thumb_satpc32.jpgErich Eichmann DK1TB har släppt version 12.8 av SatPC32.  Ett satellit-spårningsprogram som innehåller förbättringar för Windows Vista kompabilitet, CAT control av många stationer. Erich Eichmann DK1TB har donerat SatPC32 till AMSAT. Var snäll och supporta amatörsatelliter genom att registrera din kopia av SatPC32.

En demoversion av programmet kan laddas ned från upphovmannens webbplats:

Programmet eller registreringsnyckel till demoprogrammet kan laddas ned från AMSAT's webshop:

Nyheterna i version 12.8 är följande:

 1. The 16-bit setup program has been replaced by the

    latest 32-bit Vista compatible version of Installshield


 2. The CAT steering functions of SatPC32 have been expanded:

 a. The program now supports Doppler tuning with a single

    ICOM IC-706MKIIG, IC-7000 and compatible radios,

    although these radios are not full duplex satellite

    transceivers. Previous versions of SatPC32 already support

    satellite operation  with a single one of the Yaesu half

    duplex radios FT-817, FT-857, FT-897.

    With half duplex transceivers you can't hear your own

    signal on the downlink like you can with full duplex

    radios. However, the program automatically sets the uplink

    and downlink frequencies to the correct values. So, it

    allows voice operation over FM and SSB satellites and 

    also digital operation. Read the "Hints for .... users

    of Icom radios" how to calibrate SSB frequencies when

    using a half duplex radio. The file can be opened from

    the SatPC32 menu "?" / "Hints for...".

 b. Full duplex satellite operation with 2 separate radios

    for uplink and downlink has been improved.

    Previously, one had to run the tool TxController (that came

    with SatPC32) to steer 2 separate radios. SatPC32 then

    steered the RX radio directly and TxController the second

    radio as the TX. Via DDE, TxController received the data

    calculated by SatPC32, using the data to steer the mode and

    frequency of the TX radio.

    A problem occured when the user switched between a V/U

    satellite (uplink on VHF, downlink on UHF, e.g. AO-51) and

    an U/V satellite (uplink on UHF, downlink on VHF, e.g.

    VO-52). With V/U satellites the VHF radio had to run as

    the TX and the UHF radio as the RX, with U/V satellites the

    situation was vice versa.  Since TxController could only

    steer the TX radio, a second instance of SatPC32 and

    TxController and a program re-start were necessary when

    the user switched between such satellites.

    Now SatPC32 itself steers also the second radio directly.

    The configuration can be done in the "Radio 2" section of

    the menu "Radio Setup".

    Numerous devices can be combined, e.g. the Yaesu semi

    duplex transceivers with each other or with Icom semi

    duplex radios or single band radios or Icom radios with

    each other.

    With 2 Icom radios only a single serial port is required.

    Both radios can be connected in parallel to the

    CAT interface.

    When the user switches from a V/U satellite to a U/V

    satellite or vice versa the program will (optionally)

    exchange the roles of both radios as TX and RX.    

    Example: With FO-29 a FT-817 (that is connected to the UHF

    antenna) runs as RX, an IC-706MKIIG (that is connected to

    the 2m antenna) runs as TX. When the user tunes the FT-817

    with the VFO around the passband the program will

    automatically tune the frequency of the IC-706MKIIG to the

    correct uplink frequency and the user will immediately hear

    his signal on the new frequency. 

    When the user switches to a U/V satellite the IC-706MKIIG

    will run as the RX on VHF. When the user tunes it's VFO the

    program will tune the FT-817 to the correct UHF uplink



 3. The Vista compatibility has been improved. Previously the

    SatPC32 data files were stored in the SatPC32 program folder.

    They could be edited with Notepad.  


    Under Windows Vista, however, this method causes problems

    if the new "User Account Control" (UAC) is activated

    (recommended by Microsoft). Then Vista inhibits changes of

    the original data files and creates copies with the changes

    instead. Vista saves these copies in a hard-to-find

    "compatibilty" folder.


    Therefore the SatPC32 data files are no longer stored in the

    program folder but in a sub folder 'SatPC32' in the system

    folder for application data.

    The program displays the path of this data folder in the

    bottom line of the menu 'Satellites'.



 4. SatPC32 now includes a simple text editor that can alternatively

    be used to edit auxiliary files.


    In the auxiliary file DivOptions.SQF the user can choose whether

    he wants the auxiliary files to be  opened with Notepad or with

    the SatPC32 editor, see the hints in DivOptions.SQF.    

 5. Further improvements:

 a. SatPC32 supports now the FMN (narrow FM) mode of the IC-910H.

    In the file Doppler.SQF enter FMN as the mode if this mode is to be



 b. With previous  version the menu "CAT" needed to be closed

    when the satellite is changed. Otherwise the program could not

    update the frequency list. That has been changed. So, the CAT

    window can now be left open during operation. It should then be moved

    out of the main window. 

 c. The program now shows the file date of the selected Keplerian

    data file in the bottom line of the menu "Satellites". So the

    user immediately knows whether the data should be updated. 

 d. SatPC32ISS:

    CAT steering of the FT-736R didn't work reliably when the

    satellite's uplink and downlink frequency are the same, e.g.

    the packet frequency of the ISS on 145.825 MHz. This has been


 e. Some minor bugs have been fixed.

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