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Delay before N or S movement, not E or W

Michael A. Covington All Messages By This Member #77735 Trivia question.? New GM811G, my first Losmandy mount although I have a lot of experience with other mounts.? Visual observing session with C8 at 110x. Go-to and tracking are good. Hand-box-button speed is set to Center.? When I press the east or west button, the star moves instantly, but when I press the north or south button, there is about a 1.5-second delay before any movement.? I wish I had thought to listen whether the motor was running before visible movement started (I suspect it wasn't).? The very constant nature of the delay (1.5 seconds every time) led me to think it was programmed into the firmware, rather than due to backlash, but I couldn't think why they'd do it that way.? Is this normal?
Brian Valente Member Profile All Messages By This Member #77740 Hi Michael >>Hand-box-button speed is set to Center.? When I press the east or west button, the star moves instantly, but when I press the north or south button, there is about a 1.5-second delay before any movement. That sounds like backlash. If you want to reduce that for a visual session you can increase the TVC value. ? toggle quoted message Show quoted text On Sun, Aug 28, 2022 at 7:45 PM Michael A. Covington <astro@...> wrote: Trivia question.? New GM811G, my first Losmandy mount although I have a lot of experience with other mounts.? Visual observing session with C8 at 110x. Go-to and tracking are good. Hand-box-button speed is set to Center.? When I press the east or west button, the star moves instantly, but when I press the north or south button, there is about a 1.5-second delay before any movement.? I wish I had thought to listen whether the motor was running before visible movement started (I suspect it wasn't).? The very constant nature of the delay (1.5 seconds every time) led me to think it was programmed into the firmware, rather than due to backlash, but I couldn't think why they'd do it that way.? Is this normal? -- Brian? Brian Valente astro portfolio? portfolio astrobin?
Bill Wille All Messages By This Member #77749 Brian, I once tried adjusting the TVC value for this very issue, only to discover that TVC only works when the Speed is set to "Guide". Can you confirm TV works when speed is set to "Center"? -Bill
Brian Valente Member Profile All Messages By This Member #77750 >>> I once tried adjusting the TVC value for this very issue, only to discover that TVC only works when the Speed is set to "Guide". Yes, that's correct Sorry i re-read the op which I thought was guide mode, but i missed the center part. TVC only affects guide speed toggle quoted message Show quoted text On Mon, Aug 29, 2022 at 5:03 PM Bill Wille <wcwille@...> wrote: Brian, I once tried adjusting the TVC value for this very issue, only to discover that TVC only works when the Speed is set to "Guide". Can you confirm TV works when speed is set to "Center"? -Bill -- Brian? Brian Valente astro portfolio? portfolio astrobin?

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