Erich,
So far the stalls have occurred in the middle of the night. One was showing the elevation at 4 degrees, with the target at 0. The Labjack server was indicating a down command. I closed and restarted SatPC32 and when I selected Park, it dropped to 0 and the desired azimuth. The second time was an azimuth problem, with a large difference between the commanded and actual position. The Labjack server was indicating a turn. Closing and restarting cleared the problem.
There are two changes that I know of. I recently changed the rotor position change window from 3 degrees to 10 degree to reduce wear, as that is close enough for LEOs. I have reset that to 3 degrees to remove the variable.
Mark, G0MGX suggested that I look at KB4103718, which has been reported to be causing some USB issues. I have removed it, and will see what happens. If it happens again, I will get more details. It certainly looks like something in the OS rather than SatPC32.
73,
Alan WA4SCA
<-----Original Message----- <From: Erich Eichmann [mailto:[email protected]] <Sent: Wednesday, May 30, 2018 11:06 AM <To: [email protected]; [email protected] <Subject: Re: [amsat-bb] Help with SatPC32 Labjack Yaesu 5500 rotator control < <Hello Alan, Nick and others, <I didn't make any changes with ServerLabjack. The file is unchanged <since Dec. 12. 2012. SatPC32 itself only outputs the target positions <to ServerLabjack. Only this file then checks whether the rotors have <reached the target positions. <Is there any correlation between updating the target positions by <SatPC32 and stalling of the rotor? < <I also use Windows 7, 64-bit and the Labjack U-12 with a KR-5600. <Lately I used it for multiple satellite passes and I just tested full <360° turns of the az. rotor/ 90° turns of the el. rotor in both <direction (entered target postions in menu "Rotor"). No issues so far. <73s, Erich, DK1TB < <Am 30.05.2018 um 16:18 schrieb Alan: <> Same here, beginning a week or so back. Investigating, but so far nothing <> determined. Using WIN7 64-bit, and wondering if there was something in <the <> recent updates. <> <> 73, <> <> Alan <> WA4SCA <> <> <> <-----Original Message----- <> <From: AMSAT-BB [mailto:[email protected]] On Behalf Of <Nick <> <Pugh <> <Sent: Wednesday, May 30, 2018 08:54 AM <> <To: 'Amsat BB' [email protected] <> <Subject: [amsat-bb] help with yaesu 5500 rotator <> < <> <Hello Amsat-ers <> < <> < <> < <> <I am using an Yaesu 5500 rotator controlled by a Lab jack under Satpc32 <> <v8.1. Intermittently the rotator stall under computer control. The LED on <> <the lab jack indicate a signal to control the rotator to move but no <> <movement. Terminating Satpc32 the rotator works normal. Suggestions?? <> < <> < <> < <> < <> < <> < <> < <> <Nick k6qxj <> < <> <_______________________________________________ <> <Sent via [email protected]. AMSAT-NA makes this open forum <available <> <to all interested persons worldwide without requiring membership. <Opinions <> <expressed <> <are solely those of the author, and do not reflect the official views of <> AMSAT- <> <NA. <> <Not an AMSAT-NA member? Join now to support the amateur satellite <> <program! <> <Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb <> <> _______________________________________________ <> Sent via [email protected]. AMSAT-NA makes this open forum <available <> to all interested persons worldwide without requiring membership. <Opinions expressed <> are solely those of the author, and do not reflect the official views of <AMSAT-NA. <> Not an AMSAT-NA member? Join now to support the amateur satellite <program! <> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb