Last updated: 18 February 2009
This page is for user comments and information specific to the Meade ETX-90RA (originally known as the "ETX Astro"). Comments on accessories and feedback items appropriate to other ETX, DSX, and DS models are posted on other pages. If you have any comments, suggestions, questions or answers to questions posed here, e-mail them to me for posting. Please use an appropriate Subject Line on your message per the Site Email Etiquette. Thanks. Remember, tips described on this site may invalidate the warranty on your telescope or accessories. Neither the submitter nor myself are responsible for any damage caused by using any contributed tips.
Subject: Putting Autostar on the ETX-90RA Sent: Tuesday, February 17, 2009 21:05:39 From: Bill Pearce (email@example.com) The best thing to do here is to find a used Complete ETX90 EC Base W/Controller and trunions (tube mountings), and just transfer the tube to the new base. I would advise getting the Autostar 497 controller, it has a larger database, and is easier to update. I had both the RA and EC bases. The RH trunion had to be heavily modified to fit the AT fork arm. This included making my own clutch assembly. It works great, and has no slippage, and the GOTO is dead on. I would not go this route unless you have experience in this area. I did see online at: http://www.scopelogic.com/Item.aspx?id=0101 that they have a RH tube adapter made of machined aluminum for around $75. Looks like a really nicely constructed piece. I may buy one myself just in case. But for right now, I'm satisfied. Good Luck, Bill
Subject: Putting Autostar on the ETX-90RA Sent: Sunday, February 8, 2009 13:53:24 From: Robert M (firstname.lastname@example.org) Can you tell me if any of your readers has modified this scope and ended up with a reliable "go-to" system?Mike here: The ETX-90RA is not AutoStar capable. You could either put the OTA on a different mount or use something like the "JMI NGC-microMAX/NGC-MAX" (if still available; see the Accessory Reviews: Miscellaneous page on my ETX Site).
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