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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
2.4 DH Antenna installation
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<blockquote data-quote="s-band" data-source="post: 1006603" data-attributes="member: 407744"><p>Thanks to John's new servo motor, my Corotor is now working again. In testing I found that I needed 300-2400us pulse widths to cover the full 180degree range. The standard servo range is 1000-2000us for radio control and it would be hard to get the probe positions needed for both V/H linear and L/R circular polarisations on my corotor. I don't know what you'll be using but I found that this works well and covers more than the required pulse width range: <a href="https://www.pololu.com/product/1350" target="_blank">Pololu - Micro Maestro 6-Channel USB Servo Controller (Assembled)</a> There is enough power on a standard USB for the servo if a capacitor is added to cope with peak drain. That way you don't need yet another PSU and can run the servo just from the PC. You could probably run 2 or 3 servos from the USB power as long as only one servo was moving at any one time. I'll post my wiring mod for the Pololu if anyone wants it.</p></blockquote><p></p>
[QUOTE="s-band, post: 1006603, member: 407744"] Thanks to John's new servo motor, my Corotor is now working again. In testing I found that I needed 300-2400us pulse widths to cover the full 180degree range. The standard servo range is 1000-2000us for radio control and it would be hard to get the probe positions needed for both V/H linear and L/R circular polarisations on my corotor. I don't know what you'll be using but I found that this works well and covers more than the required pulse width range: [URL='https://www.pololu.com/product/1350']Pololu - Micro Maestro 6-Channel USB Servo Controller (Assembled)[/URL] There is enough power on a standard USB for the servo if a capacitor is added to cope with peak drain. That way you don't need yet another PSU and can run the servo just from the PC. You could probably run 2 or 3 servos from the USB power as long as only one servo was moving at any one time. I'll post my wiring mod for the Pololu if anyone wants it. [/QUOTE]
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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
2.4 DH Antenna installation
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