[aprssig] APRS -- Chicago to Mackinac Island sailboat race
bill_borgstrom at yahoo.com
Sat Mar 31 06:56:23 CDT 2007
How do I logon and upload the packet.
AE5PL Lists <HamLists at ametx.com> wrote:
For a definitive explanation of the login line, go to http://www.aprs-is.net/valid.htm Note that www.aprs-is.net is the definitive location for APRS-IS formatting including q constructs, etc.
For user, be sure to use a -unique- callsign-SSID (N9TN-VS, for example) since you already use N9TN as your home station. Your validation code does not change.
The format for your packet can also be found at www.aprs-is.net Since you are, in essence, gating the packets to APRS-IS, I recommend using something like:
N9TN-9>APRS,qAR,N9TN-VS:@092345/4349.13N/08653.55WY306/015Cheap'n'Deep sec 6 Chicago Mac race
Note the qAR construct tells APRS-IS that this packet has been received by N9TN-VS from RF (or non-APRS-IS means) and is being passed into APRS-IS by N9TN-VS. This is assuming that you use the N9TN-VS user callsign-SSID combination on login. One of the purposes for the q construct is to show a "port of entry" which this does (it is also used for loop detection).
Hope this helps.
Pete Loveall AE5PL
pete at ae5pl.net
PS: APRServe no longer exists on APRS-IS. The majority of APRS-IS servers are running either javAPRSSrvr or aprsD. Just a clarification.
From: Bill Borgstrom
Posted At: Thursday, March 29, 2007 11:42 PM
Subject: Re: [aprssig] APRS -- Chicago to Mackinac Island sailboat race
I was able to download and compile validation.c
The following is my first attempt at a logon string. Is this correct?
================== logon string =================================
user N9TN pass 27029 vers "custom program"
The following is my attempt to form a TCP packet. Is this correct? I find the tricky part is the addressing.
================== raw packet ==================================
N9TN-9>TCPxx*,qAX,CORE-2:@092345/4349.13N/08653.55WY306/015Cheap'n'Deep sec 6 Chicago Mac race
Does the above raw packet need to be wrapped in a AX.25 packet? My guess is that it doesn't. How do I logon
and send this packet to APRServe?
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