[aprssig] Newbie APRS object question
Lynn W. Deffenbaugh (Mr)
ldeffenb at homeside.to
Fri May 22 12:22:36 EDT 2009
I will go on record as saying it's probably "bad" to have an IGate gate
objects from the Internet to RF. I would have serious trouble figuring
out just which objects to gate and as AI4PX pointed out, the pathing
and/or actual broadcast location might be centered on the object's
applicable area.
Remember, object IDs are not necessarily unique and anything coming from
APRS-IS can be spoofed, so even gating "objects owned by/originating
from" a specified callsign can have unexpected results.
Lynn (D) - KJ4ERJ - Finally clear on where you are and what you're
attempting!
Wes Johnston, AI4PX wrote:
> In general , yes sending this objects from an IGATE would not be
> desireable. I wouldn't go so far as to say bad, but..... you have no
> control of the path the igate uses, so your packet would cover an area
> wider that you expect / want / need. Also, more than one igate might
> send your packet and lastly, the igate would encapsulate your packet
> inside it's own and make the original packet longer on the air.
>
> Wes
>
> On Fri, May 22, 2009 at 10:58, Fred Eckert <fredeckert at hotmail.com
> <mailto:fredeckert at hotmail.com>> wrote:
>
> Lynn (D) - KJ4ERJ wrote:
>
> > However, the IGate software will NOT do this for
> objects heard
> > on APRS-IS.
> >
>
> This answers my question. I have no RF capability at my base
> station just APRS-IS. I will try to contact a local digi owner and
> see if we can get the info out.
>
> One more thing: Would it be a bad thing for IGates to send out
> APRS-IS objects to local RF?
>
> Thanks to all for the replies.
>
> Fred KJ4LFJ
>
>
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> --
> Wes
> ---
> Where there's silence, there is no Hope.
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