I recently purchased a Televue Gibraltar mount equipped with encoders. I don't need them. They are US Digital, for Sky Commander or similar DSC computers. Azimuth encoder is 4096 tic w/ JMI mounting hardware. Altitude encoder is inclinometer type, 3600 tic. Mounting instructions included. $75., free shipping in conus. Paypal (no additional fee) or other form of payment accepted. See photo.