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22828RE: [aprsisce] Dual iGate: Terrestrial and ISS

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  • Adam Mahnke
    May 7, 2013
      Honestly, just one less program running on the PC at any given time. (and one less for the YL to have to worry about starting back up if/when it crashes)

      I may go back to the double instances though, just for the messaging... didn't think about that part. 


      To: aprsisce@yahoogroups.com
      From: kj4erj@...
      Date: Tue, 7 May 2013 18:59:57 -0400
      Subject: Re: [aprsisce] Dual iGate: Terrestrial and ISS


      Just be aware that the current APRSISCE/32 doesn't keep track of WHICH port a station was "recently heard local" for gating messages from -IS to RF, just the fact that it WAS recently heard local.  So, if a message comes across the APRS-IS for a station that's on UHF, it will be transmitted on both UHF and VHF ports.

      And there is also no cross-port gating supported in the current incarnation, so messages won't cross between the UHF and VHF ports.

      Now, if you ran separate instances with an APRS-IS server between them, messages will only go out on the instance/port that heard the station recently local and UHF/VHF cross messages will gate to/from the APRS-IS and manage the cross-band activity properly there as well.

      So, what is it you're gaining by using a single dual-ported instance?

      Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32

      On 5/7/2013 4:55 PM, Adam Mahnke wrote:
      So, in follow up to this.

      We are experimenting with APRS96 on UHF in the Ithaca area. 

      I ran two separate instances of APRSIS32 for this to start with, but now I have a single instance running two radio ports.

      You may also notice
      as a stand alone UHF APRS96 Digi in the Ithaca area (same site as W2CXM-1) on a D700 with no APRSIS32 connection

      So far APRSIS32 seems to be behaving normally running both ports rather happily. It is a WIDE1-1 Digi, and a bidirectional IGate for both (not gating packets to RF, just messages) and we have N2PYI-4 gating IS traffic from our little 3 county area to RF on the UHF channel. It's an interesting experiment.

      I'm wondering if that is something similar to what Reed is attempting to do, a single instance and SSID running two different frequencies?


      To: aprsisce@yahoogroups.com
      From: steve@...
      Date: Mon, 29 Apr 2013 16:18:13 +0100
      Subject: RE: [aprsisce] Dual iGate: Terrestrial and ISS


      A good start is here http://aprsisce.wikidot.com/doc:satelliteops I wrote most of that after using the ISS for awhile


      Steve Daniels

      Amateur Radio Callsign G6UIM

      Torbay Freecycle  Owner


      APRSISCE/32 Beta tester and WIKI editor http://aprsisce.wikidot.com


      From: aprsisce@yahoogroups.com [mailto:aprsisce@yahoogroups.com] On Behalf Of reed2web
      Sent: 29 April 2013 15:48
      To: aprsisce@yahoogroups.com
      Subject: [aprsisce] Dual iGate: Terrestrial and ISS



      I would appreciate hints on the best way to setup APRSISCE to receive APRS from the ISS 145.825) and receive/send from land (144.39) using one computer. I would like to do this on a single Windows XP laptop. I will add an external ham sound "card," using the internal sound card for 144.39 and external for 145.825 (without hardware TNCs). At least, that's the initial plan.

      For example, should I run two instances of APRSISCE in two separate directory structures, or can one instance handle both situations? I expect I will need to run two instances of the TNC software.

      Your thoughts appreciated, *especially* if you have setup a dual-port station like this. I am inexperienced with APRSISCE, so please don't assume I already know all the details. Being an old geek, I do have a lengthy computer background, although most of it is with Unix/Linux and Mac.

      Thanks ... Reed K7FLY

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