igate set up / software - APRS Forum at eHam.net

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eHam.net Forum : APRS : igate set up / software

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igate set up / software	Reply
by N8PHL on July 24, 2008	Mail this to a friend!
i live in a area that has a big dead zone and i cant track my aprs sig. i would like to setup a igate in this area so as my sig can register on that web. can anyone tell me what software i need for this and any hardware other then a antenna and radio to recv the transmissions? thanks in advance for all the help.

RE: igate set up / software	Reply
by WW5AA on July 24, 2008	Mail this to a friend!
There are many good programs. I use UI-View32. Igate does not require anything other than the program and connecting to an APRS server, to put your own mobile on the map however you will need the radio and a TNC capable of the AX25 (Taper II) format. I dug out an old PK232MBX that I had not used in over 20 years and it works great. Also have APRS in the car, WW5AA-9 and the Airplane, WW5AA-7. Have fun! 73 de Lindy

RE: igate set up / software	Reply
by NA4IT on July 25, 2008	Mail this to a friend!
Just remember, Igates should only broadcast and receive the local area around you, say out to 30 miles. You can't do anything about how far you receive, but be sure to run your Igate transmit unproto only as far as the nearest digi to you. de NA4IT

RE: igate set up / software	Reply
by KA7O on August 8, 2008	Mail this to a friend!
Dead areas don't always call for an I-gate. What may well serve your local APRS infrastructure better is a digipeater in that 'dead zone'. One that can hear mobile stations around it and have enough gain/signal to get to another digi or existing I-gate. But, if that 'dead zone' is large enough and isolated enough, it may well call for an I-gate. Best to coordinate with the other users in your area. Too many I-gates in an area can make for a real mess - to the point of making the local system un-usable by anyone.

RE: igate set up / software	Reply
by AB0OO on January 13, 2009	Mail this to a friend!
I'm curious about this comment from KA7O: "Too many I-gates in an area can make for a real mess - to the point of making the local system un-usable by anyone. " In what way would I-Gate's hose up a local RF net, or the APRS-IS system? From what I can tell, APRS-IS filters dupes pretty efficiently and has bandwidth to spare. Are you talking about Internet-> RF traffic being transmitted from multiple, overlapping I-Gates at the same time? I can see that being something of an issue, but I think most IGate programs are set up to disable Internet->RF by default and require that it be turned on during configuration. That requirement implies that SOME thought would be put into it by the operator, who should look at proximity and footprint of existing IGates before causing more transmissions. I've never done the math, but how many packets per day pass through APRS-IS get tunneled from the internet back to RF? John

RE: igate set up / software	Reply
by KA7O on April 28, 2009	Mail this to a friend!
APRS is supposed to be a two way system. Sure, if all you have are local trackers sending posits out to I-gates, no matter how many I-gates, the anti-dup stuff at the server level should keep things neat. That's fine if it were a one way vehicle tracking system. APRS is a lot more than that. What happens when that station sends a message to someone and receives an ACK, or if someone outside the local area sends a message/query to that mobile station? Every I-gate that has heard that mobile station dutifully passes that traffic from the APRS-IS to RF. IF you've "too many" I-gates in any local area, that traffic appearing at the same time can and will often kill itself. Result? You've turned your local RF network into an 'outgoing' only system. It's encouraged that those gating traffic back to RF in an area coordinate their locations and output levels to avoid these on-the-air collisions.

RE: igate set up / software	Reply
by KD0FLE on May 9, 2009	Mail this to a friend!
Not trying to hijack your thread but I've got the same problem. If more mobiles were to turn on UIDIGI would that help?

RE: igate set up / software	Reply
by KA1MZY on May 10, 2009	Mail this to a friend!
>RE: igate set up / software >by KA7O on April 28, 2009 > >It's encouraged that those gating traffic back to RF in >an area coordinate their locations and output levels to >avoid these on-the-air collisions. I agree. Anyone wanting to do this should look at the big picture before, and make sure theres a need to Gate messages. Theres ALWAYS a need to gate stations to the Internet no matter how much coverage you got. No station will hear everyone. To the original poster, www.ka1mzy.com and click on the APRS link. There are some basic instructions on how to set UiView up which may help you. Any questions, email me or you can also check out the UiView Yahoo group. Theres also a simple forum on my site where you can post a question.

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