[amsat-bb] SDX stops responding

[Devin L. Ganger]

You might want to check your power management settings. Some USB port drivers don't properly handle the situation of getting put to sleep with a device attached and then properly waking back up, and that could be confusing anything talking to the COM port the USB device is representing.

For my "ham" laptop, I normally keep it plugged into my docking station, so I have a custom power management profile that disallows sleeping or hibernating when docked/plugged in. I still turn the display off after a few minutes, but I make sure that the CPU, network, and drives are not powered down when I'm plugged in. This made a lot of my USB-related gremlins go away, even on cheaper USB chipsets.

--
Devin L. Ganger (WA7DLG)
email: devin at thecabal.org
web: Devin on Earth <http://www.devinonearth.com/>
cell: +1 425.239.2575

On 9/7/18, 15:04, "AMSAT-BB on behalf of Frank" <amsat-bb-bounces at amsat.org on behalf of k6fw1 at verizon.net> wrote:

    In my installation I am using a USB port on the rear of the computer to 
    the ERC interface.  No RS-232 ports involved.  Mine has never locked up 
    during operation.  Only time I have an issue is after a period of 
    inactivity IE. overnight.  I then use Windows Task Manager to close both 
    SatPC32 and SDX and relaunch the programs.  Don't have to restart the 
    computer.
    
    Frank
    K6FW
    
    On 9/7/18 1:30 AM, Jean Marc Momple wrote:
    > Hi,
    >
    > I had similar problem in the past whereby the SDX will not respond.
    >
    > The issue was not the SDX but the cheap USB-Serial converter using Prolific chip, I tried a few of these and same symptoms. This was particularly annoying when in the middle of the QSO, having to close everything, restart the computer (sometimes a few times) to get it again working.
    >
    > I finally bought a good quality 4-Way RS232 to USB with FTDI chip and now using only one USB port for Rotor, CAT and GPS clock, no more issue.
    >
    > May be above can help.
    >
    > 73
    >
    > Jean Marc (3B8DU)
    >
    >
    >> On Sep 7, 2018, at 11:22 AM, Erich Eichmann <erich.eichmann at t-online.de> wrote:
    >>
    >> Hi Kevin and others,
    >> perhaps you want to try the older version of ServerSDX.exe whether it works better. This version only outputs az and el to the controller but doesn't read the actual position as the newer version does (the reading function was a suggestion of a user who worked the program remotely so that he could no see his antenna).
    >> The older file can be downlaoded here:
    >> www.dk1tb.de/ServerSDX.exe
    >> First save your present file, for example rename it, then copy the downloaded file into the sub folder SDX of the SatPC32 program folder.
    >> 73s, Erich, DK1TB
    >>
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    _______________________________________________
    Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
    to all interested persons worldwide without requiring membership. Opinions expressed
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    Not an AMSAT-NA member? Join now to support the amateur satellite program!
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