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[aprssig] Fill-in Digis

Ron Stordahl ron.stordahl at digikey.com
Fri Mar 24 17:11:05 UTC 2006


The Fill-in digi concept seems like a good one.  In view of this 
shouldn't the recommendations for an N=3 area be changed to 
"WIDE1-1,WIDE2-2" rather than "WIDE3-3".  And at the same time shouldn't 
the high digi's configured with the new paradigm also restrict WIDE3-3?  
If not then this opens the option "WIDE1-1,WIDE3-3" which violates the 
goal of N=3.

Ron Stordahl, N5IN

Curt, WE7U wrote:
> On Fri, 24 Mar 2006, Robert Bruninga wrote:
>
>   
>> The Fill-in digi attempts to better balance that
>> situation.  THink of the tier of out-lying fill-in
>> digis as just like a big voice repeater with remote
>> site receivers.
>>     
>
> That is _exactly_ how I think of it!
>
> That's pretty much how it works for my mobile.  With all the canyons
> and hills/mountains around, we need these fill-in digi's in order to
> provide better coverage for the mobiles/portables around here.
>
> Another option is to run high-power from the mobiles.  That can help
> the one individual to a point, but trashes everybody else on channel
> that _might_ have gotten in otherwise.  Unfortunately the gains by
> running high power are difficult to refute, so it takes a bunch of
> education to get those users to back down again.  I was one of them
> a few years back until I "saw the light".
>
>
>   
>> 2) But he hears the digi just fine at the same
>> distant location.
>>     
>
> The mobile can't always hear as well as it talks, due to vehicle
> electrical system noise, computer noise, etc.  I find that I can
> hear quite well if the engine is off, but not otherwise.  Perhaps
> its just my particular installation though and others have better
> luck while moving.  A sample of one is hard to do statistics on.
>
> --
> Curt, WE7U.   APRS Client Comparisons: http://www.eskimo.com/~archer
> "Lotto:    A tax on people who are bad at math." -- unknown
> "Windows:  Microsoft's tax on computer illiterates." -- WE7U
> "The world DOES revolve around me:  I picked the coordinate system!"
>
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