Jump to content

sgl_imaging_challenge_2021_annual.thumb.jpg.3fc34f695a81b16210333189a3162ac7.jpg

LX200 Classic - how to make it quieter?


Recommended Posts

I recently bought a Meade 8" LX200 Classic SCT (I was originally just looking to add GOTO to my HEQ5 but...). I used to drool over such a machine 10 years ago so I'm pretty pleased with myself. BUT it's blumming noisy when slewing! Like a coffee grinder - I didn't expect that.

My neighbour's bedroom window is pretty much at the same level as the scope when it's outside so the noise is a bit of a problem.

Does anyone have any mechanical solutions for making it quieter? Or is there a way to make it use the slower, quieter slewing speed when goto-ing?

Link to post
Share on other sites

The LX200 Classic uses the original Autostar, & doesn't have a 'quiet slew' function the way the #497 Autostar does (it is also not possible to update in the same way that the #497 Autostar is). You can however, adjust the slew rate to a lower speed, which will reduce the noise fairly significantly. Yes, this does mean the tube will move from target to target slower, but what's the rush? :scratch:

I don't recall what keystrokes are required to make the adjustment but it should be in the manual.

...& don't sell it & buy a Celestron...the LX200 Classics are superb. 8)

Link to post
Share on other sites

Don't sell!!!

I agree, the LX200 classics are great scopes.

You should set the max slew rate to no more than 1.5 degrees per second. This is much quieter and really reduces the strain on the small plastic gears in there. Never use the max slew rate. The OTA has a lot of momentum when slewing full tilt.

Cheers

Rob

Link to post
Share on other sites

Just to clarify. The LX200 Classic doesn't use the Autostar controller. The square hand paddle is just a switching device; the smart electronics are in base.

I use 18V input and find my 10" is much louder than the 12" Don't know why.

Link to post
Share on other sites

Thanks for the support guys, yeah I used to dream of a having an LX200 it's certainly an impressive hunk of metal and glass. I don't want to sell if I can find a way around this.

Shame about the controller, though I have found the Max Slew speed option (its in Telescope>Slew Rate (or something)) and set it to 4 instead of 8. BUT this does not affect the GOTO speed which is always full tilt, it only affects manual slew control.

Anyone know how to reduce the GOTO slewing as well? I can't find this in the manual. Perhaps there a sw hack???

Link to post
Share on other sites

Unfortunately both my LX200's are down at the moment...

Looking through the manual (again!) and my notes I can't find anything on changing the GOTO slew rate.

Sounds like a good question for the Yahoo LX200 forum?

Link to post
Share on other sites

I found the solution - sort of. If you connect to the scope via a laptop ScopeDriver can set the maximum Slew Rate which works with its Find/GOTO features. Still no solution for the handset though.

Thanks for checking Merlin I'll have a look at the Yahoo forum, I haven't been on it yet.

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. By using this site, you agree to our Terms of Use.