[aprssig] Digipeater setup for Dayton

[Randy Love]

hear is the key word.
it might not ever tx msgs back tho because of channel congestion.

we plan on having something up, and might do dual, with a 70cm alternate
channel and the aprs primary 144.39

we would beacon an obj with freq and info abt the alt node, and probably put
a bounding box limit on it.

Randy
WF5X

On Mon, May 16, 2011 at 4:45 PM, Bob Bruninga <bruninga at usna.edu> wrote:

> Why not put the Igate on 144.39 where everyone is?
>
> It will hear those that are close, and that is the point.
>
>
>
> Bob, WB4APR
>
>
>
> *From:* aprssig-bounces at tapr.org [mailto:aprssig-bounces at tapr.org] *On
> Behalf Of *Randy Love
> *Sent:* Monday, May 16, 2011 3:18 PM
> *To:* TAPR APRS Mailing List
> *Subject:* Re: [aprssig] Digipeater setup for Dayton
>
>
>
> Hi, Bob.
>
> I'm helping with an indoor vendor this year and am considering setting up
> an igate at the booth on a 70cm freq. Do you think such an indoor 70cm igate
> would be useful?
>
> 73,
> Randy
> WF5X
>
> On Mon, May 16, 2011 at 10:28 AM, Bob Bruninga <bruninga at usna.edu> wrote:
>
> > [does] anyone set up a digipeater at Dayton,
> > or do we rely on the local digi's?
>
> Proper operation of an event like Dayton would suggest that putting up a
> digipeater would be the worst thing to do.  With over 300+ mobiles and
> portables beaconing away all in simplex range of each other, a digipeater
> would do nothing but drastically reduce the reliability of the channel by
> half or more.
>
> The proper way to handle a ham radio event with a massive influx of APRS
> operations is to:
>
> 1) Have no digi at the focal point (Hamvention) (all signals are direct)
>
> 2) Have all digis going out 20 miles in all directions be ONE-HOP DIGIS
> ONLY.  That is, they only respond to WIDE1-1 or WIDE2-2 and nothing else.
> They digipeat once and do callsign substitution so the packet goes no
> farther.
>
> 3) Strategic IGates are placed right at Hamvention so they hear everything
> in simplex range.
>
> 4) Additional IGates are configured so that every surrounding digi going
> out
> 20 miles has an IGate to hear the one-hop packets.
>
> 5) Doing all the above, then the hundreds of APRS mobiles and portables do
> not have to change anything.  They just drive into town with their normal
> WIDE1-1,WIDE2-1 settings.
>
> No matter where you are, you will hear all your surrounding stations, and
> that is the best APRS can do under those conditions.
>
> Bob, WB4APR
>
>
>
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