<html><body><span style="font-family:Verdana; color:#000000; font-size:10pt;"><div>Hi Eric,</div><div><br></div><div>This makes sense, and it clarifies some other observations I've made recently. Thank you very much for explaining it. This gives me some more things to explore.<br></div><div><br></div><div>Sincerely,</div><div>Mike</div><div>KB3IXO</div><div><br></div>
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-------- Original Message --------<br>
Subject: Re: [aprssig] radio aprs vs internet aprs<br>
From: Eric Lorenz K9LGE <<a href="mailto:k9lge@emlorenz.com">k9lge@emlorenz.com</a>><br>
Date: Tue, March 20, 2012 9:35 am<br>
To: TAPR APRS Mailing List <<a href="mailto:aprssig@tapr.org">aprssig@tapr.org</a>><br>
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<div>Hi Mike,</div> <div>No problem...when you use APRSDroid, you are connected to what is called APRS-IS. Is it basically as you describe ...a set of APRS nodes connected over the internet. By default, APRS-IS is separate from the RF side of APRS. There are stations that may choose to gate -IS traffic over to local RF (usually a limited stream- when users are passing within a certain radius of a station, so locals can see all traffic). Usually it is more the other way around...where the RF side is getting gated to IS. You will find here a great...'diversity' of opinion on the merits of mixing RF and IS APRS traffic. Personally, under controlled guidelines, I think it is beneficial to do so. But I am only one opinion here. :-). So that is why you don't by default see your traffic come up on local RF...you only will if there is someone reverse-gating your traffic to RF.</div> <div>Eric K9LGE</div> <div class="gmail_quote">On Mar 20, 2012 8:24 AM, "Mike Goldweber" <<a target="_blank" href="mailto:mike@mikegoldweber.name">mike@mikegoldweber.name</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <div><span style="font-size:10pt;font-family:Verdana"><div>Hi Everyone,</div><div><br></div><div>On Saturday volunteered at a 5K race to help with the communications support. While I was sitting in my car waiting for the race to begin, I thought it might be fun to turn on the APRSDroid app to see if any of the other volunteers would appear on my display. Several did, which was exciting (bear with me, I'm new to all aspects of digital radio). So, I decided to go a step further and I attempted to send a message through the application. Apparently the message did and did not get through.</div> <div><br></div><div>The next day I ran into the guy who organized and ran the communications. He told me that he got the message when he linked his system to the internet, but during the race he comm's trailer was not linked to the internet, which is why he did not receive my message immediately.</div> <div><br></div><div>So I'm a little confused. I can imagine a pure internet set of links (and displayed nodes), and I can imagine a set of pure radio linked nodes. I am a little confused about what seems to be a partial mix of internet or radio nodes. Could someone please explain the mechanics of this to me?</div> <div><br></div><div>Thanks,</div><div>Mike Goldweber</div><div>KB3IXO<br></div></span></div> <br>_______________________________________________<br> aprssig mailing list<br> <a target="_blank" href="mailto:aprssig@tapr.org">aprssig@tapr.org</a><br> <a href="https://www.tapr.org/cgi-bin/mailman/listinfo/aprssig" target="_blank">https://www.tapr.org/cgi-bin/mailman/listinfo/aprssig</a><br> <br></blockquote></div> <hr>_______________________________________________<br>
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