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RE: [aprsisce] KISS mode for APRS done in 141A (ALE) or ALE400

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  • Steve Daniels
    I am playing with APRS on PSK at the moment will give it a go Steve Daniels Amateur Radio Callsign G6UIM Torbay Freecycle Owner
    Message 1 of 2 , May 16, 2013

      I am playing with APRS on PSK at the moment will give it a go

       

      Steve Daniels

      Amateur Radio Callsign G6UIM

      Torbay Freecycle  Owner

      http://uk.groups.yahoo.com/group/torbay_freecycle

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

       


      From: aprsisce@yahoogroups.com [mailto: aprsisce@yahoogroups.com ] On Behalf Of Steinar Aanesland
      Sent: 16 May 2013 19:45
      To: aprsisce@yahoogroups.com
      Subject: [aprsisce] KISS mode for APRS done in 141A (ALE) or ALE400

       

       


      Hi all

      Some of you probably know this, but Patrick f6cte has made a KISS mode
      for APRS done in 141A (ALE) or ALE400.

      I am on 14094 +1500Hz in ALE400/KISS and using APRSIS32 .
      Try to connect .

      ---

      I am cross posting a mail from Patrick with a link to the beta of Multipsk.

      LA5VNA S

      >
      > Den 16.05.2013 19:07, skrev Patrick Lindecker:
      >> Hello to all testers,
      >> I propose a Multipsk test version 5:
      >> http://f6cte.free.fr/MULTIPSK_TEST_16_05_2013.ZIP
      >> Paste this address in your Internet Explorer or equivalent. Download
      the
      >> file.
      >> Create a temporary folder (C:\TEST, for example), unzip the file in
      it, copy
      >> and paste your user key, start C:\TEST\Multipsk.exe (the auxiliary
      files
      >> will be created automatically). For APT experimentation, copy your
      user key
      >> inside the temporary folder (to take profit of several functions under
      >> license).
      >>
      >> This test version gives possibility to control APRS (RX/TX) in ALE and
      >> ALE400 (sub-mode FAE) through a KISS connection (through a real or
      virtual
      >> serial port or a TCP/IP link). For example, UI-VIEW can be connected
      to
      >> Multipsk (through a virtual serial port in this case).
      >> Inside the test package, it is proposed an ""EASY" PAPER"
      (based on
      >> snapshots, they show how to use easily a mode or a function) called
      >>
      "ALE_and_ALE400_APRS_with_UI-VIEW_through_Multipsk_easy.doc".
      >>
      >> It is also proposed to decode APT pictures (in a simple way). It is
      >> experimental because, in fact, with my vertical 144 MHz antenna and my
      >> FunCube dongle, I have not been able to capture any APT picture.
      However,
      >> normally, APT decoding might work.
      >> * "APT" is worth for "Automatic Picture
      Transmission". It is a mode
      >> allowing transmission of fax pictures, used by the NOAA satellites 15
      >> (137.620 MHz), 18 (137.9125 MHz) et 19 (137.100 MHz). It is
      transmitted a
      >> pair of fax pictures (one done during daylight and one in infra-red)
      in
      >> amplitude modulation of a 2400 Hz carrier, this one transmitted in FM
      on a
      >> 30 KHz bandwidth. For more details, see:
      >> http://www.canarysatellite.com/apt_format.html
      >> * The receiver can be an SdR (FunCube Dongle for example). In this
      >> case, the FM demodulation can be done directly by Multipsk. It can be
      also
      >> used a demodulator connected to Multipsk via a virtual sound card, for
      >> example.
      >> Specificities of APT pictures reception (on SdR receiver)
      >> It is necessary, at first, to demodulate the FM transmission to be
      able,
      >> afterwards, to decode the FM carrier at 2400 Hz.
      >> The FM demodulation can be done either by a FM demodulator program
      connected
      >> to Multipsk through a virtual sound card or directly by Multipsk (best
      >> solution).
      >> To make Multipsk demodulates FM, click on the button corresponding to
      your
      >> SdR receiver ("FunCube" for exemple), or otherwise on the
      "Direct interface
      >> through the sound card" button. It will be opened a SdR window
      called "I/Q
      >> direct interface via the sound card, for SdR transceivers" (for
      details, see
      >> Direct interface for SdR receiver ot transceiver <sdr.htm> ).
      >> Select the appropriate frequency and gain (maximum, a priori) after
      having
      >> pushed the "Transceiver" button.
      >> Select "FM x KHz" and adjust the FM bandwidth to 30 KHz.
      When the satellite
      >> is passing over your position (one time each 6 hours, during 10 to 15
      >> minutes), center, on the "SdR" waterfall, the reception on
      the APT
      >> transmission, then push the "afc" button. Do in such way
      that the signal be
      >> centered on the SdR waterfall (towards 0 Hz).
      >> APT pictures must appear.
      >> The displayed "Global level" on the "I/Q direct
      interface" panel must be
      >> sufficient (at least 10 %). Increase the SdR gain if necessary.
      >> Thanks for reports.
      >>
      >> 73
      >> Patrick_,___

      ------------------------------------

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