In article , Jack Twilley
writes
"Roger" == Roger Barker writes:

Jack Can you explain this behavior? I'm pretty sure the mobile
Jack station doesn't have a WIDE alias.

Jack KB5WIA*WIDE2-1APRS:$GPGLL,3759.519,N,12218.458,W,232104,A*3A
Jack KB5WIA*WIDE2APRS:$GPGLL,3759.519,N,12218.458,W,2 32104,A*3A

Roger KB5WIA has sent a frame, presumably -
Roger KB5WIAAPRS,WIDE2-2:Etc...
Roger and it has been digipeated by two WIDEn-N digis.

That would make sense except for the asterisks.

Roger The only slightly unusual thing about it is that most
Roger implementations of WIDEn-N, including Kantronics, will set the
Roger 'H' bit when the SSID is decremented to zero. With an
Roger AEA/Timewave TNC, which is what you appear to be using, the
Roger frame from the final WIDEn-N would be monitored as -

Roger KB5WIA*WIDE2*APRS:$GPGLL,3759.519,N,12218.458,W, 232104,A*3A
Roger (the difference is the '*' after the WIDE2)

None of the ~180k packets I have have two asterisks.

Sorry, typo. For a frame header decoded by an AEA/Timewave TNC, it
should of course have been -
KB5WIAWIDE2*APRS:$GPGLL,3759.519,N,12218.458,W,2 32104,A*3A

The main point being, that, as I said, most WIDEn-N digis set the 'H'
bit when the SSID is decremented to zero.

--
Roger Barker, G4IDE -
For UI-View go to - http://www.UI-View.com
For WinPack go to - http://www.peaksys.co.uk

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"Roger" =3D=3D Roger Barker writes:

[... confusion and typos ...]

Jack None of the ~180k packets I have have two asterisks.

Roger Sorry, typo. For a frame header decoded by an AEA/Timewave TNC,
Roger it should of course have been -
Roger KB5WIAWIDE2*APRS:$GPGLL,3759.519,N,12218.458,W,2 32104,A*3A

Right, but that's not what I saw, which is why I asked. If I had seen
that, I would have understood it to be what you explained.

Roger The main point being, that, as I said, most WIDEn-N digis set
Roger the 'H' bit when the SSID is decremented to zero.

I need to reread the AX25 spec until I understand all of the bits.

Jack.
=2D --=20
Jack Twilley
jmt at twilley dot org
http colon slash slash www dot twilley dot org slash tilde jmt slash
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"Roger" =3D=3D Roger Barker writes:

[... confusion and typos ...]

Jack None of the ~180k packets I have have two asterisks.

Roger Sorry, typo. For a frame header decoded by an AEA/Timewave TNC,
Roger it should of course have been -
Roger KB5WIAWIDE2*APRS:$GPGLL,3759.519,N,12218.458,W,2 32104,A*3A

Right, but that's not what I saw, which is why I asked. If I had seen
that, I would have understood it to be what you explained.

Roger The main point being, that, as I said, most WIDEn-N digis set
Roger the 'H' bit when the SSID is decremented to zero.

I need to reread the AX25 spec until I understand all of the bits.

Jack.
=2D --=20
Jack Twilley
jmt at twilley dot org
http colon slash slash www dot twilley dot org slash tilde jmt slash
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