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

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  • Adam Mahnke
    May 7, 2013
    • 0 Attachment
      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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