Re: RF-PATH and IS(WIDE) ???
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Lynn Deffenbaugh
¿ªÔÆÌåÓýThe first one (RF-Path) was a packet copied over an RF channel, probably the one you named TM-D700 based on the upper left corner.?? According to the expanded me u path that you so graciously provided: This says that SV4FHR transmitted the packet with a ToCall of 3Y3V33, likely part of Mic-E formatted coordinates.?? The packet was digipeated by SZ4SRM-11 and SV3ISZ-3 which together consumed what was possibly an original WIDE2-2 path alias, but that last part is pure supposition.?? It may have originally been a WIDE1-1 which was replaced by SZ4SRM-11 and a WIDE2-1 that was consumed by SV3ISZ-3.?? There is no way to tell for certain. The second one (IS(WIDE2-2)) was copied from your APRS-IS connection.?? Matching up a raw packet from aprs.fi, it is likely the following: 2024-09-26 11:02:52 EDT: SV4DCQ-9>SY3W48,SZ4SRM-11*,SV3ISZ-3*,WIDE1*,WIDE2-2,qAR,J41VAA:`24<l e>/]"4k}sakis Matching this up to the second expanded
menu path:
We see the packet components from left to
right listed from the top down.
SV4DCQ-9 originated the packet (the
FromCall)
SY3W48, the ToCall, is actually part of the packet's Mic-E formatted coordinates SZ4SRM-11* is the first digipeater that
copied the original packet simplex and repeated it
SV3ISZ-3* is another digipeater that
repeated the packet
WIDE1* is the consumed digipeater alias
likely specified by the originating station.
WIDE2-2 is the first unused path
component, also likely from the originating station.
And from the aprs.fi packet, the
qAR,J41VAA is the q-construct and IGate that received the packet,
probably from SV3ISZ-3, and gated it to the APRS-IS network.
But the strange thing to me is how there
are TWO digipeaters before the WIDE1??? There should only be one.?
But another raw packet from aprs.fi indicates that you have at
least one stealth digipeater in the area that is consuming WIDE1
aliases without inserting the digipeater callsign.
2024-09-26 11:15:01 EDT: SV4DCQ-9>SY3W48,WIDE1*,WIDE2-2,qAR,SZ4KRD:`24<l e>/]"4k}sakis This pair of packets is precisely why it
is impossible to do RF analysis from the APRS-IS network.?? There
are too many unknowns and too many inconsistently configured
digipeaters in the wild.
Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32 On 9/26/2024 2:00 PM, Demetre - SV1UY
(M0SUY) wrote:
Hi, Does anyone know the difference between RF-PATH and IS(WIDE)??? Please see attached pictures. |