.)
D) Only QRP trackers will be encouraged to use RELAY,WID2-2.
This is because most of them will never hit two RELAYS and
so the DUPE problem will not exist.
E) Discourage all mobiles from using RELAY,WIDE2-2 if they
are running more than 5 Watts.
As we turn off all the QRM, I'd like to hear some people
that used to think that RELAY,WIDE was their required path,
to experiment with running just WIDE2-2 (after their local
digi's implement New n-N so there is not so much QRM at
the digi..
Bob
Wb4APR
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